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Importing astropy.convolution fails on a conda installation on Python 3.8.0 & 3.9.0 on Windows
See original GitHub issueUPDATE: Upgrade Python to latest bugfix versions of 3.8 and 3.9, respectively.
Description
Importing astropy.convolution fails on a conda installed astropy on Python 3.8 & 3.9 on Windows. The problem does not occur on MacOS. This is for Astropy 5.0.4 (latest version available on conda).
Expected behavior
I expected the import to not throw ImportError.
Actual behavior
The import threw an ImportError. Full log below, including commands I used to install astropy.
Steps to Reproduce
conda create -n astropy_test python==3.9 astropyconda activate astropy_testpython -c "import astropy.convolution"
(base) C:\Users\epor>conda create -n astropy python==3.9 astropy
Collecting package metadata (current_repodata.json): done
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: done
==> WARNING: A newer version of conda exists. <==
current version: 4.9.2
latest version: 4.12.0
Please update conda by running
$ conda update -n base -c defaults conda
## Package Plan ##
environment location: C:\Users\epor\Anaconda3\envs\astropy
added / updated specs:
- astropy
- python==3.9
The following packages will be downloaded:
package | build
---------------------------|-----------------
astropy-5.0.4 | py39h080aedc_0 6.3 MB
ca-certificates-2022.4.26 | haa95532_0 124 KB
certifi-2021.10.8 | py39haa95532_2 152 KB
intel-openmp-2021.4.0 | haa95532_3556 2.2 MB
mkl-2021.4.0 | haa95532_640 114.9 MB
mkl-service-2.4.0 | py39h2bbff1b_0 51 KB
mkl_fft-1.3.1 | py39h277e83a_0 139 KB
mkl_random-1.2.2 | py39hf11a4ad_0 225 KB
numpy-1.21.5 | py39h7a0a035_2 25 KB
numpy-base-1.21.5 | py39hca35cd5_2 4.4 MB
openssl-1.1.1n | h2bbff1b_0 4.8 MB
packaging-21.3 | pyhd3eb1b0_0 36 KB
pip-21.2.4 | py39haa95532_0 1.8 MB
pyerfa-2.0.0 | py39h2bbff1b_0 359 KB
pyparsing-3.0.4 | pyhd3eb1b0_0 81 KB
python-3.9.0 | h6244533_2 16.4 MB
pyyaml-6.0 | py39h2bbff1b_1 145 KB
setuptools-61.2.0 | py39haa95532_0 1.0 MB
six-1.16.0 | pyhd3eb1b0_1 18 KB
sqlite-3.38.2 | h2bbff1b_0 807 KB
tzdata-2022a | hda174b7_0 109 KB
wheel-0.37.1 | pyhd3eb1b0_0 33 KB
wincertstore-0.2 | py39haa95532_2 15 KB
------------------------------------------------------------
Total: 154.1 MB
The following NEW packages will be INSTALLED:
astropy pkgs/main/win-64::astropy-5.0.4-py39h080aedc_0
blas pkgs/main/win-64::blas-1.0-mkl
ca-certificates pkgs/main/win-64::ca-certificates-2022.4.26-haa95532_0
certifi pkgs/main/win-64::certifi-2021.10.8-py39haa95532_2
intel-openmp pkgs/main/win-64::intel-openmp-2021.4.0-haa95532_3556
mkl pkgs/main/win-64::mkl-2021.4.0-haa95532_640
mkl-service pkgs/main/win-64::mkl-service-2.4.0-py39h2bbff1b_0
mkl_fft pkgs/main/win-64::mkl_fft-1.3.1-py39h277e83a_0
mkl_random pkgs/main/win-64::mkl_random-1.2.2-py39hf11a4ad_0
numpy pkgs/main/win-64::numpy-1.21.5-py39h7a0a035_2
numpy-base pkgs/main/win-64::numpy-base-1.21.5-py39hca35cd5_2
openssl pkgs/main/win-64::openssl-1.1.1n-h2bbff1b_0
packaging pkgs/main/noarch::packaging-21.3-pyhd3eb1b0_0
pip pkgs/main/win-64::pip-21.2.4-py39haa95532_0
pyerfa pkgs/main/win-64::pyerfa-2.0.0-py39h2bbff1b_0
pyparsing pkgs/main/noarch::pyparsing-3.0.4-pyhd3eb1b0_0
python pkgs/main/win-64::python-3.9.0-h6244533_2
pyyaml pkgs/main/win-64::pyyaml-6.0-py39h2bbff1b_1
setuptools pkgs/main/win-64::setuptools-61.2.0-py39haa95532_0
six pkgs/main/noarch::six-1.16.0-pyhd3eb1b0_1
sqlite pkgs/main/win-64::sqlite-3.38.2-h2bbff1b_0
tzdata pkgs/main/noarch::tzdata-2022a-hda174b7_0
vc pkgs/main/win-64::vc-14.2-h21ff451_1
vs2015_runtime pkgs/main/win-64::vs2015_runtime-14.27.29016-h5e58377_2
wheel pkgs/main/noarch::wheel-0.37.1-pyhd3eb1b0_0
wincertstore pkgs/main/win-64::wincertstore-0.2-py39haa95532_2
yaml pkgs/main/win-64::yaml-0.2.5-he774522_0
Proceed ([y]/n)? y
Downloading and Extracting Packages
