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Edit File: __init__.cpython-38.pyc
U ˧f V � @ s� d Z ddlZddlZddlZddlZddlZddlZddlZe�e �Z G dd� d�Z ddd�Z ddd �Z e d kr�d Zze � dZW n4 ek r� Z zed e ejd � W 5 dZ[X Y nX e�e� dS )z� Virtual environment (venv) package for Python. Based on PEP 405. Copyright (C) 2011-2014 Vinay Sajip. Licensed to the PSF under a contributor agreement. � Nc @ s� e Zd ZdZd dd�Zdd� Zdd � Zd d � Zd d � Ze j dkrLd dd�Z n d dd�Z dd� Z dd� Z dd� Zdd� Zdd� Zd d � ZdS )!� EnvBuildera� 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. FNc C s( || _ || _|| _|| _|| _|| _d S �N��system_site_packages�clear�symlinks�upgrade�with_pip�prompt)�selfr r r r r r � r �#/usr/lib/python3.8/venv/__init__.py�__init__+ s zEnvBuilder.__init__c C sx t j�|�}| �|�}| j}d| _| �|� | �|� | jrF| �|� | j s`| � |� | � |� |rtd| _| �|� dS )z� Create a virtual environment in a directory. :param env_dir: The target directory to create an environment in. 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Returns a context object which holds paths in the environment, for use by subsequent logic. c S s@ t j�| �st �| � n$t j�| �s0t j�| �r<td| ��d S )Nz Unable to create directory %r)r r �exists�makedirsr r � ValueError)�dr r r �create_if_needed^ s z7EnvBuilder.ensure_directories.<locals>.create_if_needed� Nz(%s) Zwin32ZScriptsZInclude�Libz site-packages�binZincludeZlibz python%d.%d� l �posix�darwinZlib64)r r r$ r r# �types�SimpleNamespacer �split�env_namer �sys�_base_executabler � executable� python_dirZ python_exe�platformr � version_infoZinc_path�maxsize�name�symlink�bin_path�bin_name�env_exe)r r r( r r r5 �dirnameZexenameZbinnameZincpathZlibpathr Z link_path�binpathr r r r V sL �� z EnvBuilder.ensure_directoriesc C s� t j�|jd� |_}t|ddd��j}|�d|j � | jrBd}nd}|�d| � |�d t j d d � � | j d k r�|�d | j �d �� W 5 Q R X d 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�utf-8)�encodingz home = %s ZtrueZfalsez"include-system-site-packages = %s zversion = %d.%d.%d N� z prompt = � ) r r r r Zcfg_path�open�writer6 r r3 r8 r )r r r �fZinclr r r r � s z EnvBuilder.create_configuration�ntc C s� | j }|s�zRtj�|�s\|rPtj�|�tj�|�ks:t�t�tj�|�|� n t�||� W n& tk r� t � d||� d}Y nX |r�t � ||� dS )�Y Try symlinking a file, and if that fails, fall back to copying. �Unable 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 C s| t j�|�ot j�|� }| jr�|s�t j�|�s�zH|rht j�|�t j�|�ksRt�t �t j� |�|� n t �||� W dS t k r� t � d||� Y nX t j� t j� |��\}}t j�t j�t�dd|| �}t�d�s�t j�|��sD|�d��r d| }|dd� }|dk�rd }n|d k�r(d }t j�t j�|�|| �}n|}t j�|��sl|�sht � d |� dS t�||� dS ) rJ NrK �scriptsrI TZ_d����pythonZ venvlauncherZpythonwZ venvwlauncherzUnable to copy %r)r r �lexistsr$ r r r? rL r; rM rN rO rP �splitextr �__file__� sysconfig�is_python_buildr �endswithr! rQ )r rR rS rT Zbad_srcrM ZextZsrcfnr r r rU � s> � c C s� |j }|j}| j}|j}tjdkr�||j|� tj�|�sFt� |d� dD ]F}tj� ||�}tj� |�sJ||j|dd� tj�|�sJt� |d� qJ�n | j r�dd� t� |�D �}t�d�r�dd� |D �}n d d d d g}|D ]2}tj� ||�}tj�|�r�||tj� ||�� q�t�d��r�t�|j�D ]z\} } } d | k�r&tj�| �} tj� |jd| �} tj� | ��spt�| � tj� | d �}tj� | d �} t�|| � �q��q&dS )z� Set up a Python executable in the environment. :param context: The information for the environment creation request being processed. rI i� )rX Zpython3T)rT c S s, g | ]$}t j�t j�|�d �dkr|�qS )r) )�.exez.dll)r r �normcaserZ ��.0rH r r r � <listcomp>� s �z+EnvBuilder.setup_python.<locals>.<listcomp>c S s" g | ]}t j�|��d �r|�qS ))rX Z vcruntime)r r r` � startswithra r r r rc s �z python.exez python_d.exez pythonw.exez pythonw_d.exezinit.tclr* N)r< r> rU r6 r r: r5 r r �chmodr r$ r r r\ r] rY �walkrM r r% r! rQ )r r r@ r Zcopierr? �suffix�suffixesrR �root�dirs�filesZtcldirrS r r r r � sP � �� zEnvBuilder.setup_pythonc C s~ |j ddddg}ztj|tjdd� W nR tjk rx t�d�}tj� |� d��srt d � t� � |�� t �d � � Y nX d S ) z1Installs or upgrades pip in a virtual environmentz-ImZ ensurepip� --upgradez --default-pipT)�stderrZuniversal_newlines�stdlibz/ensurepip/__main__.pyan 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 install python{}-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_outputZSTDOUTZCalledProcessErrorr\ Zget_pathr r r$ �print�formatZget_python_versionr3 �exit)r r �cmdrn r r r r s$ � � � zEnvBuilder._setup_pipc C s2 t j�t j�t��}t j�|d�}| �||� dS )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. 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Z __VENV_DIR__Z __VENV_NAME__Z__VENV_PROMPT__Z__VENV_BIN_NAME__Z__VENV_PYTHON__)�replacer r2 r r= r> )r �textr r r r �replace_variablesT s z EnvBuilder.replace_variablesc C s� |j }t|�}t�|�D �]�\}}}||krX|dd� D ] }|dtjfkr8|�|� q8q|D �]H} tjdkr�| �d�r�| �d�r�q\tj� || �} ||d� � tj �dd� } | s�|} ntjj |f| �� } tj� | �s�t� | � tj� | | �} t| d��} | �� }W 5 Q R X | �d��srz$|�d�}| �||�}|�d�}W n6 tk �rp } zd}t�d | |� W 5 d}~X Y nX |dk r\t| d ��} | �|� W 5 Q R X t�| | � q\qdS ) 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. 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