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pip install napari[all] doesn't work on Windows (pywin32 conflict between conda and pip)
See original GitHub issue🐛 Bug
Hi all,
following up on a discussion on image.sc I’m trying some napari installations on windows which fail regularily. Napari crashes right after installation in this case.
To Reproduce
Steps to reproduce the behavior:
open a cmd terminal on Windows 10 and enter these commands:
conda create --name test_1 python=3.8
conda activate test_1
pip install napari[all]
napari
This error shows up:
Traceback (most recent call last):
File "C:\Users\rober\miniconda3\envs\test_1\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Users\rober\miniconda3\envs\test_1\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "C:\Users\rober\miniconda3\envs\test_1\Scripts\napari.exe\__main__.py", line 7, in <module>
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\__main__.py", line 431, in main
_run()
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\__main__.py", line 230, in _run
from napari import run, view_path
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\_lazy.py", line 47, in __getattr__
submod = import_module(f'{module_name}.{attr_to_modules[name]}')
File "C:\Users\rober\miniconda3\envs\test_1\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\view_layers.py", line 17, in <module>
from .viewer import Viewer
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\viewer.py", line 5, in <module>
from .components.viewer_model import ViewerModel
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\components\__init__.py", line 17, in <module>
from .camera import Camera
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\components\camera.py", line 6, in <module>
from ..utils.events import EventedModel
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\utils\__init__.py", line 2, in <module>
from .colormaps import Colormap
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\utils\colormaps\__init__.py", line 2, in <module>
from .colormap import Colormap
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\utils\colormaps\colormap.py", line 7, in <module>
from ..events import EventedModel
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\utils\events\__init__.py", line 1, in <module>
from .event import EmitterGroup, Event, EventEmitter # isort:skip
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\utils\events\event.py", line 71, in <module>
from ..translations import trans
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\utils\translations.py", line 14, in <module>
from ._base import _DEFAULT_CONFIG_PATH, _DEFAULT_LOCALE
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\napari\utils\_base.py", line 14, in <module>
_DEFAULT_CONFIG_PATH = user_config_dir(_APPNAME, _APPAUTHOR, _FILENAME)
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\appdirs.py", line 196, in user_config_dir
path = user_data_dir(appname, appauthor, None, roaming)
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\appdirs.py", line 81, in user_data_dir
path = os.path.normpath(_get_win_folder(const))
File "C:\Users\rober\miniconda3\envs\test_1\lib\site-packages\appdirs.py", line 480, in _get_win_folder_with_pywin32
