3
g                 @   s   d dl Z d dlZd dlZd dlZd dlZd dlmZmZ e je	Z
ejdZedddZedddZedd	d
Zeee  dddZedddZedddZedddZdS )    N)ListOptionalz8include-system-site-packages\s*=\s*(?P<value>true|false))returnc               C   s   t jtt dt jkS )znChecks if sys.base_prefix and sys.prefix match.

    This handles PEP 405 compliant virtual environments.
    base_prefix)sysprefixgetattr r	   r	   \/var/www/tester-filtro-web/env/lib/python3.6/site-packages/pip/_internal/utils/virtualenv.py_running_under_venv   s    r   c               C   s
   t tdS )zmChecks if sys.real_prefix is set.

    This handles virtual environments created with pypa's virtualenv.
    Zreal_prefix)hasattrr   r	   r	   r	   r
   !_running_under_regular_virtualenv   s    r   c               C   s   t  p
t S )zBReturn True if we're running inside a virtualenv, False otherwise.)r   r   r	   r	   r	   r
   running_under_virtualenv   s    r   c              C   sN   t jjtjd} y$t| dd}|j j S Q R X W n tk
rH   dS X dS )zReads {sys.prefix}/pyvenv.cfg and returns its contents as list of lines

    Returns None, if it could not read/access the file.
    z
pyvenv.cfgzutf-8)encodingN)	ospathjoinr   r   openread
splitlinesOSError)Zpyvenv_cfg_filefr	   r	   r
   _get_pyvenv_cfg_lines$   s    r   c              C   sR   t  } | dkrtjd dS x0| D ](}tj|}|dk	r"|jddkr"dS q"W dS )aZ  Check `{sys.prefix}/pyvenv.cfg` for system site-packages inclusion

    PEP 405 specifies that when system site-packages are not supposed to be
    visible from a virtual environment, `pyvenv.cfg` must contain the following
    line:

        include-system-site-packages = false

    Additionally, log a warning if accessing the file fails.
    NzCould not access 'pyvenv.cfg' despite a virtual environment being active. Assuming global site-packages is not accessible in this environment.TvaluefalseF)r   loggerwarning#_INCLUDE_SYSTEM_SITE_PACKAGES_REGEXmatchgroup)Z	cfg_linesliner   r	   r	   r
   _no_global_under_venv3   s    

r!   c              C   s0   t jjt jjtj} t jj| d}t jj|S )zCheck if "no-global-site-packages.txt" exists beside site.py

    This mirrors logic in pypa/virtualenv for determining whether system
    site-packages are visible in the virtual environment.
    zno-global-site-packages.txt)r   r   dirnameabspathsite__file__r   exists)Zsite_mod_dirZno_global_site_packages_filer	   r	   r
   #_no_global_under_regular_virtualenvP   s
    r'   c               C   s   t  rt S t rt S dS )zHReturns a boolean, whether running in venv with no system site-packages.F)r   r!   r   r'   r	   r	   r	   r
   virtualenv_no_global^   s
    r(   )loggingr   rer$   r   typingr   r   	getLogger__name__r   compiler   boolr   r   r   strr   r!   r'   r(   r	   r	   r	   r
   <module>   s   
	