ImportError: DLL load failed while importing qhull: The specified module could not be found.

[hossam-houssien]

env

• Python 3.9.2
• OS : Windows 10 1903 build 18362.329
• hatch-0.1.0.0
• matplotlib-3.4.2
• numpy-1.20.3
• pandas-1.2.4
• scikit-learn-0.24.2
• seaborn-0.11.2

issue

• got the following error when run hatch --help
  Traceback (most recent call last):
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\runpy.py", line 197, in run_module_as_main
  return run_code(code, main_globals, None,
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\runpy.py", line 87, in run_code
  exec(code, run_globals)
  File "D:\hossam\bin\python\WPy64-3920\python-3.9.2.amd64\Scripts\hatch.exe_main.py", line 4, in
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\hatch\hatch.py", line 19, in
  import hatch.plot
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\hatch\plot.py", line 13, in
  import seaborn as sns
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\seaborn_init.py", line 2, in
  from .rcmod import * # noqa: F401,F403
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\seaborn\rcmod.py", line 7, in
  from . import palettes
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\seaborn\palettes.py", line 9, in
  from .utils import desaturate, get_color_cycle
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\seaborn\utils.py", line 10, in
  from scipy import stats
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\scipy\stats_init.py", line 391, in
  from .stats import *
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\scipy\stats\stats.py", line 174, in
  from scipy.spatial.distance import cdist
  File "d:\hossam\bin\python\wpy64-3920\python-3.9.2.amd64\lib\site-packages\scipy\spatial_init_.py", line 98, in
  from .qhull import *
  ImportError: DLL load failed while importing qhull: The specified module could not be found.

[bjpop]

Thanks @hossam-houssien for the report.

I don't have access to a Windows machine to test this.

However, based on the error it looks like it might be related to a problem with installing scipy on Windows, see for example:

https://stackoverflow.com/questions/34253458/installing-scipy-package-in-windows

There are a few suggested solutions mentioned in stackoverflow that might help. Would you mind checking if any of those help you fix the problem?

Searching for the error also pointed to a number of GitHub issues for Python software on Windows that depends on scipy. Seems like it might be a common problem.

[hossam-houssien]

issue fixed by

• uninstall scipy and numpy
• re-install scipy==1.6.1 and numpy==1.20.3

[bjpop]

Great, thanks @hossam-houssien. I'm glad you have solved the problem. Thanks for reporting the solution. I will close this now.