Current File : //snap/core/current/usr/lib/python3.5/venv/__pycache__/__init__.cpython-35.pyc
|�g]T � @ s d Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z e j e � Z
Gd d � d � Z d d d d d d � Z d d d � Z
e d
k rd Z y e
� d Z Wn< e k
rZ z e d e d
e j �WYd d Z [ Xn Xe j e � d S)a�
Virtual environment (venv) package for Python. Based on PEP 405.
Copyright (C) 2011-2014 Vinay Sajip.
Licensed to the PSF under a contributor agreement.
usage: python -m venv [-h] [--system-site-packages] [--symlinks] [--clear]
[--upgrade]
ENV_DIR [ENV_DIR ...]
Creates virtual Python environments in one or more target directories.
positional arguments:
ENV_DIR A directory to create the environment in.
optional arguments:
-h, --help show this help message and exit
--system-site-packages
Give the virtual environment access to the system
site-packages dir.
--symlinks Attempt to symlink rather than copy.
--clear Delete the contents of the environment directory if it
already exists, before environment creation.
--upgrade Upgrade the environment directory to use this version
of Python, assuming Python has been upgraded in-place.
--without-pip Skips installing or upgrading pip in the virtual
environment (pip is bootstrapped by default)
� Nc @ s� e Z d Z d Z d d d d d d d � Z d d � Z d d � Z d d
� Z d d � Z e j
d
k rx d d � Z d d d � Z d d � Z
d d � Z d d � Z d d � Z d d � Z d d � Z d S) �
EnvBuilderaR
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
Fc C s1 | | _ | | _ | | _ | | _ | | _ d S)N)�system_site_packages�clear�symlinks�upgrade�with_pip)�selfr r r r r � r �#/usr/lib/python3.5/venv/__init__.py�__init__@ s
zEnvBuilder.__init__c C sx t j j | � } | j | � } | j | � | j | � | j rQ | j | � | j st | j | � | j
| � d S)z�
Create a virtual environment in a directory.
:param env_dir: The target directory to create an environment in.
N) �os�path�abspath�ensure_directories�create_configuration� setup_pythonr �
_setup_pipr �
setup_scripts�
post_setup)r �env_dir�contextr r r
�createH s
zEnvBuilder.createc C s� x t j | � D]n } t j j | | � } t j j | � sO t j j | � r_ t j | � q t j j | � r t j | � q Wd S)N)
r �listdirr
�join�islink�isfile�remove�isdir�shutilZrmtree)r r
�fnr r r
�clear_directoryY s $zEnvBuilder.clear_directoryc C sE d d � } t j j | � r4 | j r4 | j | � t j � } | | _ t j j | � d | _ d | j | _
| | � t j } t j
d k r� d | k r� t j d } n t j } t j j t j j | � � \ } } | | _ | | _ | | _ t j
d k r.d } d } t j j | d
d � }
n8 d } d
} t j j | d d t j d d � d � }
t j j | | � | _ } | | � | |
� t j d k r�t j d k r�t j
d k r�t j j | d � } t j j | � s�t j d | � t j j | | � | _ }
| | _ t j j |
| � | _ | |
� | S)z�
Create the directories for the environment.
Returns a context object which holds paths in the environment,
for use by subsequent logic.
c S sZ t j j | � s" t j | � n4 t j j | � sF t j j | � rV t d | � � d S)Nz Unable to create directory %r)r r
�exists�makedirsr r �
ValueError)�dr r r
�create_if_neededi s $z7EnvBuilder.ensure_directories.<locals>.create_if_needed� z(%s) �darwinZ__PYVENV_LAUNCHER__Zwin32ZScriptsZInclude�Libz
site-packages�bin�includeZlibz python%d.%dN� � �posixZlib64l )r r
r! r r �types�SimpleNamespacer �split�env_name�prompt�environ�sys�platform�
executabler �
python_dirZ
python_exer � version_infoZinc_path�maxsize�name�symlink�bin_path�bin_name�env_exe)r r r% r �envr6 �dirnameZexenameZbinnameZincpathZlibpathr
Z link_path�binpathr r r
r a sL
$
z EnvBuilder.ensure_directoriesc C s� t j j | j d � | _ } t | d d d ��b } | j d | j � | j r] d } n d } | j d | � | j d t j
d
d � � Wd
QRXd
S) aA
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.
