vifactor/repostat

Installation on Windows 10 (Python 3.9) fails when trying to install the Pandas library

digeomel opened this issue · 5 comments

digeomel commented

It seems that it's trying to install Pandas version 0.25.3, while the latest version (which installs separately with no issues) is 1.1.4. I've installed Cython and Wheel before that, because it seemed to be throwing some errors related to that, but still no luck. The last error in the stacktrace is this:

C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Tools\MSVC\14.16.27023\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs/src/ujson/python -Ipandas/_libs/src/ujson/lib -Ipandas/_libs/src/datetime -IC:\Python39\lib\site-packages\numpy\core\include -IC:\Python39\include -IC:\Python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Tools\MSVC\14.16.27023\include -IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\cppwinrt /Tcpandas/_libs/src/ujson/python/objToJSON.c /Fobuild\temp.win-amd64-3.9\Release\pandas/_libs/src/ujson/python/objToJSON.obj -D_GNU_SOURCE
    objToJSON.c
    pandas/_libs/src/ujson/python/objToJSON.c(181): error C2065: 'NUMPY_IMPORT_ARRAY_RETVAL': undeclared identifier
    pandas/_libs/src/ujson/python/objToJSON.c(181): warning C4047: 'return': 'void *' differs in levels of indirection from 'int'
    pandas/_libs/src/ujson/python/objToJSON.c(479): warning C4267: 'function': conversion from 'size_t' to 'int', possible loss of data
    pandas/_libs/src/ujson/python/objToJSON.c(680): warning C4244: '=': conversion from 'npy_intp' to 'int', possible loss of data
    pandas/_libs/src/ujson/python/objToJSON.c(959): warning C4244: '=': conversion from 'Py_ssize_t' to 'int', possible loss of data
    pandas/_libs/src/ujson/python/objToJSON.c(1050): warning C4244: '=': conversion from 'npy_intp' to 'int', possible loss of data
    pandas/_libs/src/ujson/python/objToJSON.c(1844): warning C4244: '=': conversion from 'npy_float64' to 'npy_int64', possible loss of data
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\BuildTools\\VC\\Tools\\MSVC\\14.16.27023\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2

Any ideas?

digeomel commented

I think the issue is with Python 3.9, it's too new 😞

https://pythonspeed.com/articles/switch-python-3.9/

digeomel commented

Indeed, with Python 3.8 the installation runs without issues.
Maybe this needs to be written in the installation instructions.

vifactor commented

Hi, thanks for reporting.
by the time I wrote the latest commit even python 3.8 was not in wide use, so no surprise that there is an issue with 3.9. CI was configured for python 3.6.

Currently, I do not have time to continue development and will appreciate a PR with update to README.

  • 👍1
digeomel commented

Done. I updated the readme and also created a pipfile (https://realpython.com/pipenv-guide/) which seems to be the standard for Python dependencies these days (although I am not a Python expert, by any means, so please feel free to correct me). It lists Python 3.8 as a dependency, maybe this needs to be edited to include older compatible versions (I added a badge to show that it works with 3.6-3.8).

vifactor commented

thank you for your contribution

  • 👍1