Christoph Gohlke and compiled packages

[MRAB]

On 2023-04-13 02:27, Mike Dewhirst wrote:
> On 12/04/2023 10:59 pm, Mike Dewhirst wrote:
>> Sadly Windows is still in the dock. The jury is still out.
>>
>> Turns out the "without a hitch" was based on cached wheels.
>>
>> I'm going to start from scratch with new projects using Pythons 3.8, 
>> 3.10 and 3.11 and report back.
> 
> Report summary:
> 
> pip install works well with Python 3.8 and 3.10 (and presumably 3.9) but
> 3.11 fails.
> 
> Report conclusion:
> 
> As indicated in this thread, pip cannot find Python 3.11 wheels and
> therefore needs to compile from source. It is looking for Microsoft's
> C++ compiler version 14.
> 
> I'll (gulp) attempt to swallow the Koolaid.
> 
> See error below ...
> 
> Cheers
> 
> Mike
> 
> (xreq) D:\Users\mike\envs\xreq>pip install -r requirements\dev.txt
> 
> ...
> 
> Collecting psycopg2==2.9.3
> 
>     Downloading psycopg2-2.9.3.tar.gz (380 kB)
> 
>        --------------------------------------- 380.6/380.6 kB 6.0 MB/s eta 0:00:00
> 
>     Preparing metadata (setup.py) ... done
> 
> Collecting Pillow==9.1.1
> 
>     Downloading Pillow-9.1.1.tar.gz (49.8 MB)
> 
>        ---------------------------------------- 49.8/49.8 MB 4.5 MB/s eta 0:00:00
> 
>     Preparing metadata (setup.py) ... done
> 
> ...
> 
> Installing collected packages: psycopg2, Pillow, ...
> 
>     DEPRECATION: psycopg2 is being installed using the legacy 'setup.py install' method, because it does not have a 'pyproject.toml' and the 'wheel' package is not installed. pip 23.1 will enforce this behaviour change. A possible replacement is to enable the '--use-pep517' option. Discussion can be found athttps://github.com/pypa/pip/issues/8559
> 
>     Running setup.py install for psycopg2 ... error
> 
>     error: subprocess-exited-with-error
> 
>     × Running setup.py install for psycopg2 did not run successfully.
> 
>     │ exit code: 1
> 
>     ╰─> [24 lines of output]
> 
>         D:\Users\mike\envs\xreq\Lib\site-packages\setuptools\config\setupcfg.py:508: SetuptoolsDeprecationWarning: The license_file parameter is deprecated, use license_files instead.
> 
>           warnings.warn(msg, warning_class)
> 
>         running install
> 
>         D:\Users\mike\envs\xreq\Lib\site-packages\setuptools\command\install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
> 
>           warnings.warn(
> 
>         running build
> 
>         running build_py
> 
>         creating build
> 
>         creating build\lib.win-amd64-cpython-311
> 
>         creating build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\errorcodes.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\errors.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\extensions.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\extras.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\pool.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\sql.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\tz.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\_ipaddress.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\_json.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\_range.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         copying lib\__init__.py -> build\lib.win-amd64-cpython-311\psycopg2
> 
>         running build_ext
> 
>         building 'psycopg2._psycopg' extension
> 
>         error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools":https://visualstudio.microsoft.com/visual-cpp-build-tools/
> 
>         [end of output]
> 
>     note: This error originates from a subprocess, and is likely not a problem with pip.
> 
> error: legacy-install-failure
> 
> × Encountered error while trying to install package.
> 
> ╰─> psycopg2
> 
> note: This is an issue with the package mentioned above, not pip.
> 
> hint: See above for output from the failure.
> 
> (xreq) D:\Users\mike\envs\xreq>
> 
[snip]

C:\Users\mrab>py -3.11 -m pip install psycopg2
Collecting psycopg2
   Downloading psycopg2-2.9.6-cp311-cp311-win_amd64.whl (1.2 MB)
      ---------------------------------------- 1.2/1.2 MB 2.4 MB/s eta 
0:00:00
Installing collected packages: psycopg2
Successfully installed psycopg2-2.9.6

C:\Users\mrab>py -3.11 -m pip install Pillow
Requirement already satisfied: Pillow in c:\python311\lib\site-packages 
(9.2.0)