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Author schlamar
Recipients paul.moore, schlamar, steve.dower, tim.golden, zach.ware
Date 2019-02-01.08:49:13
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
Creating a venv from the python.exe from another venv does not work since 3.7.2 on Windows. This is probably related to the change

    bpo-34977: venv on Windows will now use a python.exe redirector rather than copying the actual binaries from the base environment.

For example running 

    c:\users\$USER\.local\pipx\venvs\pipx-app\scripts\python.exe -m venv C:\Users\$USER\.local\pipx\venvs\tox
    C:\Users\$USER\.local\pipx\venvs\tox\Scripts\python.exe -m pip install --upgrade pip

results in pip installing to venvs\pipx-app and not in venvs\tox. 

Downstream bugreport in pipx is
Date User Action Args
2019-02-01 08:49:16schlamarsetrecipients: + schlamar, paul.moore, tim.golden, zach.ware, steve.dower
2019-02-01 08:49:13schlamarsetmessageid: <>
2019-02-01 08:49:13schlamarlinkissue35872 messages
2019-02-01 08:49:13schlamarcreate