The Tor Browser: python/virtualenv/virtualenv_embedded/activate

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 """By using execfile(this_file, dict(__file__=this_file)) you will

     2 activate this virtualenv environment.

     4 This can be used when you must use an existing Python interpreter, not

     5 the virtualenv bin/python

     6 """

     8 try:

     9     __file__

    10 except NameError:

    11     raise AssertionError(

    12         "You must run this like execfile('path/to/activate_this.py', dict(__file__='path/to/activate_this.py'))")

    13 import sys

    14 import os

    16 old_os_path = os.environ['PATH']

    17 os.environ['PATH'] = os.path.dirname(os.path.abspath(__file__)) + os.pathsep + old_os_path

    18 base = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

    19 if sys.platform == 'win32':

    20     site_packages = os.path.join(base, 'Lib', 'site-packages')

    21 else:

    22     site_packages = os.path.join(base, 'lib', 'python%s' % sys.version[:3], 'site-packages')

    23 prev_sys_path = list(sys.path)

    24 import site

    25 site.addsitedir(site_packages)

    26 sys.real_prefix = sys.prefix

    27 sys.prefix = base

    28 # Move the added items to the front of the path:

    29 new_sys_path = []

    30 for item in list(sys.path):

    31     if item not in prev_sys_path:

    32         new_sys_path.append(item)

    33         sys.path.remove(item)

    34 sys.path[:0] = new_sys_path

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