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项目语言:PYTHON
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testpy273/
#!/usr/bin/env python
&&&Create a &virtual& Python installation
# If you change the version here, change it in setup.py
# and docs/conf.py as well.
__version__ = &1.8.2&
# following best practices
virtualenv_version = __version__
# legacy, again
import base64
import sys
import codecs
import optparse
import shutil
import logging
import tempfile
import zlib
import errno
import glob
import distutils.sysconfig
from distutils.util import strtobool
import struct
import subprocess
if sys.version_info & (2, 5):
print('ERROR: %s' % sys.exc_info()[1])
print('ERROR: this script requires Python 2.5 or greater.')
sys.exit(101)
except NameError:
from sets import Set as set
basestring
except NameError:
basestring = str
import ConfigParser
except ImportError:
import configparser as ConfigParser
join = os.path.join
py_version = 'python%s.%s' % (sys.version_info[0], sys.version_info[1])
is_jython = sys.platform.startswith('java')
is_pypy = hasattr(sys, 'pypy_version_info')
is_win = (sys.platform == 'win32')
is_cygwin = (sys.platform == 'cygwin')
is_darwin = (sys.platform == 'darwin')
abiflags = getattr(sys, 'abiflags', '')
user_dir = os.path.expanduser('~')
if is_win:
default_storage_dir = os.path.join(user_dir, 'virtualenv')
default_storage_dir = os.path.join(user_dir, '.virtualenv')
default_config_file = os.path.join(default_storage_dir, 'virtualenv.ini')
if is_pypy:
expected_exe = 'pypy'
elif is_jython:
expected_exe = 'jython'
expected_exe = 'python'
REQUIRED_MODULES = ['os', 'posix', 'posixpath', 'nt', 'ntpath', 'genericpath',
'fnmatch', 'locale', 'encodings', 'codecs',
'stat', 'UserDict', 'readline', 'copy_reg', 'types',
're', 'sre', 'sre_parse', 'sre_constants', 'sre_compile',
'zlib']
REQUIRED_FILES = ['lib-dynload', 'config']
majver, minver = sys.version_info[:2]
if majver == 2:
if minver &= 6:
REQUIRED_MODULES.extend(['warnings', 'linecache', '_abcoll', 'abc'])
if minver &= 7:
REQUIRED_MODULES.extend(['_weakrefset'])
if minver &= 3:
REQUIRED_MODULES.extend(['sets', '__future__'])
elif majver == 3:
# Some extra modules are needed for Python 3, but different ones
# for different versions.
REQUIRED_MODULES.extend(['_abcoll', 'warnings', 'linecache', 'abc', 'io',
'_weakrefset', 'copyreg', 'tempfile', 'random',
'__future__', 'collections', 'keyword', 'tarfile',
'shutil', 'struct', 'copy', 'tokenize', 'token',
'functools', 'heapq', 'bisect', 'weakref',
'reprlib'])
if minver &= 2:
REQUIRED_FILES[-1] = 'config-%s' % majver
if minver == 3:
# The whole list of 3.3 modules is reproduced below - the current
# uncommented ones are required for 3.3 as of now, but more may be
# added as 3.3 development continues.
REQUIRED_MODULES.extend([
# &antigravity&,
# &argparse&,
# &asynchat&,
# &asyncore&,
# &binhex&,
# &bisect&,
# &calendar&,
# &cgitb&,
# &chunk&,
# &codeop&,
# &colorsys&,
# &_compat_pickle&,
# &compileall&,
# &concurrent&,
# &configparser&,
# &contextlib&,
# &cProfile&,
# &crypt&,
# &ctypes&,
# &curses&,
# &datetime&,
# &decimal&,
# &difflib&,
# &doctest&,
# &dummy_threading&,
&_dummy_thread&,
# &email&,
# &filecmp&,
# &fileinput&,
# &formatter&,
# &fractions&,
# &ftplib&,
# &functools&,
# &getopt&,
# &getpass&,
# &gettext&,
&hashlib&,
# &heapq&,
# &idlelib&,
# &imaplib&,
# &imghdr&,
# &importlib&,
# &inspect&,
# &lib2to3&,
# &logging&,
# &macpath&,
# &macurl2path&,
# &mailbox&,
# &mailcap&,
# &_markupbase&,
# &mimetypes&,
# &modulefinder&,
# &multiprocessing&,
# &netrc&,
# &nntplib&,
# &nturl2path&,
# &numbers&,
# &opcode&,
# &optparse&,
# &os2emxpath&,
# &pickle&,
# &pickletools&,
# &pipes&,
# &pkgutil&,
# &platform&,
# &plat-linux2&,
# &plistlib&,
# &poplib&,
# &pprint&,
# &profile&,
# &pstats&,
# &pyclbr&,
# &py_compile&,
# &pydoc_data&,
# &pydoc&,
# &_pyio&,
# &queue&,
# &quopri&,
# &reprlib&,
&rlcompleter&,
# &runpy&,
# &sched&,
# &shelve&,
# &shlex&,
# &smtpd&,
# &smtplib&,
# &sndhdr&,
# &socket&,
# &socketserver&,
# &sqlite3&,
# &stringprep&,
# &string&,
# &_strptime&,
# &subprocess&,
# &sunau&,
# &symbol&,
# &symtable&,
# &sysconfig&,
# &tabnanny&,
# &telnetlib&,
# &textwrap&,
# &_threading_local&,
# &threading&,
# &timeit&,
# &tkinter&,
# &tokenize&,
# &token&,
# &traceback&,
# &trace&,
# &turtledemo&,
# &turtle&,
# &unittest&,
# &urllib&,
# &weakref&,
# &webbrowser&,
# &wsgiref&,
# &xdrlib&,
# &xmlrpc&,
# &zipfile&,
if is_pypy:
# these are needed to correctly display the exceptions that may happen
# during the bootstrap
REQUIRED_MODULES.extend(['traceback', 'linecache'])
class Logger(object):
Logging object for use in command-line script.
Allows ranges of
levels, to avoid some redundancy of displayed information.
DEBUG = logging.DEBUG
INFO = logging.INFO
NOTIFY = (logging.INFO + logging.WARN) / 2
WARN = WARNING = logging.WARN
ERROR = logging.ERROR
FATAL = logging.FATAL
LEVELS = [DEBUG, INFO, NOTIFY, WARN, ERROR, FATAL]
def __init__(self, consumers):
self.consumers = consumers
self.indent = 0
self.in_progress = None
self.in_progress_hanging = False
def debug(self, msg, *args, **kw):
self.log(self.DEBUG, msg, *args, **kw)
def info(self, msg, *args, **kw):
self.log(self.INFO, msg, *args, **kw)
def notify(self, msg, *args, **kw):
self.log(self.NOTIFY, msg, *args, **kw)
def warn(self, msg, *args, **kw):
self.log(self.WARN, msg, *args, **kw)
def error(self, msg, *args, **kw):
self.log(self.ERROR, msg, *args, **kw)
def fatal(self, msg, *args, **kw):
self.log(self.FATAL, msg, *args, **kw)
def log(self, level, msg, *args, **kw):
raise TypeError(
&You may give positional or keyword arguments, not both&)
args = args or kw
rendered = None
for consumer_level, consumer in self.consumers:
if self.level_matches(level, consumer_level):
if (self.in_progress_hanging
and consumer in (sys.stdout, sys.stderr)):
self.in_progress_hanging = False
sys.stdout.write('\n')
sys.stdout.flush()
if rendered is None:
rendered = msg % args
rendered = msg
rendered = ' ' * self.indent + rendered
if hasattr(consumer, 'write'):
consumer.write(rendered + '\n')
consumer(rendered)
def start_progress(self, msg):
assert not self.in_progress, (
&Tried to start_progress(%r) while in_progress %r&
% (msg, self.in_progress))
if self.level_matches(self.NOTIFY, self._stdout_level()):
sys.stdout.write(msg)
sys.stdout.flush()
self.in_progress_hanging = True
self.in_progress_hanging = False
self.in_progress = msg
def end_progress(self, msg='done.'):
assert self.in_progress, (
&Tried to end_progress without start_progress&)
if self.stdout_level_matches(self.NOTIFY):
if not self.in_progress_hanging:
# Some message has been printed out since start_progress
sys.stdout.write('...' + self.in_progress + msg + '\n')
sys.stdout.flush()
sys.stdout.write(msg + '\n')
sys.stdout.flush()
self.in_progress = None
self.in_progress_hanging = False
def show_progress(self):
&&&If we are in a progress scope, and no log messages have been
shown, write out another '.'&&&
if self.in_progress_hanging:
sys.stdout.write('.')