z
pyvenv.cfg�w�encodingzutf-8z
home = %s
ZtrueZfalsez"include-system-site-packages = %s
zversion = %d.%d.%d
N� ) r r
r r Zcfg_path�open�writer7 r r4 r8 )r r r
�fZinclr r r
r � s z EnvBuilder.create_configuration�ntc C s: | j d � r d } n | j d � o3 | j d � } | S)N�.pyd�.dllT�pythonz.exe)rI rJ )�endswith�
startswith)r rG �resultr r r
�include_binary� s zEnvBuilder.include_binaryc C s� | j } | s� yu t j j | � s� | rt t j j | � t j j | � k sU t � t j t j j | � | � n t j | | � Wn+ t k
r� t j
d | | � d } Yn X| r� t j | | � d S)zQ
Try symlinking a file, and if that fails, fall back to copying.
zUnable to symlink %r to %rTN)
r r r
r r@ �AssertionErrorr; �basename� Exception�logger�warningr �copyfile)r �src�dst�relative_symlinks_okZ
force_copyr r r
�symlink_or_copy� s
*
zEnvBuilder.symlink_or_copyc s� | j } | j } | j } | | j | � | j } t j d k r� t j j | � se t j | d � xBd D]e } t j j
| | � } t j j | � sl | | j | d d �t j j | � sl t j | d � ql Wn�d } | j � � f d d � t j
| � D� } xT | D]L } t j j
| | � }
t j j
| | � } | | j k r| |
| � qWt j j
| | � } t j j | � r�� f d
d � t j
| � D� } xE | D]= } t j j
| | � }
t j j
| | � } | |
| � q�Wx� t j | j � D]� \ } }
} d | k rt j j | � } t j j
| j d | � } t j j | � skt j | � t j j
| d � }
t j j
| d � } t j |
| � PqWd
S)z�
Set up a Python executable in the environment.
:param context: The information for the environment creation request
being processed.
rH i� rK �python3rX TZDLLsc s" g | ] } � | � r | � q Sr r )�.0rG )r* r r
�
<listcomp>� s z+EnvBuilder.setup_python.<locals>.<listcomp>c s" g | ] } � | � r | � q Sr r )r[ rG )r* r r
r\ � s zinit.tclr( N)zpythonrZ )r< r> rY r6 r7 r r: r
r �chmodr r! rO r r �walkrQ r r" r rU )r r rA r
Zcopierr@ �suffixZsubdir�filesrG rV rW �root�dirsZtcldirr )r* r
r � sN
"
"
"
zEnvBuilder.setup_pythonc C st | j d d d d g } y t j | d t j d d �Wn5 t j k
ro t d j | � � t j d � Yn Xd
S) z1Installs or upgrades pip in a virtual environmentz-ImZ ensurepipz --upgradez
--default-pip�stderrZuniversal_newlinesTaq The virtual environment was not created successfully because ensurepip is not
available. On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.
apt-get install python3-venv
You may need to use sudo with that command. After installing the python3-venv
package, recreate your virtual environment.
Failing command: {}
r& N) r> �
subprocessZ check_outputZSTDOUTZCalledProcessError�print�formatr4 �exit)r r �cmdr r r
r � s zEnvBuilder._setup_pipc C sG t j j t j j t � � } t j j | d � } | j | | � d S)a�
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.
ZscriptsN)r r
r r@ �__file__r �install_scripts)r r r
r r r
r s zEnvBuilder.setup_scriptsc C s d S)a
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.
Nr )r r r r r
r & s zEnvBuilder.post_setupc
s� d | j d | j d | j d | j d | j i } d d � } d d � } t j � | j } | j d
� ru | � n! | j d � r� | � n t j � � f d d
� | j � D� } x, | j � D] \ } } | j
| | � } q� W| S)ai
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.
Z __VENV_DIR__Z
__VENV_NAME__Z__VENV_PROMPT__Z__VENV_BIN_NAME__Z__VENV_PYTHON__c S s | j d d � } d j | � S)a�
This should satisfy PowerShell quoting rules [1], unless the quoted
string is passed directly to Windows native commands [2].
