annotate planemo/lib/python3.7/site-packages/pip/_internal/utils/virtualenv.py @ 1:56ad4e20f292 draft

"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1 import os.path
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2 import site
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3 import sys
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6 def running_under_virtualenv():
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7 # type: () -> bool
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8 """
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9 Return True if we're running inside a virtualenv, False otherwise.
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10
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11 """
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12 if hasattr(sys, 'real_prefix'):
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13 # pypa/virtualenv case
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14 return True
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15 elif sys.prefix != getattr(sys, "base_prefix", sys.prefix):
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16 # PEP 405 venv
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17 return True
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18
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19 return False
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20
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21
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22 def virtualenv_no_global():
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23 # type: () -> bool
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24 """
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25 Return True if in a venv and no system site packages.
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26 """
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27 # this mirrors the logic in virtualenv.py for locating the
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28 # no-global-site-packages.txt file
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29 site_mod_dir = os.path.dirname(os.path.abspath(site.__file__))
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30 no_global_file = os.path.join(site_mod_dir, 'no-global-site-packages.txt')
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31 if running_under_virtualenv() and os.path.isfile(no_global_file):
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32 return True
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33 else:
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34 return False