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import os
import subprocess
import sys
import re
def remove_setuptools():
"""
Remove setuptools from the current environment.
"""
print("Removing setuptools")
cmd = [sys.executable, '-m', 'pip', 'uninstall', '-y', 'setuptools']
# set cwd to something other than '.' to avoid detecting
# '.' as the installed package.
subprocess.check_call(cmd, cwd='.tox')
def bootstrap():
print("Running bootstrap")
cmd = [sys.executable, '-m', 'bootstrap']
subprocess.check_call(cmd)
def is_install_self(args):
"""
Do the args represent an install of .?
"""
def strip_extras(arg):
match = re.match(r'(.*)?\[.*\]$', arg)
return match.group(1) if match else arg
return (
'install' in args
and any(
arg in ['.', os.getcwd()]
for arg in map(strip_extras, args)
)
)
def pip(args):
# Honor requires-python when installing test suite dependencies
if any('-r' in arg for arg in args):
os.environ['PIP_IGNORE_REQUIRES_PYTHON'] = '0'
if is_install_self(args):
remove_setuptools()
bootstrap()
cmd = [sys.executable, '-m', 'pip'] + args
subprocess.check_call(cmd)
if __name__ == '__main__':
pip(sys.argv[1:])
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