from win32com.shell import shellcon, shell
ImportError: DLL load failed while importing shell: The specified procedure could not be found.
Expected behavior
Would be cool to understand what’s going on here and add a hint to an FAQ/troublshooting section on the napari website. This error is quite common in our institute. We use conda install napari nowadays to prevent it.
Environment
conda list:
# Name Version Build Channel
alabaster 0.7.12 pypi_0 pypi
appdirs 1.4.4 pypi_0 pypi
attrs 21.2.0 pypi_0 pypi
babel 2.9.1 pypi_0 pypi
backcall 0.2.0 pypi_0 pypi
ca-certificates 2021.10.8 h5b45459_0 conda-forge
cachey 0.2.1 pypi_0 pypi
certifi 2021.10.8 pypi_0 pypi
charset-normalizer 2.0.7 pypi_0 pypi
cloudpickle 2.0.0 pypi_0 pypi
colorama 0.4.4 pypi_0 pypi
cycler 0.11.0 pypi_0 pypi
dask 2021.11.1 pypi_0 pypi
debugpy 1.5.1 pypi_0 pypi
decorator 5.1.0 pypi_0 pypi
docstring-parser 0.13 pypi_0 pypi
docutils 0.17.1 pypi_0 pypi
entrypoints 0.3 pypi_0 pypi
fonttools 4.28.1 pypi_0 pypi
freetype-py 2.2.0 pypi_0 pypi
fsspec 2021.11.0 pypi_0 pypi
heapdict 1.0.1 pypi_0 pypi
hsluv 5.0.2 pypi_0 pypi
idna 3.3 pypi_0 pypi
imageio 2.10.5 pypi_0 pypi
imagesize 1.3.0 pypi_0 pypi
importlib-resources 5.4.0 pypi_0 pypi
ipykernel 6.5.0 pypi_0 pypi
ipython 7.29.0 pypi_0 pypi
ipython-genutils 0.2.0 pypi_0 pypi
jedi 0.18.1 pypi_0 pypi
jinja2 3.0.3 pypi_0 pypi
jsonschema 4.2.1 pypi_0 pypi
jupyter-client 7.0.6 pypi_0 pypi
jupyter-core 4.9.1 pypi_0 pypi
kiwisolver 1.3.2 pypi_0 pypi
locket 0.2.1 pypi_0 pypi
magicgui 0.3.3 pypi_0 pypi
markupsafe 2.0.1 pypi_0 pypi
matplotlib 3.5.0 pypi_0 pypi
matplotlib-inline 0.1.3 pypi_0 pypi
napari 0.4.12 pypi_0 pypi
napari-console 0.0.4 pypi_0 pypi
napari-plugin-engine 0.2.0 pypi_0 pypi
napari-svg 0.1.5 pypi_0 pypi
nest-asyncio 1.5.1 pypi_0 pypi
networkx 2.6.3 pypi_0 pypi
numpy 1.21.4 pypi_0 pypi
numpydoc 1.1.0 pypi_0 pypi
openssl 3.0.0 h8ffe710_2 conda-forge
packaging 21.2 pypi_0 pypi
parso 0.8.2 pypi_0 pypi
partd 1.2.0 pypi_0 pypi
pickleshare 0.7.5 pypi_0 pypi
pillow 8.4.0 pypi_0 pypi
pint 0.18 pypi_0 pypi
pip 21.3.1 pyhd8ed1ab_0 conda-forge
pooch 1.5.2 pypi_0 pypi
prompt-toolkit 3.0.22 pypi_0 pypi
psutil 5.8.0 pypi_0 pypi
psygnal 0.2.0 pypi_0 pypi
pydantic 1.8.2 pypi_0 pypi
pygments 2.10.0 pypi_0 pypi
pyopengl 3.1.5 pypi_0 pypi
pyparsing 2.4.7 pypi_0 pypi
pyqt5 5.15.6 pypi_0 pypi
pyqt5-qt5 5.15.2 pypi_0 pypi
pyqt5-sip 12.9.0 pypi_0 pypi
pyrsistent 0.18.0 pypi_0 pypi
python 3.8.12 h900ac77_2_cpython conda-forge
python-dateutil 2.8.2 pypi_0 pypi
python_abi 3.8 2_cp38 conda-forge
pytz 2021.3 pypi_0 pypi
pywavelets 1.2.0 pypi_0 pypi
pywin32 302 pypi_0 pypi
pyyaml 6.0 pypi_0 pypi
pyzmq 22.3.0 pypi_0 pypi
qtconsole 5.2.0 pypi_0 pypi
qtpy 1.11.2 pypi_0 pypi
requests 2.26.0 pypi_0 pypi
scikit-image 0.18.3 pypi_0 pypi
scipy 1.7.2 pypi_0 pypi
setuptools 59.1.1 py38haa244fe_0 conda-forge
setuptools-scm 6.3.2 pypi_0 pypi
six 1.16.0 pypi_0 pypi
snowballstemmer 2.2.0 pypi_0 pypi
sphinx 4.3.0 pypi_0 pypi
sphinxcontrib-applehelp 1.0.2 pypi_0 pypi
sphinxcontrib-devhelp 1.0.2 pypi_0 pypi
sphinxcontrib-htmlhelp 2.0.0 pypi_0 pypi
sphinxcontrib-jsmath 1.0.1 pypi_0 pypi
sphinxcontrib-qthelp 1.0.3 pypi_0 pypi
sphinxcontrib-serializinghtml 1.1.5 pypi_0 pypi
sqlite 3.36.0 h8ffe710_2 conda-forge
superqt 0.2.4 pypi_0 pypi
tifffile 2021.11.2 pypi_0 pypi
