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Without forgetting # past commands the $PATH changes we made may not be respected if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then hash -r fi if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then PS1="${_OLD_VIRTUAL_PS1:-}" export PS1 unset _OLD_VIRTUAL_PS1 fi unset VIRTUAL_ENV if [ ! "$1" = "nondestructive" ] ; then # Self destruct! unset -f deactivate fi } # unset irrelevant variables deactivate nondestructive VIRTUAL_ENV="__VENV_DIR__" export VIRTUAL_ENV _OLD_VIRTUAL_PATH="$PATH" PATH="$VIRTUAL_ENV/__VENV_BIN_NAME__:$PATH" export PATH # unset PYTHONHOME if set # this will fail if PYTHONHOME is set to the empty string (which is bad anyway) # could use `if (set -u; : $PYTHONHOME) ;` in bash if [ -n "${PYTHONHOME:-}" ] ; then _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}" unset PYTHONHOME fi if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then _OLD_VIRTUAL_PS1="${PS1:-}" if [ "x__VENV_PROMPT__" != x ] ; then PS1="__VENV_PROMPT__${PS1:-}" else if [ "`basename \"$VIRTUAL_ENV\"`" = "__" ] ; then # special case for Aspen magic directories # see http://www.zetadev.com/software/aspen/ PS1="[`basename \`dirname \"$VIRTUAL_ENV\"\``] $PS1" else PS1="(`basename \"$VIRTUAL_ENV\"`)$PS1" fi fi export PS1 fi # This should detect bash and zsh, which have a hash command that must # be called to get it to forget past commands. Without forgetting # past commands the $PATH changes we made may not be respected if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then hash -r fi scripts/posix/activate.csh000064400000002374147204446410011710 0ustar00# This file must be used with "source bin/activate.csh" *from csh*. # You cannot run it directly. # Created by Davide Di Blasi . # Ported to Python 3.3 venv by Andrew Svetlov alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; test "\!:*" != "nondestructive" && unalias deactivate' # Unset irrelevant variables. deactivate nondestructive setenv VIRTUAL_ENV "__VENV_DIR__" set _OLD_VIRTUAL_PATH="$PATH" setenv PATH "$VIRTUAL_ENV/__VENV_BIN_NAME__:$PATH" set _OLD_VIRTUAL_PROMPT="$prompt" if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then if ("__VENV_NAME__" != "") then set env_name = "__VENV_NAME__" else if (`basename "VIRTUAL_ENV"` == "__") then # special case for Aspen magic directories # see http://www.zetadev.com/software/aspen/ set env_name = `basename \`dirname "$VIRTUAL_ENV"\`` else set env_name = `basename "$VIRTUAL_ENV"` endif endif set prompt = "[$env_name] $prompt" unset env_name endif alias pydoc python -m pydoc rehash scripts/posix/activate.fish000064400000004606147204446410012064 0ustar00# This file must be used with ". bin/activate.fish" *from fish* (http://fishshell.org) # you cannot run it directly function deactivate -d "Exit virtualenv and return to normal shell environment" # reset old environment variables if test -n "$_OLD_VIRTUAL_PATH" set -gx PATH $_OLD_VIRTUAL_PATH set -e _OLD_VIRTUAL_PATH end if test -n "$_OLD_VIRTUAL_PYTHONHOME" set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME set -e _OLD_VIRTUAL_PYTHONHOME end if test -n "$_OLD_FISH_PROMPT_OVERRIDE" functions -e fish_prompt set -e _OLD_FISH_PROMPT_OVERRIDE functions -c _old_fish_prompt fish_prompt functions -e _old_fish_prompt end set -e VIRTUAL_ENV if test "$argv[1]" != "nondestructive" # Self destruct! functions -e deactivate end end # unset irrelevant variables deactivate nondestructive set -gx VIRTUAL_ENV "__VENV_DIR__" set -gx _OLD_VIRTUAL_PATH $PATH set -gx PATH "$VIRTUAL_ENV/__VENV_BIN_NAME__" $PATH # unset PYTHONHOME if set if set -q PYTHONHOME set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME set -e PYTHONHOME end if test -z "$VIRTUAL_ENV_DISABLE_PROMPT" # fish uses a function instead of an env var to generate the prompt. # save the current fish_prompt function as the function _old_fish_prompt functions -c fish_prompt _old_fish_prompt # with the original prompt function renamed, we can override with our own. function fish_prompt # Save the return status of the last command set -l old_status $status # Prompt override? if test -n "__VENV_PROMPT__" printf "%s%s" "__VENV_PROMPT__" (set_color normal) else # ...Otherwise, prepend env set -l _checkbase (basename "$VIRTUAL_ENV") if test $_checkbase = "__" # special case for Aspen magic directories # see http://www.zetadev.com/software/aspen/ printf "%s[%s]%s " (set_color -b blue white) (basename (dirname "$VIRTUAL_ENV")) (set_color normal) else printf "%s(%s)%s" (set_color -b blue white) (basename "$VIRTUAL_ENV") (set_color