[1]: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_quoting_rules
[2]: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_parsing#passing-arguments-that-contain-quote-characters
�'z''z'{}')�replacerf )�sr r r
� quote_ps1C s z/EnvBuilder.replace_variables.<locals>.quote_ps1c S s | S)Nr )rm r r r
� quote_batM s z/EnvBuilder.replace_variables.<locals>.quote_batz.ps1z.batc s% i | ] \ } } � | � | � q Sr r )r[ �keyrm )�quoter r
�
<dictcomp>[ s z0EnvBuilder.replace_variables.<locals>.<dictcomp>) r r1 r2 r= r> �shlexrq � script_pathrL �itemsrl ) r �textr Z replacementsrn ro rt rp Zquotedr )rq r
�replace_variables0 s$
z EnvBuilder.replace_variablesc ! C s | j } t | � } xt j | � D]�\ } } } | | k r� x: | d d � D]( } | d t j f k rQ | j | � qQ Wq% x�| D]�} t j j | | � }
| | d � j t j � d d � } | s� | } n t j j | | � } t j j
| � s t j | � t j j | | � }
t |
d � � } | j
� } Wd QRX|
j d � r]d } nu d } |
| _ y% | j d � } | j | | � } Wn> t k
r�} z d } t j d |
| � WYd d } ~ Xn X| d k r� t |
| � � } | j | � Wd QRXt j |
|
� q� Wq% Wd S)
as
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.
N�commonr+ �rbz.exe�wbrB zutf-8z+unable to copy script %r, may be binary: %s)r< �lenr r^ r: r r
r r0 �sepr! r" rE �readrL rt �decoderw �UnicodeDecodeErrorrS rT rF r Zcopymode)r r r
rA Zplenra rb r` r$ rG Zsrcfiler_ ZdstdirZdstfile�data�mode�er r r
rj ` sD
&
zEnvBuilder.install_scriptsN)�__name__�
__module__� __qualname__�__doc__r r r r r r r: rO rY r r r r rw rj r r r r
r ( s 7 3
0r Fc C s2 t d | d | d | d | � } | j | � d S)aL
Create a virtual environment in a directory.
By default, makes the system (global) site-packages dir *un*available to
the created environment, and uses copying rather than symlinking for files
obtained from the source Python installation.
:param env_dir: The target directory to create an environment in.
:param system_site_packages: If True, the system (global) site-packages
dir is available to the environment.
: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 with_pip: If True, ensure pip is installed in the virtual
environment
r r r r N)r r )r r r r r �builderr r r
r � s r c C s" d } t j d, k r d } n t t d � s3 d } | sH t d � � n�d d l } | j d t d d d
d � } | j d d
d d d d d �| j d d d d d d d d d �t j d k r� d } n d } | j
� } | j d d | d d d d d d �| j d d | d d d d d d �| j d! d d d d d d" d d# �| j d$ d d d d d d% d d& �| j d' d d( d d d d d d) �| j | � } | j r�| j
r�t d* � � t d+ | j d" | j
d | j d% | j d( | j � } x | j D] } | j | � qWd S)-NTrD F� base_prefixz.This script is only for use with Python >= 3.3r �progZ descriptionzFCreates virtual Python environments in one or more target directories.Zepilogz|Once an environment has been created, you may wish to activate it, e.g. by sourcing an activate script in its bin directory.rb �metavarZENV_DIR�nargs�+�helpz)A directory to create the environment in.z--system-site-packages�default�action�
store_true�dest� system_sitezDGive the virtual environment access to the system site-packages dir.rH z
--symlinksr z[Try to use symlinks rather than copies, when symlinks are not the default for the platform.z--copiesZ store_falsez\Try to use copies rather than symlinks, even when symlinks are the default for the platform.z--clearr zcDelete the contents of the environment directory if it already exists, before environment creation.z --upgrader zlUpgrade the environment directory to use this version of Python, assuming Python has been upgraded in-place.z
--without-pipr z]Skips installing or upgrading pip in the virtual environment (pip is bootstrapped by default)z1you cannot supply --upgrade and --clear together.r )rD rD )r4 r8 �hasattrr# �argparse�ArgumentParserr� � add_argumentr r: Z add_mutually_exclusive_group�
parse_argsr r r r� r r rb r ) �argsZ
compatibler� �parserZ use_symlinks�groupZoptionsr� r$ r r r
�main� sV
r� �__main__r& z Error: %s�file)r� Zloggingr r rd r4 r. rs Z getLoggerr� rS r r r� ZrcrR r� re rc rg r r r r
�<module> s* � lD
*
Mini Shell