sys.stdout.flush()
def stdout_level_matches(self, level):
&&&Returns true if a message at this level will go to stdout&&&
return self.level_matches(level, self._stdout_level())
def _stdout_level(self):
&&&Returns the level that stdout runs at&&&
for level, consumer in self.consumers:
if consumer is sys.stdout:
return level
return self.FATAL
def level_matches(self, level, consumer_level):
&&& l = Logger([])
&&& l.level_matches(3, 4)
&&& l.level_matches(3, 2)
&&& l.level_matches(slice(None, 3), 3)
&&& l.level_matches(slice(None, 3), 2)
&&& l.level_matches(slice(1, 3), 1)
&&& l.level_matches(slice(2, 3), 1)
if isinstance(level, slice):
start, stop = level.start, level.stop
if start is not None and start & consumer_level:
return False
if stop is not None and stop &= consumer_level:
return False
return True
return level &= consumer_level
# @classmethod
def level_for_integer(cls, level):
levels = cls.LEVELS
if level & 0:
return levels[0]
if level &= len(levels):
return levels[-1]
return levels[level]
level_for_integer = classmethod(level_for_integer)
# create a silent logger just to prevent this from being undefined
# will be overridden with requested verbosity main() is called.
logger = Logger([(Logger.LEVELS[-1], sys.stdout)])
def mkdir(path):
if not os.path.exists(path):
logger.info('Creating %s', path)
os.makedirs(path)
logger.info('Directory %s already exists', path)
def copyfileordir(src, dest):
if os.path.isdir(src):
shutil.copytree(src, dest, True)
shutil.copy2(src, dest)
def copyfile(src, dest, symlink=True):
if not os.path.exists(src):
# Some bad symlink in the src
logger.warn('Cannot find file %s (bad symlink)', src)
if os.path.exists(dest):
logger.debug('File %s already exists', dest)
if not os.path.exists(os.path.dirname(dest)):
logger.info('Creating parent directories for %s' % os.path.dirname(dest))
os.makedirs(os.path.dirname(dest))
if not os.path.islink(src):
srcpath = os.path.abspath(src)
srcpath = os.readlink(src)
if symlink and hasattr(os, 'symlink') and not is_win:
logger.info('Symlinking %s', dest)
os.symlink(srcpath, dest)
except (OSError, NotImplementedError):
logger.info('Symlinking failed, copying to %s', dest)
copyfileordir(src, dest)
logger.info('Copying to %s', dest)
copyfileordir(src, dest)
def writefile(dest, content, overwrite=True):
if not os.path.exists(dest):
logger.info('Writing %s', dest)
f = open(dest, 'wb')
f.write(content.encode('utf-8'))
f = open(dest, 'rb')
c = f.read()
if c != content.encode(&utf-8&):
if not overwrite:
logger.notify('File %s exists wi not overwriting', dest)
logger.notify('Overwriting %s with new content', dest)
f = open(dest, 'wb')
f.write(content.encode('utf-8'))
logger.info('Content %s already in place', dest)
def rmtree(dir):
if os.path.exists(dir):
logger.notify('Deleting tree %s', dir)
shutil.rmtree(dir)
logger.info('Do not need to delete %s; already gone', dir)
def make_exe(fn):
if hasattr(os, 'chmod'):
oldmode = os.stat(fn).st_mode & 0xFFF
newmode = (oldmode | 0x16D) & 0xFFF
# 0o555, 0o7777
os.chmod(fn, newmode)
logger.info('Changed mode of %s to %s', fn, oct(newmode))
def _find_file(filename, dirs):
for dir in reversed(dirs):
files = glob.glob(os.path.join(dir, filename))
if files and os.path.exists(files[0]):
return files[0]
return filename
def _install_req(py_executable, unzip=False, distribute=False,
search_dirs=None, never_download=False):
if search_dirs is None:
search_dirs = file_search_dirs()
if not distribute:
setup_fn = 'setuptools-*-py%s.egg' % sys.version[:3]
project_name = 'setuptools'
bootstrap_script = EZ_SETUP_PY
source = None
setup_fn = None
source = 'distribute-*.tar.gz'
project_name = 'distribute'
bootstrap_script = DISTRIBUTE_SETUP_PY
if setup_fn is not None:
setup_fn = _find_file(setup_fn, search_dirs)
if source is not None:
source = _find_file(source, search_dirs)
if is_jython and os._name == 'nt':
# Jython's .bat sys.executable can't handle a command line
# argument with newlines
fd, ez_setup = tempfile.mkstemp('.py')
os.write(fd, bootstrap_script)
os.close(fd)
cmd = [py_executable, ez_setup]
cmd = [py_executable, '-c', bootstrap_script]
cmd.append('--always-unzip')
remove_from_env = ['__PYVENV_LAUNCHER__']
if logger.stdout_level_matches(logger.DEBUG):
cmd.append('-v')
old_chdir = os.getcwd()
if setup_fn is not None and os.path.exists(setup_fn):
logger.info('Using existing %s egg: %s' % (project_name, setup_fn))
cmd.append(setup_fn)
if os.environ.get('PYTHONPATH'):
env['PYTHONPATH'] = setup_fn + os.path.pathsep + os.environ['PYTHONPATH']
env['PYTHONPATH'] = setup_fn
# the source is found, let's chdir
if source is not None and os.path.exists(source):
logger.info('Using existing %s egg: %s' % (project_name, source))
os.chdir(os.path.dirname(source))
# in this case, we want to be sure that PYTHONPATH is unset (not
# just empty, really unset), else CPython tries to import the
# site.py that it's in virtualenv_support
remove_from_env.append('PYTHONPATH')
if never_download:
logger.fatal(&Can't find any local distributions of %s to install &
&and --never-download is set.