normal) end end # Restore the return status of the previous command. echo "exit $old_status" | . _old_fish_prompt end set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV" end __init__.py000064400000044333147204446410006672 0ustar00""" Virtual environment (venv) package for Python. Based on PEP 405. Copyright (C) 2011-2014 Vinay Sajip. Licensed to the PSF under a contributor agreement. """ import logging import os import shutil import subprocess import sys import types logger = logging.getLogger(__name__) class EnvBuilder: """ This class exists to allow virtual environment creation to be customized. The constructor parameters determine the builder's behaviour when called upon to create a virtual environment. By default, the builder makes the system (global) site-packages dir *un*available to the created environment. If invoked using the Python -m option, the default is to use copying on Windows platforms but symlinks elsewhere. If instantiated some other way, the default is to *not* use symlinks. :param system_site_packages: If True, the system (global) site-packages dir is available to created environments. :param clear: If True, delete the contents of the environment directory if it already exists, before environment creation. :param symlinks: If True, attempt to symlink rather than copy files into virtual environment. :param upgrade: If True, upgrade an existing virtual environment. :param with_pip: If True, ensure pip is installed in the virtual environment :param prompt: Alternative terminal prefix for the environment. """ def __init__(self, system_site_packages=False, clear=False, symlinks=False, upgrade=False, with_pip=False, prompt=None): self.system_site_packages = system_site_packages self.clear = clear self.symlinks = symlinks self.upgrade = upgrade self.with_pip = with_pip self.prompt = prompt def create(self, env_dir): """ Create a virtual environment in a directory. :param env_dir: The target directory to create an environment in. """ env_dir = os.path.abspath(env_dir) context = self.ensure_directories(env_dir) # See issue 24875. We need system_site_packages to be False # until after pip is installed. true_system_site_packages = self.system_site_packages self.system_site_packages = False self.create_configuration(context) self.setup_python(context) if self.with_pip: self._setup_pip(context) if not self.upgrade: self.setup_scripts(context) self.post_setup(context) if true_system_site_packages: # We had set it to False before, now # restore it and rewrite the configuration self.system_site_packages = True self.create_configuration(context) def clear_directory(self, path): for fn in os.listdir(path): fn = os.path.join(path, fn) if os.path.islink(fn) or os.path.isfile(fn): os.remove(fn) elif os.path.isdir(fn): shutil.rmtree(fn) def ensure_directories(self, env_dir): """ Create the directories for the environment. Returns a context object which holds paths in the environment, for use by subsequent logic. """ def create_if_needed(d): if not os.path.exists(d): os.makedirs(d) elif os.path.islink(d) or os.path.isfile(d): raise ValueError('Unable to create directory %r' % d) if os.path.exists(env_dir) and self.clear: self.clear_directory(env_dir) context = types.SimpleNamespace() context.env_dir = env_dir context.env_name = os.path.split(env_dir)[1] prompt = self.prompt if self.prompt is not None else context.env_name context.prompt = '(%s) ' % prompt create_if_needed(env_dir) env = os.environ if sys.platform == 'darwin' and '__PYVENV_LAUNCHER__' in env: executable = os.environ['__PYVENV_LAUNCHER__'] else: executable = sys.executable dirname, exename = os.path.split(os.path.abspath(executable)) context.executable = executable context.python_dir = dirname context.python_exe = exename if sys.platform == 'win32': binname = 'Scripts' incpath = 'Include' libpath = os.path.join(env_dir, 'Lib', 'site-packages') else: binname = 'bin' incpath = 'include' libpath = os.path.join(env_dir, 'lib', 'python%d.