[ BUG ] pyppmd py7zr dependency issue on windows

[59e5aaf4]

Bug Report Template

Describe the bug

Cannot install on windows. caracara forces specific versions of py7zr which then request a specific vesion of pyppmd which doesn't build on the latest windows, evne with said msvc++14 installed.

Collecting pyppmd<1.2.0,>=1.1.0 (from py7zr<0.23.0,>=0.22.0->caracara->mycode)


Building wheels for collected packages: pyppmd
  Building wheel for pyppmd (pyproject.toml) ... error
  error: subprocess-exited-with-error
      running build_ext
      building 'pyppmd.c._ppmd' 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: Failed building wheel for pyppmd
Failed to build pyppmd

It's however possible to just install py7zr and pyppmd normally with their latest versions. It's currently forcing pyppmd 1.1.1 which fails to build. See

• miurahr/py7zr@b9bbc82

To Reproduce

run py -3 -m pip install caracara on windows

Expected behavior

install works

Environment

Operating System Version

windows 11 ( 10.0.22631.5335 )

Python Version

py -0p
-V:3.13 * C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.1008.0_x64__qbz5n2kfra8p0\python3.13.exe

Python Package Versions

py -3 -m pip freeze
appdirs==1.4.4
beautifulsoup4==4.13.4
Brotli==1.1.0
bs4==0.0.2
certifi==2025.4.26
charset-normalizer==3.4.2
colorama==0.4.6
cssselect==1.3.0
fake-useragent==2.2.0
idna==3.10
importlib_metadata==8.7.0
inflate64==1.0.3
lxml==5.4.0
lxml_html_clean==0.4.2
multivolumefile==0.2.3
numpy==2.3.0
pandas==2.3.0
parse==1.20.2
psutil==7.0.0
psycopg2==2.9.10
py7zr==1.0.0
pyarrow==20.0.0
pybcj==1.0.6
pycryptodomex==3.23.0
pyee==11.1.1
pyotp==2.9.0
pyppeteer==2.0.0
pyppmd==1.2.0
pyquery==2.0.1
python-dateutil==2.9.0.post0
pytz==2025.2
pyzstd==0.17.0
requests==2.32.4
requests-html==0.10.0
ruamel.yaml==0.18.14
ruamel.yaml.clib==0.2.12
simplejson==3.20.1
six==1.17.0
soupsieve==2.7
texttable==1.7.0
tqdm==4.67.1
typing_extensions==4.14.0
tzdata==2025.2
urllib3==1.26.20
w3lib==2.3.1
websockets==10.4
zipp==3.23.0

Additional context

Add any other context about the problem here.

[59e5aaf4]

Looks like this only happens with the Python "App". Using the real python app works as expected with py7zr-0.22.0 and pyppmd-1.1.1, maybe this just has to do with building wheels inside the windows "app" weird runtime. I managed to install without problem on my 3.10 real install.

py -0p
 -V:3.13 *        C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.13_3.13.1008.0_x64__qbz5n2kfra8p0\python3.13.exe
 -V:3.10          C:\Program Files\Python310\python.exe

I need to warn my users to install a real python, and not the candy cane version from the windows adware repository.

[zhangjunjie1]

using windows visual studio will deal with your question.