Either re-run virtualenv &
&without the --never-download option, or place a %s &
&distribution (%s) in one of these &
&locations: %r& % (project_name, project_name,
setup_fn or source,
search_dirs))
sys.exit(1)
logger.info('No % downloading' % project_name)
cmd.extend(['--always-copy', '-U', project_name])
logger.start_progress('Installing %s...' % project_name)
logger.indent += 2
cwd = None
if project_name == 'distribute':
env['DONT_PATCH_SETUPTOOLS'] = 'true'
def _filter_ez_setup(line):
return filter_ez_setup(line, project_name)
if not os.access(os.getcwd(), os.W_OK):
cwd = tempfile.mkdtemp()
if source is not None and os.path.exists(source):
# the current working dir is hostile, let's copy the
# tarball to a temp dir
target = os.path.join(cwd, os.path.split(source)[-1])
shutil.copy(source, target)
call_subprocess(cmd, show_stdout=False,
filter_stdout=_filter_ez_setup,
extra_env=env,
remove_from_env=remove_from_env,
logger.indent -= 2
logger.end_progress()
if cwd is not None:
shutil.rmtree(cwd)
if os.getcwd() != old_chdir:
os.chdir(old_chdir)
if is_jython and os._name == 'nt':
os.remove(ez_setup)
def file_search_dirs():
here = os.path.dirname(os.path.abspath(__file__))
dirs = ['.', here,
join(here, 'virtualenv_support')]
if os.path.splitext(os.path.dirname(__file__))[0] != 'virtualenv':
# Proba just in case virtualenv is installed...
import virtualenv
except ImportError:
dirs.append(os.path.join(os.path.dirname(virtualenv.__file__), 'virtualenv_support'))
return [d for d in dirs if os.path.isdir(d)]
def install_setuptools(py_executable, unzip=False,
search_dirs=None, never_download=False):
_install_req(py_executable, unzip,
search_dirs=search_dirs, never_download=never_download)
def install_distribute(py_executable, unzip=False,
search_dirs=None, never_download=False):
_install_req(py_executable, unzip, distribute=True,
search_dirs=search_dirs, never_download=never_download)
_pip_re = re.compile(r'^pip-.*(zip|tar.gz|tar.bz2|tgz|tbz)$', re.I)
def install_pip(py_executable, search_dirs=None, never_download=False):
if search_dirs is None:
search_dirs = file_search_dirs()
filenames = []
for dir in search_dirs:
filenames.extend([join(dir, fn) for fn in os.listdir(dir)
if _pip_re.search(fn)])
filenames = [(os.path.basename(filename).lower(), i, filename) for i, filename in enumerate(filenames)]
filenames.sort()
filenames = [filename for basename, i, filename in filenames]
if not filenames:
filename = 'pip'
filename = filenames[-1]
easy_install_script = 'easy_install'
if is_win:
easy_install_script = 'easy_install-script.py'
# There's two subtle issues here when invoking easy_install.
# 1. On unix-like systems the easy_install script can *only* be executed
directly if its full filesystem path is no longer than 78 characters.
# 2. A work around to [1] is to use the `python path/to/easy_install foo`
pattern, but that breaks if the path contains non-ASCII characters, as
you can't put the file encoding declaration before the shebang line.
# The solution is to use Python's -x flag to skip the first line of the
# script (and any ASCII decoding errors that may have occurred in that line)
cmd = [py_executable, '-x', join(os.path.dirname(py_executable), easy_install_script), filename]
# jython and pypy don't yet support -x
if is_jython or is_pypy:
cmd.remove('-x')
if filename == 'pip':
if never_download:
logger.fatal(&Can't find any local distributions of pip to install &
&and --never-download is set.
Either re-run virtualenv &
&without the --never-download option, or place a pip &
&source distribution (zip/tar.gz/tar.bz2) in one of these &
&locations: %r& % search_dirs)
sys.exit(1)
logger.info('Installing pip from network...')
logger.info('Installing existing %s distribution: %s' % (
os.path.basename(filename), filename))
logger.start_progress('Installing pip...')
logger.indent += 2
def _filter_setup(line):
return filter_ez_setup(line, 'pip')
call_subprocess(cmd, show_stdout=False,
filter_stdout=_filter_setup)
logger.indent -= 2
logger.end_progress()
def filter_ez_setup(line, project_name='setuptools'):
if not line.strip():
return Logger.DEBUG
if project_name == 'distribute':
for prefix in ('Extracting', 'Now working', 'Installing', 'Before',
'Scanning', 'Setuptools', 'Egg', 'Already',
'running', 'writing', 'reading', 'installing',
'creating', 'copying', 'byte-compiling', 'removing',
'Processing'):
if line.startswith(prefix):
return Logger.DEBUG
return Logger.DEBUG
for prefix in ['Reading ', 'Best match', 'Processing setuptools',
'Copying setuptools', 'Adding setuptools',
'Installing ', 'Installed ']:
if line.startswith(prefix):
return Logger.DEBUG
return Logger.INFO
class UpdatingDefaultsHelpFormatter(optparse.IndentedHelpFormatter):
Custom help formatter for use in ConfigOptionParser that updates
the defaults before expanding them, allowing them to show up correctly
in the help listing
def expand_default(self, option):
if self.parser is not None:
self.parser.update_defaults(self.parser.defaults)
return optparse.IndentedHelpFormatter.expand_default(self, option)
class ConfigOptionParser(optparse.OptionParser):
Custom option parser which updates its defaults by by checking the
configuration files and environmental variables
def __init__(self, *args, **kwargs):
self.config = ConfigParser.RawConfigParser()
self.files = self.get_config_files()
self.config.read(self.files)
optparse.OptionParser.__init__(self, *args, **kwargs)
def get_config_files(self):
config_file = os.environ.get('VIRTUALENV_CONFIG_FILE', False)
if config_file and os.path.exists(config_file):
return [config_file]
return [default_config_file]
def update_defaults(self, defaults):
Updates the given defaults with values from the config files and
the environ. Does a little special handling for certain types of
options (lists).
# Then go and look for the other sources of configuration:
config = {}
# 1. config files
config.update(dict(self.get_config_section('virtualenv')))
# 2. environmental variables
config.update(dict(self.get_environ_vars()))
# Then set the options with those values
for key, val in config.items():
key = key.replace('_', '-')
if not key.startswith('--'):
key = '--%s' % key
# only prefer long opts
option = self.get_option(key)
if option is not None:
# ignore empty values
if not val:
# handle multiline configs
if option.action == 'append':
val = val.split()
option.nargs = 1
if option.action == 'store_false':
val = not strtobool(val)
elif option.action in ('store_true', 'count'):
val = strtobool(val)
val = option.convert_value(key, val)
except optparse.OptionValueError:
e = sys.exc_info()[1]
print(&An error occured during configuration: %s& % e)
sys.exit(3)
defaults[option.dest] = val
return defaults
def get_config_section(self, name):
Get a section of a configuration
if self.config.has_section(name):
return self.config.items(name)
def get_environ_vars(self, prefix='VIRTUALENV_'):
Returns a generator with all environmental vars with prefix VIRTUALENV
for key, val in os.environ.items():
if key.startswith(prefix):
yield (key.replace(prefix, '').lower(), val)
def get_default_values(self):
Overridding to make updating the defaults after instantiation of
the option parser possible, update_defaults() does the dirty work.
if not self.process_default_values:
# Old, pre-Optik 1.5 behaviour.
return optparse.Values(self.defaults)
defaults = self.update_defaults(self.defaults.copy())
for option in self._get_all_options():
default = defaults.get(option.dest)
if isinstance(default, basestring):
opt_str = option.get_opt_string()
defaults[option.dest] = option.check_value(opt_str, default)
return optparse.Values(defaults)
def main():
parser = ConfigOptionParser(
version=virtualenv_version,
usage=&%prog [OPTIONS] DEST_DIR&,
formatter=UpdatingDefaultsHelpFormatter())
parser.add_option(
'-v', '--verbose',
action='count',
dest='verbose',
default=0,
help=&Increase verbosity&)
parser.add_option(
'-q', '--quiet',
action='count',
dest='quiet',
default=0,
help='Decrease verbosity')
parser.add_option(
'-p', '--python',
dest='python',
metavar='PYTHON_EXE',
help='The Python interpreter to use, e.g., --python=python2.5 will use the python2.5 '
'interpreter to create the new environment.
The default is the interpreter that '
'virtualenv was installed with (%s)' % sys.executable)
parser.add_option(
'--clear',
dest='clear',
action='store_true',
help=&Clear out the non-root install and start from scratch&)
parser.set_defaults(system_site_packages=False)
parser.add_option(
'--no-site-packages',
dest='system_site_packages',
action='store_false',
help=&Don't give access to the global site-packages dir to the &
&virtual environment (default)&)
parser.add_option(
'--system-site-packages',
dest='system_site_packages',
action='store_true',
help=&Give access to the global site-packages dir to the &
&virtual environment&)
parser.add_option(
'--unzip-setuptools',
dest='unzip_setuptools',
action='store_true',
help=&Unzip Setuptools or Distribute when installing it&)
parser.add_option(
'--relocatable',
dest='relocatable',
action='store_true',
help='Make an EXISTING virtualenv environment relocatable.
'This fixes up scripts and makes all .pth files relative')
parser.add_option(
'--distribute', '--use-distribute',
# the second option is for legacy reasons here. Hi Kenneth!
dest='use_distribute',
action='store_true',
help='Use Distribute instead of Setuptools. Set environ variable '
'VIRTUALENV_DISTRIBUTE to make it the default ')
default_search_dirs = file_search_dirs()
parser.add_option(
'--extra-search-dir',
dest=&search_dirs&,
action=&append&,
default=default_search_dirs,
help=&Directory to look for setuptools/distribute/pip distributions in. &
&You can add any number of additional --extra-search-dir paths.&)
parser.add_option(
'--never-download',
dest=&never_download&,
action=&store_true&,
help=&Never download anything from the network.
Instead, virtualenv will fail &
&if local distributions of setuptools/distribute/pip are not present.&)
parser.add_option(
'--prompt',
dest='prompt',
help='Provides an alternative prompt prefix for this environment')
if 'extend_parser' in globals():
extend_parser(parser)
options, args = parser.parse_args()
global logger
if 'adjust_options' in globals():
adjust_options(options, args)
verbosity = options.verbose - options.quiet
logger = Logger([(Logger.level_for_integer(2 - verbosity), sys.stdout)])
if options.python and not os.environ.get('VIRTUALENV_INTERPRETER_RUNNING'):
env = os.environ.copy()
interpreter = resolve_interpreter(options.python)
if interpreter == sys.executable:
logger.warn('Already using interpreter %s' % interpreter)
logger.notify('Running virtualenv with interpreter %s' % interpreter)
env['VIRTUALENV_INTERPRETER_RUNNING'] = 'true'
file = __file__
if file.endswith('.pyc'):
file = file[:-1]
popen = subprocess.Popen([interpreter, file] + sys.argv[1:], env=env)
raise SystemExit(popen.wait())
# Force --distribute on Python 3, since setuptools is not available.
if majver & 2:
options.use_distribute = True
if os.environ.get('PYTHONDONTWRITEBYTECODE') and not options.use_distribute:
&The PYTHONDONTWRITEBYTECODE environment variable is &
&not compatible with setuptools. Either use --distribute &
&or unset PYTHONDONTWRITEBYTECODE.&)
sys.exit(2)
if not args:
print('You must provide a DEST_DIR')
parser.print_help()
sys.exit(2)
if len(args) & 1:
print('There must be only one argument: DEST_DIR (you gave %s)' % (
' '.join(args)))
parser.print_help()
sys.exit(2)
home_dir = args[0]
if os.environ.get('WORKING_ENV'):
logger.fatal('ERROR: you cannot run virtualenv while in a workingenv')
logger.fatal('Please deactivate your workingenv, then re-run this script')
sys.exit(3)
if 'PYTHONHOME' in os.environ:
logger.warn('PYTHONHOME is set.
You *must* activate the virtualenv before using it')
del os.environ['PYTHONHOME']
if options.relocatable:
make_environment_relocatable(home_dir)
create_environment(home_dir,
site_packages=options.system_site_packages,
clear=options.clear,
unzip_setuptools=options.unzip_setuptools,
use_distribute=options.use_distribute,
prompt=options.prompt,
search_dirs=options.search_dirs,
never_download=options.never_download)
if 'after_install' in globals():
after_install(options, home_dir)
def call_subprocess(cmd, show_stdout=True,
filter_stdout=None, cwd=None,
raise_on_returncode=True, extra_env=None,
remove_from_env=None):
cmd_parts = []
for part in cmd:
if len(part) & 45:
part = part[:20] + &...& + part[-20:]
if ' ' in part or '\n' in part or '&' in part or &'& in part:
part = '&%s&' % part.replace('&', '\\&')
if hasattr(part, 'decode'):
part = part.decode(sys.getdefaultencoding())
except UnicodeDecodeError:
part = part.decode(sys.getfilesystemencoding())
cmd_parts.append(part)
cmd_desc = ' '.join(cmd_parts)
if show_stdout:
stdout = None
stdout = subprocess.PIPE
logger.debug(&Running command %s& % cmd_desc)
if extra_env or remove_from_env:
env = os.environ.copy()
if extra_env:
env.update(extra_env)
if remove_from_env:
for varname in remove_from_env:
env.pop(varname, None)
env = None
proc = subprocess.Popen(
cmd, stderr=subprocess.STDOUT, stdin=None, stdout=stdout,
cwd=cwd, env=env)
except Exception:
e = sys.exc_info()[1]
logger.fatal(
&Error %s while executing command %s& % (e, cmd_desc))
all_output = []
if stdout is not None:
stdout = proc.stdout
encoding = sys.getdefaultencoding()
fs_encoding = sys.getfilesystemencoding()
line = stdout.readline()
line = line.decode(encoding)
except UnicodeDecodeError:
line = line.decode(fs_encoding)
if not line:
line = line.rstrip()
all_output.append(line)
if filter_stdout:
level = filter_stdout(line)
if isinstance(level, tuple):
level, line = level
logger.log(level, line)
if not logger.stdout_level_matches(level):
logger.show_progress()
logger.info(line)
proc.communicate()
proc.wait()
if proc.returncode:
if raise_on_returncode:
if all_output:
logger.notify('Complete output from command %s:' % cmd_desc)
logger.notify('\n'.join(all_output) + '\n----------------------------------------')
raise OSError(
&Command %s failed with error code %s&
% (cmd_desc, proc.returncode))
logger.warn(
&Command %s had error code %s&
% (cmd_desc, proc.returncode))
def create_environment(home_dir, site_packages=False, clear=False,
unzip_setuptools=False, use_distribute=False,
prompt=None, search_dirs=None, never_download=False):
Creates a new environment in ``home_dir``.
If ``site_packages`` is true, then the global ``site-packages/``
directory will be on the path.
If ``clear`` is true (default False) then the environment will
first be cleared.
home_dir, lib_dir, inc_dir, bin_dir = path_locations(home_dir)
py_executable = os.path.abspath(install_python(
home_dir, lib_dir, inc_dir, bin_dir,
site_packages=site_packages, clear=clear))
install_distutils(home_dir)
if use_distribute:
install_distribute(py_executable, unzip=unzip_setuptools,
search_dirs=search_dirs, never_download=never_download)
install_setuptools(py_executable, unzip=unzip_setuptools,
search_dirs=search_dirs, never_download=never_download)
install_pip(py_executable, search_dirs=search_dirs, never_download=never_download)
install_activate(home_dir, bin_dir, prompt)
def is_executable_file(fpath):
return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
def path_locations(home_dir):
&&&Return the path locations for the environment (where libraries are,
where scripts go, etc)&&&
# XXX: We'd use distutils.sysconfig.get_python_inc/lib but its
# prefix arg is broken: http://bugs.python.org/issue3386
if is_win:
# Windows has lots of problems with executables with spaces in
# this function will remove them (using the ~1
# format):
mkdir(home_dir)
if ' ' in home_dir:
import win32api
except ImportError:
print('Error: the path &%s& has a space in it' % home_dir)
print('To handle these kinds of paths, the win32api module must be installed:')
print('
http://sourceforge.net/projects/pywin32/')
sys.exit(3)
home_dir = win32api.GetShortPathName(home_dir)
lib_dir = join(home_dir, 'Lib')
inc_dir = join(home_dir, 'Include')
bin_dir = join(home_dir, 'Scripts')
if is_jython:
lib_dir = join(home_dir, 'Lib')
inc_dir = join(home_dir, 'Include')
bin_dir = join(home_dir, 'bin')
elif is_pypy:
lib_dir = home_dir
inc_dir = join(home_dir, 'include')
bin_dir = join(home_dir, 'bin')
elif not is_win:
lib_dir = join(home_dir, 'lib', py_version)
multiarch_exec = '/usr/bin/multiarch-platform'
if is_executable_file(multiarch_exec):
# In Mageia (2) and Mandriva distros the include dir must be like:
# virtualenv/include/multiarch-x86_64-linux/python2.7
# instead of being virtualenv/include/python2.7
p = subprocess.Popen(multiarch_exec, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
# stdout.strip is needed to remove newline character
inc_dir = join(home_dir, 'include', stdout.strip(), py_version + abiflags)
inc_dir = join(home_dir, 'include', py_version + abiflags)
bin_dir = join(home_dir, 'bin')
return home_dir, lib_dir, inc_dir, bin_dir
def change_prefix(filename, dst_prefix):
prefixes = [sys.prefix]
if is_darwin:
prefixes.extend((
os.path.join(&/Library/Python&, sys.version[:3], &site-packages&),
os.path.join(sys.prefix, &Extras&, &lib&, &python&),
os.path.join(&~&, &Library&, &Python&, sys.version[:3], &site-packages&),
# Python 2.6 no-frameworks
os.path.join(&~&, &.local&, &lib&, &python&, sys.version[:3], &site-packages&),
# System Python 2.7 on OSX Mountain Lion
os.path.join(&~&, &Library&, &Python&, sys.version[:3], &lib&, &python&, &site-packages&)))
if hasattr(sys, 'real_prefix'):
prefixes.append(sys.real_prefix)
prefixes = list(map(os.path.expanduser, prefixes))
prefixes = list(map(os.path.abspath, prefixes))
filename = os.path.abspath(filename)
for src_prefix in prefixes:
if filename.startswith(src_prefix):
_, relpath = filename.split(src_prefix, 1)
if src_prefix != os.sep:
# sys.prefix == &/&
assert relpath[0] == os.sep
relpath = relpath[1:]
return join(dst_prefix, relpath)
assert False, &Filename %s does not start with any of these prefixes: %s& % \
(filename, prefixes)
def copy_required_modules(dst_prefix):
import imp
# If we are running under -p, we need to remove the current
# directory from sys.path temporarily here, so that we
# definitely get the modules from the site directory of
# the interpreter we are running under, not the one
# virtualenv.py is installed under (which might lead to py2/py3
# incompatibility issues)
_prev_sys_path = sys.path
if os.environ.get('VIRTUALENV_INTERPRETER_RUNNING'):
sys.path = sys.path[1:]
for modname in REQUIRED_MODULES:
if modname in sys.builtin_module_names:
logger.info(&Ignoring built-in bootstrap module: %s& % modname)
f, filename, _ = imp.find_module(modname)
except ImportError:
logger.info(&Cannot import bootstrap module: %s& % modname)
if f is not None:
dst_filename = change_prefix(filename, dst_prefix)
copyfile(filename, dst_filename)
if filename.endswith('.pyc'):
pyfile = filename[:-1]
if os.path.exists(pyfile):
copyfile(pyfile, dst_filename[:-1])
sys.path = _prev_sys_path
def install_python(home_dir, lib_dir, inc_dir, bin_dir, site_packages, clear):
&&&Install just the base environment, no distutils patches etc&&&
if sys.executable.startswith(bin_dir):
print('Please use the *system* python to run this script')
rmtree(lib_dir)
# # FIXME: why not delete it?
# # Maybe it should delete everything with #!/path/to/venv/python in it
logger.notify('Not deleting %s', bin_dir)
if hasattr(sys, 'real_prefix'):
logger.notify('Using real prefix %r' % sys.real_prefix)
prefix = sys.real_prefix
prefix = sys.prefix
mkdir(lib_dir)
fix_lib64(lib_dir)
stdlib_dirs = [os.path.dirname(os.__file__)]
if is_win:
stdlib_dirs.append(join(os.path.dirname(stdlib_dirs[0]), 'DLLs'))
elif is_darwin:
stdlib_dirs.append(join(stdlib_dirs[0], 'site-packages'))
if hasattr(os, 'symlink'):
logger.info('Symlinking Python bootstrap modules')
logger.info('Copying Python bootstrap modules')
logger.indent += 2
# copy required files...
for stdlib_dir in stdlib_dirs:
if not os.path.isdir(stdlib_dir):
for fn in os.listdir(stdlib_dir):
bn = os.path.splitext(fn)[0]
if fn != 'site-packages' and bn in REQUIRED_FILES:
copyfile(join(stdlib_dir, fn), join(lib_dir, fn))
# ...and modules
copy_required_modules(home_dir)
logger.indent -= 2
mkdir(join(lib_dir, 'site-packages'))
import site
site_filename = site.__file__
if site_filename.endswith('.pyc'):
site_filename = site_filename[:-1]
elif site_filename.endswith('$py.class'):
site_filename = site_filename.replace('$py.class', '.py')
site_filename_dst = change_prefix(site_filename, home_dir)
site_dir = os.path.dirname(site_filename_dst)
writefile(site_filename_dst, SITE_PY)
writefile(join(site_dir, 'orig-prefix.txt'), prefix)
site_packages_filename = join(site_dir, 'no-global-site-packages.txt')
if not site_packages:
writefile(site_packages_filename, '')
if is_pypy or is_win:
stdinc_dir = join(prefix, 'include')
stdinc_dir = join(prefix, 'include', py_version + abiflags)
if os.path.exists(stdinc_dir):
copyfile(stdinc_dir, inc_dir)
logger.debug('No include dir %s' % stdinc_dir)
# pypy never uses exec_prefix, just ignore it
if sys.exec_prefix != prefix and not is_pypy:
if is_win:
exec_dir = join(sys.exec_prefix, 'lib')
elif is_jython:
exec_dir = join(sys.exec_prefix, 'Lib')
exec_dir = join(sys.exec_prefix, 'lib', py_version)
for fn in os.listdir(exec_dir):
copyfile(join(exec_dir, fn), join(lib_dir, fn))
if is_jython:
# Jython has either jython-dev.jar and javalib/ dir, or just
# jython.jar
for name in 'jython-dev.jar', 'javalib', 'jython.jar':
src = join(prefix, name)
if os.path.exists(src):
copyfile(src, join(home_dir, name))
# XXX: registry should always exist after Jython 2.5rc1
src = join(prefix, 'registry')
if os.path.exists(src):
copyfile(src, join(home_dir, 'registry'), symlink=False)
copyfile(join(prefix, 'cachedir'), join(home_dir, 'cachedir'),
symlink=False)
mkdir(bin_dir)
py_executable = join(bin_dir, os.path.basename(sys.executable))
if 'Python.framework' in prefix:
# OS X framework builds cause validation to break
# https://github.com/pypa/virtualenv/issues/322
if os.environ.get('__PYVENV_LAUNCHER__'):
os.unsetenv('__PYVENV_LAUNCHER__')
if re.search(r'/Python(?:-32|-64)*$', py_executable):
# The name of the python executable is not quite what
# we want, rename it.
py_executable = os.path.join(
os.path.dirname(py_executable), 'python')
logger.notify('New %s executable in %s', expected_exe, py_executable)
pcbuild_dir = os.path.dirname(sys.executable)
pyd_pth = os.path.join(lib_dir, 'site-packages', 'virtualenv_builddir_pyd.pth')
if is_win and os.path.exists(os.path.join(pcbuild_dir, 'build.bat')):
logger.notify('Detected python running from build directory %s', pcbuild_dir)
logger.notify('Writing .pth file linking to build directory for *.pyd files')
writefile(pyd_pth, pcbuild_dir)
pcbuild_dir = None
if os.path.exists(pyd_pth):
logger.info('Deleting %s (not Windows env or not build directory python)' % pyd_pth)
os.unlink(pyd_pth)
if sys.executable != py_executable:
# # FIXME: could I just hard link?
executable = sys.executable
if is_cygwin and os.path.exists(executable + '.exe'):
# Cygwin misreports sys.executable sometimes
executable += '.exe'
py_executable += '.exe'
logger.info('Executable actually exists in %s' % executable)
shutil.copyfile(executable, py_executable)
make_exe(py_executable)
if is_win or is_cygwin:
pythonw = os.path.join(os.path.dirname(sys.executable), 'pythonw.exe')
if os.path.exists(pythonw):
logger.info('Also created pythonw.exe')
shutil.copyfile(pythonw, os.path.join(os.path.dirname(py_executable), 'pythonw.exe'))
python_d = os.path.join(os.path.dirname(sys.executable), 'python_d.exe')
python_d_dest = os.path.join(os.path.dirname(py_executable), 'python_d.exe')
if os.path.exists(python_d):
logger.info('Also created python_d.exe')
shutil.copyfile(python_d, python_d_dest)
elif os.path.exists(python_d_dest):
logger.info('Removed python_d.exe as it is no longer at the source')
os.unlink(python_d_dest)
# we need to copy the DLL to enforce that windows will load the correct one.
# may not exist if we are cygwin.
py_executable_dll = 'python%s%s.dll' % (
sys.version_info[0], sys.version_info[1])
py_executable_dll_d = 'python%s%s_d.dll' % (
sys.version_info[0], sys.version_info[1])
pythondll = os.path.join(os.path.dirname(sys.executable), py_executable_dll)
pythondll_d = os.path.join(os.path.dirname(sys.executable), py_executable_dll_d)
pythondll_d_dest = os.path.join(os.path.dirname(py_executable), py_executable_dll_d)
if os.path.exists(pythondll):
logger.info('Also created %s' % py_executable_dll)
shutil.copyfile(pythondll, os.path.join(os.path.dirname(py_executable), py_executable_dll))
if os.path.exists(pythondll_d):
logger.info('Also created %s' % py_executable_dll_d)
shutil.copyfile(pythondll_d, pythondll_d_dest)
elif os.path.exists(pythondll_d_dest):
logger.info('Removed %s as the source does not exist' % pythondll_d_dest)
os.unlink(pythondll_d_dest)
if is_pypy:
# make a symlink python --& pypy-c
python_executable = os.path.join(os.path.dirname(py_executable), 'python')
if sys.platform in ('win32', 'cygwin'):
python_executable += '.exe'
logger.info('Also created executable %s' % python_executable)
copyfile(py_executable, python_executable)
if is_win:
for name in 'libexpat.dll', 'libpypy.dll', 'libpypy-c.dll', 'libeay32.dll', 'ssleay32.dll', 'sqlite.dll':
src = join(prefix, name)
if os.path.exists(src):
copyfile(src, join(bin_dir, name))
if os.path.splitext(os.path.basename(py_executable))[0] != expected_exe:
secondary_exe = os.path.join(os.path.dirname(py_executable),
expected_exe)
py_executable_ext = os.path.splitext(py_executable)[1]
if py_executable_ext == '.exe':
# python2.4 gives an extension of '.4' :P
secondary_exe += py_executable_ext
if os.path.exists(secondary_exe):
logger.warn('Not overwriting existing %s script %s (you must use %s)'
% (expected_exe, secondary_exe, py_executable))
logger.notify('Also creating executable in %s' % secondary_exe)
shutil.copyfile(sys.executable, secondary_exe)
make_exe(secondary_exe)
if '.framework' in prefix:
if 'Python.framework' in prefix:
logger.debug('MacOSX Python framework detected')
# Make sure we use the the embedded interpreter inside
# the framework, even if sys.executable points to
# the stub executable in ${sys.prefix}/bin
# See http://groups.google.com/group/python-virtualenv/
browse_thread/thread/17cab2f85da75951
original_python = os.path.join(
prefix, 'Resources/Python.app/Contents/MacOS/Python')
if 'EPD' in prefix:
logger.debug('EPD framework detected')
original_python = os.path.join(prefix, 'bin/python')
shutil.copy(original_python, py_executable)
# Copy the framework's dylib into the virtual
# environment
virtual_lib = os.path.join(home_dir, '.Python')
if os.path.exists(virtual_lib):
os.unlink(virtual_lib)
os.path.join(prefix, 'Python'),
virtual_lib)
# And then change the install_name of the copied python executable
mach_o_change(py_executable,
os.path.join(prefix, 'Python'),
'@executable_path/../.Python')
e = sys.exc_info()[1]
logger.warn(&Could not call mach_o_change: %s. &
&Trying to call install_name_tool instead.& % e)
call_subprocess(
[&install_name_tool&, &-change&,
os.path.join(prefix, 'Python'),
'@executable_path/../.Python',
py_executable])
logger.fatal(&Could not call install_name_tool -- you must &
&have Apple's development tools installed&)
# Some tools depend on pythonX.Y being present
py_executable_version = '%s.%s' % (
sys.version_info[0], sys.version_info[1])
if not py_executable.endswith(py_executable_version):
# symlinking pythonX.Y & python
pth = py_executable + '%s.%s' % (
sys.version_info[0], sys.version_info[1])
if os.path.exists(pth):
os.unlink(pth)
os.symlink('python', pth)
# reverse symlinking python -& pythonX.Y (with --python)
pth = join(bin_dir, 'python')
if os.path.exists(pth):
os.unlink(pth)
os.symlink(os.path.basename(py_executable), pth)
if is_win and ' ' in py_executable:
# There's a bug with subprocess on Windows when using a first
# argument that has a space in it.
Instead we have to quote
# the value:
py_executable = '&%s&' % py_executable
# NOTE: keep this check as one line, cmd.exe doesn't cope with line breaks
cmd = [py_executable, '-c', 'out=sys.'
'getattr(out, &buffer&, out).write(sys.prefix.encode(&utf-8&))']
logger.info('Testing executable with %s %s &%s&' % tuple(cmd))
proc = subprocess.Popen(cmd,
stdout=subprocess.PIPE)
proc_stdout, proc_stderr = proc.communicate()
except OSError:
e = sys.exc_info()[1]
if e.errno == errno.EACCES:
logger.fatal('ERROR: The executable %s could not be run: %s' % (py_executable, e))
sys.exit(100)
proc_stdout = proc_stdout.strip().decode(&utf-8&)
proc_stdout = os.path.normcase(os.path.abspath(proc_stdout))
norm_home_dir = os.path.normcase(os.path.abspath(home_dir))
if hasattr(norm_home_dir, 'decode'):
norm_home_dir = norm_home_dir.decode(sys.getfilesystemencoding())
if proc_stdout != norm_home_dir:
logger.fatal(
'ERROR: The executable %s is not functioning' % py_executable)
logger.fatal(
'ERROR: It thinks sys.prefix is %r (should be %r)'
% (proc_stdout, norm_home_dir))
logger.fatal(
'ERROR: virtualenv is not compatible with this system or executable')
if is_win:
logger.fatal(
'Note: some Windows users have reported this error when they '
'installed Python for &Only this user& or have multiple '
'versions of Python installed. Copying the appropriate '
'PythonXX.dll to the virtualenv Scripts/ directory may fix '
'this problem.')
sys.exit(100)
logger.info('Got sys.prefix result: %r' % proc_stdout)
pydistutils = os.path.expanduser('~/.pydistutils.cfg')
if os.path.exists(pydistutils):
logger.notify('Please make sure you remove any previous custom paths from '
'your %s file.' % pydistutils)
# # FIXME: really this should be calculated earlier
fix_local_scheme(home_dir)
if site_packages:
if os.path.exists(site_packages_filename):
logger.info('Deleting %s' % site_packages_filename)
os.unlink(site_packages_filename)
return py_executable
def install_activate(home_dir, bin_dir, prompt=None):
home_dir = os.path.abspath(home_dir)
if is_win or is_jython and os._name == 'nt':
'activate.bat': ACTIVATE_BAT,
'deactivate.bat': DEACTIVATE_BAT,
'activate.ps1': ACTIVATE_PS,
# MSYS needs paths of the form /c/path/to/file
drive, tail = os.path.splitdrive(home_dir.replace(os.sep, '/'))
home_dir_msys = (drive and &/%s%s& or &%s%s&) % (drive[:1], tail)
# Run-time conditional enables (basic) Cygwin compatibility
home_dir_sh = (&&&$(if [ &$OSTYPE& &==& &cygwin& ]; then cygpath -u '%s'; else echo '%s';)&&& %
(home_dir, home_dir_msys))
files['activate'] = ACTIVATE_SH.replace('__VIRTUAL_ENV__', home_dir_sh)
files = {'activate': ACTIVATE_SH}
# suppling activate.fish in addition to, not instead of, the
# bash script support.
files['activate.fish'] = ACTIVATE_FISH
# same for csh/tcsh support...
files['activate.csh'] = ACTIVATE_CSH
files['activate_this.py'] = ACTIVATE_THIS
if hasattr(home_dir, 'decode'):
home_dir = home_dir.decode(sys.getfilesystemencoding())
vname = os.path.basename(home_dir)
for name, content in files.items():
content = content.replace('__VIRTUAL_PROMPT__', prompt or '')
content = content.replace('__VIRTUAL_WINPROMPT__', prompt or '(%s)' % vname)
content = content.replace('__VIRTUAL_ENV__', home_dir)
content = content.replace('__VIRTUAL_NAME__', vname)
content = content.replace('__BIN_NAME__', os.path.basename(bin_dir))
writefile(os.path.join(bin_dir, name), content)
def install_distutils(home_dir):
distutils_path = change_prefix(distutils.__path__[0], home_dir)
mkdir(distutils_path)
# # FIXME: maybe this prefix setting should only be put in place if
# # there's a local distutils.cfg with a prefix setting?
home_dir = os.path.abspath(home_dir)
# # FIXME: this is breaking things, removing for now:
# distutils_cfg = DISTUTILS_CFG + &\n[install]\nprefix=%s\n& % home_dir
writefile(os.path.join(distutils_path, '__init__.py'), DISTUTILS_INIT)
writefile(os.path.join(distutils_path, 'distutils.cfg'), DISTUTILS_CFG, overwrite=False)
def fix_local_scheme(home_dir):
Platforms that use the &posix_local& install scheme (like Ubuntu with
Python 2.7) need to be given an additional &local& location, sigh.
import sysconfig
except ImportError:
if sysconfig._get_default_scheme() == 'posix_local':
local_path = os.path.join(home_dir, 'local')
if not os.path.exists(local_path):
os.mkdir(local_path)
for subdir_name in os.listdir(home_dir):
if subdir_name == 'local':
os.symlink(os.path.abspath(os.path.join(home_dir, subdir_name)), \
os.path.join(local_path, subdir_name))
def fix_lib64(lib_dir):
Some platforms (particularly Gentoo on x64) put things in lib64/pythonX.Y
instead of lib/pythonX.Y.
If this is such a platform we'll just create a
symlink so lib64 points to lib
if [p for p in distutils.sysconfig.get_config_vars().values()
if isinstance(p, basestring) and 'lib64' in p]:
logger.debug('This system uses lib64; symlinking lib64 to lib')
assert os.path.basename(lib_dir) == 'python%s' % sys.version[:3], (
&Unexpected python lib dir: %r& % lib_dir)
lib_parent = os.path.dirname(lib_dir)
assert os.path.basename(lib_parent) == 'lib', (
&Unexpected parent dir: %r& % lib_parent)
os.symlink(os.path.join('.', os.path.basename(lib_parent)),
os.path.join(os.path.dirname(lib_parent), 'lib64'))
def resolve_interpreter(exe):
If the executable given isn't an absolute path, search $PATH for the interpreter
if os.path.abspath(exe) != exe:
paths = os.environ.get('PATH', '').split(os.pathsep)
for path in paths:
if os.path.exists(os.path.join(path, exe)):
exe = os.path.join(path, exe)
if not os.path.exists(exe):
logger.fatal('The executable %s (from --python=%s) does not exist' % (exe, exe))
raise SystemExit(3)
if not is_executable(exe):
logger.fatal('The executable %s (from --python=%s) is not executable' % (exe, exe))
raise SystemExit(3)
return exe
def is_executable(exe):
&&&Checks a file is executable&&&
return os.access(exe, os.X_OK)
############################################################
# # Relocating the environment:
def make_environment_relocatable(home_dir):
Makes the already-existing environment use relative paths, and takes out
the #!-based environment selection in scripts.
home_dir, lib_dir, inc_dir, bin_dir = path_locations(home_dir)
activate_this = os.path.join(bin_dir, 'activate_this.py')
if not os.path.exists(activate_this):
logger.fatal(
'The environment doesn\'t have a file %s -- please re-run virtualenv '
'on this environment to update it' % activate_this)
fixup_scripts(home_dir)
fixup_pth_and_egg_link(home_dir)
# # FIXME: need to fix up distutils.cfg
OK_ABS_SCRIPTS = ['python', 'python%s' % sys.version[:3],
'activate', 'activate.bat', 'activate_this.py']
def fixup_scripts(home_dir):
# This is what we expect at the top of scripts:
shebang = '#!%s/bin/python' % os.path.normcase(os.path.abspath(home_dir))
# This is what we'll put:
new_shebang = '#!/usr/bin/env python%s' % sys.version[:3]
if is_win:
bin_suffix = 'Scripts'
bin_suffix = 'bin'
bin_dir = os.path.join(home_dir, bin_suffix)
home_dir, lib_dir, inc_dir, bin_dir = path_locations(home_dir)
for filename in os.listdir(bin_dir):
filename = os.path.join(bin_dir, filename)
if not os.path.isfile(filename):
# ignore subdirs, e.g. .svn ones.
f = open(filename, 'rb')
lines = f.read().decode('utf-8').splitlines()
except UnicodeDecodeError:
# This is probably a binary program instead
# of a script, so just ignore it.
if not lines:
logger.warn('Script %s is an empty file' % filename)
if not lines[0].strip().startswith(shebang):
if os.path.basename(filename) in OK_ABS_SCRIPTS:
logger.debug('Cannot make script %s relative' % filename)
elif lines[0].strip() == new_shebang:
logger.info('Script %s has already been made relative' % filename)
logger.warn('Script %s cannot be made relative (it\'s not a normal script that starts with %s)'
% (filename, shebang))
logger.notify('Making script %s relative' % filename)
script = relative_script([new_shebang] + lines[1:])
f = open(filename, 'wb')
f.write('\n'.join(script).encode('utf-8'))
def relative_script(lines):
&Return a script that'll work in a relocatable environment.&
activate = & activate_this=os.path.join(os.path.dirname(os.path.realpath(__file__)), 'activate_this.py'); execfile(activate_this, dict(__file__=activate_this)); del os, activate_this&
# Find the last future statement in the script. If we insert the activation
# line before a future statement, Python will raise a SyntaxError.
activate_at = None
for idx, line in reversed(list(enumerate(lines))):
if line.split()[:3] == ['from', '__future__', 'import']:
activate_at = idx + 1
if activate_at is None:
# Activate after the shebang.
activate_at = 1
return lines[:activate_at] + ['', activate, ''] + lines[activate_at:]
def fixup_pth_and_egg_link(home_dir, sys_path=None):
&&&Makes .pth and .egg-link files use relative paths&&&
home_dir = os.path.normcase(os.path.abspath(home_dir))
if sys_path is None:
sys_path = sys.path
for path in sys_path:
if not path:
path = '.'
if not os.path.isdir(path):
path = os.path.normcase(os.path.abspath(path))
if not path.startswith(home_dir):
logger.debug('Skipping system (non-environment) directory %s' % path)
for filename in os.listdir(path):
filename = os.path.join(path, filename)
if filename.endswith('.pth'):
if not os.access(filename, os.W_OK):
logger.warn('Cannot write .pth file %s, skipping' % filename)
fixup_pth_file(filename)
if filename.endswith('.egg-link'):
if not os.access(filename, os.W_OK):
logger.warn('Cannot write .egg-link file %s, skipping' % filename)
fixup_egg_link(filename)
def fixup_pth_file(filename):
lines = []
prev_lines = []
f = open(filename)
prev_lines = f.readlines()
for line in prev_lines:
line = line.strip()
if (not line or line.startswith('#') or line.startswith('import ')
or os.path.abspath(line) != line):
lines.append(line)
new_value = make_relative_path(filename, line)
if line != new_value:
logger.debug('Rewriting path %s as %s (in %s)' % (line, new_value, filename))
lines.append(new_value)
if lines == prev_lines:
logger.info('No changes to .pth file %s' % filename)
logger.notify('Making paths in .pth file %s relative' % filename)
f = open(filename, 'w')
f.write('\n'.join(lines) + '\n')
def fixup_egg_link(filename):
f = open(filename)
link = f.readline().strip()
if os.path.abspath(link) != link:
logger.debug('Link in %s already relative' % filename)
new_link = make_relative_path(filename, link)
logger.notify('Rewriting link %s in %s as %s' % (link, filename, new_link))
f = open(filename, 'w')
f.write(new_link)
def make_relative_path(source, dest, dest_is_directory=True):
Make a filename relative, where the filename is dest, and it is
being referred to from the filename source.
&&& make_relative_path('/usr/share/something/a-file.pth',
'/usr/share/another-place/src/Directory')
'../another-place/src/Directory'
&&& make_relative_path('/usr/share/something/a-file.pth',
'/home/user/src/Directory')
'../../../home/user/src/Directory'
&&& make_relative_path('/usr/share/a-file.pth', '/usr/share/')
'./'
source = os.path.dirname(source)
if not dest_is_directory:
dest_filename = os.path.basename(dest)
dest = os.path.dirname(dest)
dest = os.path.normpath(os.path.abspath(dest))
source = os.path.normpath(os.path.abspath(source))
dest_parts = dest.strip(os.path.sep).split(os.path.sep)
source_parts = source.strip(os.path.sep).split(os.path.sep)
while dest_parts and source_parts and dest_parts[0] == source_parts[0]:
dest_parts.pop(0)
source_parts.pop(0)
full_parts = ['..'] * len(source_parts) + dest_parts
if not dest_is_directory:
full_parts.append(dest_filename)
if not full_parts:
# Special case for the current directory (otherwise it'd be '')
return './'
return os.path.sep.join(full_parts)
############################################################
# # Bootstrap script creation:
def create_bootstrap_script(extra_text, python_version=''):
Creates a bootstrap script, which is like this script but with
extend_parser, adjust_options, and after_install hooks.
This returns a string that (written to disk of course) can be used
as a bootstrap script with your own customizations.
The script
will be the standard virtualenv.py script, with your extra text
added (your extra text should be Python code).
If you include these functions, they will be called:
``extend_parser(optparse_parser)``:
You can add or remove options from the parser here.
``adjust_options(options, args)``:
You can change options here, or change the args (if you accept
different kinds of arguments, be sure you modify ``args`` so it is
only ``[DEST_DIR]``).
``after_install(options, home_dir)``:
After everything is installed, this function is called.
is probably the function you are most likely to use.
example would be::
def after_install(options, home_dir):
subprocess.call([join(home_dir, 'bin', 'easy_install'),
'MyPackage'])
subprocess.call([join(home_dir, 'bin', 'my-package-script'),
'setup', home_dir])
This example immediately installs a package, and runs a setup
script from that package.
If you provide something like ``python_version='2.4'`` then the
script will start with ``#!/usr/bin/env python2.4`` instead of
``#!/usr/bin/env python``.
You can use this when the script must
be run with a particular Python version.
filename = __file__
if filename.endswith('.pyc'):
filename = filename[:-1]
f = codecs.open(filename, 'r', encoding='utf-8')
content = f.read()
py_exe = 'python%s' % python_version
content = (('#!/usr/bin/env %s\n' % py_exe)
+ '## WARNING: This file is generated\n'
+ content)
return content.replace('##EXT' 'END##', extra_text)
# #EXTEND##
def convert(s):
b = base64.b64decode(s.encode('ascii'))
return zlib.decompress(b).decode('utf-8')
# #file site.py
SITE_PY = convert(&&&
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