tomli 1.2.2 pypi_0 pypi
toolz 0.11.2 pypi_0 pypi
tornado 6.1 pypi_0 pypi
tqdm 4.62.3 pypi_0 pypi
traitlets 5.1.1 pypi_0 pypi
typing-extensions 4.0.0 pypi_0 pypi
ucrt 10.0.20348.0 h57928b3_0 conda-forge
urllib3 1.26.7 pypi_0 pypi
vc 14.2 hb210afc_5 conda-forge
vispy 0.9.3 pypi_0 pypi
vs2015_runtime 14.29.30037 h902a5da_5 conda-forge
wcwidth 0.2.5 pypi_0 pypi
wheel 0.37.0 pyhd8ed1ab_1 conda-forge
wrapt 1.13.3 pypi_0 pypi
pip list:
Package Version
----------------------------- ---------
alabaster 0.7.12
appdirs 1.4.4
attrs 21.2.0
Babel 2.9.1
backcall 0.2.0
bleach 4.1.0
cachey 0.2.1
certifi 2021.10.8
charset-normalizer 2.0.7
cloudpickle 2.0.0
colorama 0.4.4
cycler 0.11.0
dask 2021.11.1
debugpy 1.5.1
decorator 5.1.0
docstring-parser 0.13
docutils 0.17.1
entrypoints 0.3
fonttools 4.28.1
freetype-py 2.2.0
fsspec 2021.11.0
HeapDict 1.0.1
hsluv 5.0.2
idna 3.3
imageio 2.10.5
imagesize 1.3.0
importlib-metadata 4.6.0
importlib-resources 5.4.0
ipykernel 6.5.0
ipython 7.29.0
ipython-genutils 0.2.0
jedi 0.18.1
Jinja2 3.0.3
jsonschema 4.2.1
jupyter-client 7.0.6
jupyter-core 4.9.1
keyring 23.0.1
kiwisolver 1.3.2
locket 0.2.1
magicgui 0.3.3
MarkupSafe 2.0.1
matplotlib 3.5.0
matplotlib-inline 0.1.3
napari 0.4.12
napari-console 0.0.4
napari-plugin-engine 0.2.0
napari-svg 0.1.5
nest-asyncio 1.5.1
networkx 2.6.3
numpy 1.21.4
numpydoc 1.1.0
packaging 21.2
parso 0.8.2
partd 1.2.0
pickleshare 0.7.5
Pillow 8.4.0
Pint 0.18
pip 21.3.1
pkginfo 1.7.0
pooch 1.5.2
prompt-toolkit 3.0.22
psutil 5.8.0
psygnal 0.2.0
pydantic 1.8.2
Pygments 2.10.0
PyOpenGL 3.1.5
pyparsing 2.4.7
PyQt5 5.15.6
PyQt5-Qt5 5.15.2
PyQt5-sip 12.9.0
pyrsistent 0.18.0
python-dateutil 2.8.2
pytz 2021.3
PyWavelets 1.2.0
pywin32 302
pywin32-ctypes 0.2.0
PyYAML 6.0
pyzmq 22.3.0
qtconsole 5.2.0
QtPy 1.11.2
readme-renderer 29.0
requests 2.26.0
requests-toolbelt 0.9.1
rfc3986 1.5.0
scikit-image 0.18.3
scipy 1.7.2
setuptools 58.2.0
setuptools-scm 6.3.2
six 1.16.0
snowballstemmer 2.2.0
Sphinx 4.3.0
sphinxcontrib-applehelp 1.0.2
sphinxcontrib-devhelp 1.0.2
sphinxcontrib-htmlhelp 2.0.0
sphinxcontrib-jsmath 1.0.1
sphinxcontrib-qthelp 1.0.3
sphinxcontrib-serializinghtml 1.1.5
superqt 0.2.4
tifffile 2021.11.2
tomli 1.2.2
toolz 0.11.2
tornado 6.1
tqdm 4.62.3
traitlets 5.1.1
twine 3.4.2
typing_extensions 4.0.0
urllib3 1.26.7
vispy 0.9.3
wcwidth 0.2.5
webencodings 0.5.1
wheel 0.37.0
wrapt 1.13.3
zipp 3.4.1
Additional context
Issue Analytics
- State:
- Created 2 years ago
- Comments:13 (13 by maintainers)
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I just tried. In my
test_1environment napari still doesn’t work then, same error:BUT: After
conda install pywin32insidetest_1, napari works again! 🥳I will close this issue. Thanks 💯 for your help!
I’ll also note that all of those things (which are just the requirements for twine) are not in your conda env… so they might be in some global user space (i.e. if you have ever used
pip install --user ...) I have no particular reason to suspect that any of those things are the problem, and if I install twine into my environment it bringspywin32-ctypes, and it still works for me (though my appdirs is still using not using thepywin32version of _get_win_dir). So, see if you can figure out where that win32api module is on your computer: