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skeerthan98 opened this issue Oct 9, 2020 · 4 comments
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Support: --build deprecation #8976

skeerthan98 opened this issue Oct 9, 2020 · 4 comments
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type: support User Support

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@skeerthan98
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  • pip version: 20.2.3
  • Python version: 3.9
  • Operating system: Windows 10
@skeerthan98
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How to fix this issue.

I am totally new to python and it says - "A possible replacement is use the TMPDIR/TEMP/TMP environment variable, possibly combined with --no-clean", while trying to install opencv.

Please let me know, where do I replace it and how to do it.

@pradyunsg pradyunsg changed the title DEPRECATION: The -b/--build/--build-dir/--build-directory option is deprecated. pip 20.3 will remove support for this functionality. A possible replacement is use the TMPDIR/TEMP/TMP environment variable, possibly combined with --no-clean. You can find discussion regarding this at https://github.com/pypa/pip/issues/8333. ERROR: Command errored out with exit status 1: command: 'C:\Users\Keerthan\PycharmProjects\demo3\venv\Scripts\python.exe' 'C:\Users\Keerthan\PycharmProjects\demo3\venv\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\Keerthan\AppData\Local\Temp\tmp8cy3j0cy' Support: --build deprecation Oct 9, 2020
@pradyunsg
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Please provide the details of what you did to get this error message.

@pradyunsg pradyunsg added the type: support User Support label Oct 9, 2020
@McSinyx
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McSinyx commented Oct 10, 2020

@pradyunsg, this seems to be because opencv sdist does not build nicely with pip. I suggest leaving it to the maintainers of opencv to solve the issue since the its build process is non-trivial anyway.

@skeerthan98, opencv-python has not been built for Python 3.9 just yet (opencv/opencv-python#382); for the ease of install you might want to use Python 3.8 for now. You might also want to file an issue over opencv to tell them pip has deprecated --build.

@skeerthan98
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@McSinyx Thanks. Now its working fine

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@pradyunsg @McSinyx @skeerthan98