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"""
Wrap the pip command to:
- Avoid the default 'python -m pip' invocation, which causes the current
working directory to be added to the path, which causes problems.
- Ensure pip meets a requisite version.
"""
import sys
import subprocess
def ensure_pip_version(pip_bin, ver):
"""
Ensure the pip version meets the specified version.
Use python -m pip to upgrade/downgrade, because for this operation,
on Windows, pip.exe must not be locked.
"""
cmd = [sys.executable, '-m', 'pip', 'install', 'pip ' + ver]
subprocess.check_call(cmd)
def main():
pip_bin = sys.argv[1]
# workaround for #1644
ensure_pip_version(pip_bin, '<19')
cmd = sys.argv[1:]
subprocess.check_call(cmd)
__name__ == '__main__' and main()
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