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Unexpected behavior with virtualenvs #424

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dougransom opened this issue Jul 23, 2021 · 6 comments
Open

Unexpected behavior with virtualenvs #424

dougransom opened this issue Jul 23, 2021 · 6 comments

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@dougransom
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On windows,
flit install
flit install --symlink
flit install --env
flit install --python = c:\users\dougr\onedrive\doug\codingprojects\dt\nl\scripts\python.exe

All install in the base python instead of the virtual environment.

The workaround is

 flit build --no-setup-py
 pip install .\dist\natlink-0.0.0.1.8-py3-none-any.whl

which is rather cumbersome.

More information on python (from the [pyenvutils](https://pypi.org/project/pyenvutils/ module also packaged with flit).

Platform: "win32"
Python version: "3.8"
Current installation scheme: "nt"

Paths:
        data = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl"
        include = "C:\Python38-32\Include"
        platinclude = "C:\Python38-32\Include"
        platlib = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl\Lib\site-packages"
        platstdlib = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl\Lib"
        purelib = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl\Lib\site-packages"
        scripts = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl\Scripts"
        stdlib = "C:\Python38-32\Lib"

Variables:
        BINDIR = "C:\Users\dougr\OneDrive\doug\codingprojects\dt\nl\Scripts"
        BINLIBDEST = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl\Lib"
        EXE = ".exe"
        EXT_SUFFIX = ".cp38-win32.pyd"
        INCLUDEPY = "C:\Python38-32\Include"
        LIBDEST = "C:\Python38-32\Lib"
        SO = ".cp38-win32.pyd"
        VERSION = "38"
        abiflags = ""
        base = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl"
        exec_prefix = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl"
        installed_base = "C:\Python38-32"
        installed_platbase = "C:\Python38-32"
        platbase = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl"
        prefix = "c:\users\dougr\onedrive\doug\codingprojects\dt\nl"
        projectbase = "C:\Users\dougr\OneDrive\doug\codingprojects\dt\nl\Scripts"
        py_version = "3.8.10"
        py_version_nodot = "38"
        py_version_short = "3.8"
        srcdir = "C:\Users\dougr\OneDrive\doug\codingprojects\dt\nl\Scripts"
        userbase = "C:\Users\dougr\AppData\Roaming\Python"
(nl) PS C:\users\dougr\OneDrive\doug\codingprojects\dt\natlinkkb100\natlink>
@takluyver
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Hmm. I've got a feeling I remember that there's something odd about the way virtualenvs work on Windows, but I don't remember what it is. 😕

Does pip install . work? That should now automatically make a wheel and then install it for you. One day, flit install will probably go away in favour of using pip directly.

@dougransom
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dougransom commented Aug 5, 2021 via email

@takluyver
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There's work towards a standardised mechanism for editable installs, so pip install -e . will work - this is PEP 660, and PR #400 here.

That said, I may still keep the symlink trick around, so long as it's not too much work to maintain, because it appeals to me more than the .pth files we'll use for the standardised hook.

@dougransom
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dougransom commented Aug 6, 2021 via email

@takluyver
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I'm not aware of anything like that; let me know if you find/make one. 🙂

@dougransom
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I'm not aware of anything like that; let me know if you find/make one. 🙂

Hm. I think most if the information for a published package on pypi is available through this api:

https://warehouse.readthedocs.io/api-reference/json.html#project

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@takluyver @dougransom