%d' % sys.version_info[:2], 'site-packages') context.inc_path = path = os.path.join(env_dir, incpath) create_if_needed(path) create_if_needed(libpath) # Issue 21197: create lib64 as a symlink to lib on 64-bit non-OS X POSIX if ((sys.maxsize > 2**32) and (os.name == 'posix') and (sys.platform != 'darwin')): link_path = os.path.join(env_dir, 'lib64') if not os.path.exists(link_path): # Issue #21643 os.symlink('lib', link_path) context.bin_path = binpath = os.path.join(env_dir, binname) context.bin_name = binname context.env_exe = os.path.join(binpath, exename) create_if_needed(binpath) return context def create_configuration(self, context): """ Create a configuration file indicating where the environment's Python was copied from, and whether the system site-packages should be made available in the environment. :param context: The information for the environment creation request being processed. """ context.cfg_path = path = os.path.join(context.env_dir, 'pyvenv.cfg') with open(path, 'w', encoding='utf-8') as f: f.write('home = %s\n' % context.python_dir) if self.system_site_packages: incl = 'true' else: incl = 'false' f.write('include-system-site-packages = %s\n' % incl) f.write('version = %d.%d.%d\n' % sys.version_info[:3]) if os.name == 'nt': def include_binary(self, f): if f.endswith(('.pyd', '.dll')): result = True else: result = f.startswith('python') and f.endswith('.exe') return result def symlink_or_copy(self, src, dst, relative_symlinks_ok=False): """ Try symlinking a file, and if that fails, fall back to copying. """ force_copy = not self.symlinks if not force_copy: try: if not os.path.islink(dst): # can't link to itself! if relative_symlinks_ok: assert os.path.dirname(src) == os.path.dirname(dst) os.symlink(os.path.basename(src), dst) else: os.symlink(src, dst) except Exception: # may need to use a more specific exception logger.warning('Unable to symlink %r to %r', src, dst) force_copy = True if force_copy: shutil.copyfile(src, dst) def setup_python(self, context): """ Set up a Python executable in the environment. :param context: The information for the environment creation request being processed. """ binpath = context.bin_path path = context.env_exe copier = self.symlink_or_copy copier(context.executable, path) dirname = context.python_dir if os.name != 'nt': if not os.path.islink(path): os.chmod(path, 0o755) for suffix in ('python', 'python3'): path = os.path.join(binpath, suffix) if not os.path.exists(path): # Issue 18807: make copies if # symlinks are not wanted copier(context.env_exe, path, relative_symlinks_ok=True) if not os.path.islink(path): os.chmod(path, 0o755) else: subdir = 'DLLs' include = self.include_binary files = [f for f in os.listdir(dirname) if include(f)] for f in files: src = os.path.join(dirname, f) dst = os.path.join(binpath, f) if dst != context.env_exe: # already done, above copier(src, dst) dirname = os.path.join(dirname, subdir) if os.path.isdir(dirname): files = [f for f in os.listdir(dirname) if include(f)] for f in files: src = os.path.join(dirname, f) dst = os.path.join(binpath, f) copier(src, dst) # copy init.tcl over for root, dirs, files in os.walk(context.python_dir): if 'init.tcl' in files: tcldir = os.path.basename(root) tcldir = os.path.join(context.env_dir, 'Lib', tcldir) if not os.path.exists(tcldir): os.makedirs(tcldir) src = os.path.join(root, 'init.tcl') dst = os.path.join(tcldir, 'init.tcl') shutil.copyfile(src, dst) break def _setup_pip(self, context): """Installs or upgrades pip in a virtual environment""" # We run ensurepip in isolated mode to avoid side effects from # environment vars, the current directory and anything else # intended for the global Python environment cmd = [context.env_exe, '-Im', 'ensurepip', '--upgrade', '--default-pip'] subprocess.check_output(cmd, stderr=subprocess.STDOUT) def setup_scripts(self, context): """ Set up scripts into the created environment from a directory. This method installs the default scripts into the environment being created. You can prevent the default installation by overriding this method if you really need to, or if you need to specify a different location for the scripts to install. By default, the 'scripts' directory in the venv package is used as the source of scripts to install. """ path = os.path.abspath(os.path.dirname(__file__)) path = os.path.join(path, 'scripts') self.install_scripts(context, path) def post_setup(self, context): """ Hook for post-setup modification of the venv. Subclasses may install additional packages or scripts here, add activation shell scripts, etc. :param context: The information for the environment creation request being processed. """ pass def replace_variables(self, text, context): """ Replace variable placeholders in script text with context-specific variables. Return the text passed in , but with variables replaced. :param text: The text in which to replace placeholder variables. :param context: The information for the environment creation request being processed. """ text = text.replace('__VENV_DIR__', context.env_dir) text = text.replace('__VENV_NAME__', context.env_name) text = text.replace('__VENV_PROMPT__', context.prompt) text = text.replace('__VENV_BIN_NAME__', context.bin_name) text = text.replace('__VENV_PYTHON__', context.env_exe) return text def install_scripts(self, context, path): """ Install scripts into the created environment from a directory. :param context: The information for the environment creation request being processed. :param path: Absolute pathname of a directory containing script. Scripts in the 'common' subdirectory of this directory, and those in the directory named for the platform being run on, are installed in the created environment. Placeholder variables are replaced with environment- specific values. """ binpath = context.bin_path plen = len(path) for root, dirs, files in os.walk(path): if root == path: # at top-level, remove irrelevant dirs for d in dirs[:]: if d not in ('common', os.name): dirs.remove(d) continue # ignore files in top level for f in files: srcfile = os.path.join(root, f) suffix = root[plen:].split(os.sep)[2:] if not suffix: dstdir = binpath else: dstdir = os.path.join(binpath, *suffix) if not os.path.exists(dstdir): os.makedirs(dstdir) dstfile = os.path.join(dstdir, f) with open(srcfile, 'rb') as f: data = f.read() if not srcfile.endswith('.exe'): try: data = data.decode('utf-8') data = self.replace_variables(data, context) data = data.encode('utf-8') except UnicodeError as e: data = None logger.warning('unable to copy script %r, ' 'may be binary: %s', srcfile, e) if data is not None: with open(dstfile, 'wb') as f: f.write(data) shutil.copymode(srcfile, dstfile) def create(env_dir, system_site_packages=False, clear=False, symlinks=False, with_pip=False, prompt=None): """Create a virtual environment in a directory.""" builder = EnvBuilder(system_site_packages=system_site_packages, clear=clear, symlinks=symlinks, with_pip=with_pip, prompt=prompt) builder.create(env_dir) def main(args=None): compatible = True if sys.version_info < (3, 3): compatible = False elif not hasattr(sys, 'base_prefix'): compatible = False if not compatible: raise ValueError('This script is only for use with Python >= 3.3') else: import argparse parser = argparse.ArgumentParser(prog=__name__, description='Creates virtual Python ' 'environments in one or ' 'more target ' 'directories.', epilog='Once an environment has been ' 'created, you may wish to ' 'activate it, e.g. by ' 'sourcing an activate script ' 'in its bin directory.') parser.add_argument('dirs', metavar='ENV_DIR', nargs='+', help='A directory to create the environment in.') parser.add_argument('--system-site-packages', default=False, action='store_true', dest='system_site', help='Give the virtual environment access to the ' 'system site-packages dir.') if os.name == 'nt': use_symlinks = False else: use_symlinks = True group = parser.add_mutually_exclusive_group() group.add_argument('--symlinks', default=use_symlinks, action='store_true', dest='symlinks', help='Try to use symlinks rather than copies, ' 'when symlinks are not the default for ' 'the platform.') group.add_argument('--copies', default=not use_symlinks, action='store_false', dest='symlinks', help='Try to use copies rather than symlinks, ' 'even when symlinks are the default for ' 'the platform.') parser.add_argument('--clear', default=False, action='store_true', dest='clear', help='Delete the contents of the ' 'environment directory if it ' 'already exists, before ' 'environment creation.') parser.add_argument('--upgrade', default=False, action='store_true', dest='upgrade', help='Upgrade the environment ' 'directory to use this version ' 'of Python, assuming Python ' 'has been upgraded in-place.') parser.add_argument('--without-pip', dest='with_pip', default=True, action='store_false', help='Skips installing or upgrading pip in the ' 'virtual environment (pip is bootstrapped ' 'by default)') parser.add_argument('--prompt', help='Provides an alternative prompt prefix for ' 'this environment.') options = parser.parse_args(args) if options.upgrade and options.clear: raise ValueError('you cannot supply --upgrade and --clear together.') builder = EnvBuilder(system_site_packages=options.system_site, clear=options.clear, symlinks=options.symlinks, upgrade=options.upgrade, with_pip=options.with_pip, prompt=options.prompt) for d in options.dirs: builder.create(d) if __name__ == '__main__': rc = 1 try: main() rc = 0 except Exception as e: print('Error: %s' % e, file=sys.stderr) sys.exit(rc) __main__.py000064400000000221147204446410006637 0ustar00import sys from . import main rc = 1 try: main() rc = 0 except Exception as e: print('Error: %s' % e, file=sys.stderr) sys.exit(rc)