sqlite-3.38.2 | 807 KB | ############################################################################ | 100%
setuptools-61.2.0 | 1.0 MB | ############################################################################ | 100%
mkl_random-1.2.2 | 225 KB | ############################################################################ | 100%
six-1.16.0 | 18 KB | ############################################################################ | 100%
pip-21.2.4 | 1.8 MB | ############################################################################ | 100%
intel-openmp-2021.4. | 2.2 MB | ############################################################################ | 100%
python-3.9.0 | 16.4 MB | ############################################################################ | 100%
mkl-service-2.4.0 | 51 KB | ############################################################################ | 100%
packaging-21.3 | 36 KB | ############################################################################ | 100%
numpy-1.21.5 | 25 KB | ############################################################################ | 100%
astropy-5.0.4 | 6.3 MB | ############################################################################ | 100%
mkl-2021.4.0 | 114.9 MB | ############################################################################ | 100%
numpy-base-1.21.5 | 4.4 MB | ############################################################################ | 100%
wheel-0.37.1 | 33 KB | ############################################################################ | 100%
openssl-1.1.1n | 4.8 MB | ############################################################################ | 100%
wincertstore-0.2 | 15 KB | ############################################################################ | 100%
tzdata-2022a | 109 KB | ############################################################################ | 100%
mkl_fft-1.3.1 | 139 KB | ############################################################################ | 100%
pyerfa-2.0.0 | 359 KB | ############################################################################ | 100%
certifi-2021.10.8 | 152 KB | ############################################################################ | 100%
pyyaml-6.0 | 145 KB | ############################################################################ | 100%
ca-certificates-2022 | 124 KB | ############################################################################ | 100%
pyparsing-3.0.4 | 81 KB | ############################################################################ | 100%
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
#
# To activate this environment, use
#
# $ conda activate astropy
#
# To deactivate an active environment, use
#
# $ conda deactivate
(base) C:\Users\epor>conda activate astropy
(astropy) C:\Users\epor>python
Python 3.9.0 (default, Nov 15 2020, 08:30:55) [MSC v.1916 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import astropy.convolution
Traceback (most recent call last):
File "C:\Users\epor\Anaconda3\envs\astropy\lib\site-packages\astropy\convolution\convolve.py", line 30, in <module>
_convolve = load_library("_convolve", LIBRARY_PATH)
File "C:\Users\epor\Anaconda3\envs\astropy\lib\site-packages\numpy\ctypeslib.py", line 154, in load_library
raise OSError("no file with expected extension")
OSError: no file with expected extension
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\epor\Anaconda3\envs\astropy\lib\site-packages\astropy\convolution\__init__.py", line 8, in <module>
from .convolve import convolve, convolve_fft, interpolate_replace_nans, convolve_models, convolve_models_fft # noqa
File "C:\Users\epor\Anaconda3\envs\astropy\lib\site-packages\astropy\convolution\convolve.py", line 32, in <module>
raise ImportError("Convolution C extension is missing. Try re-building astropy.")
ImportError: Convolution C extension is missing. Try re-building astropy.
>>>
System Details
Python 3.9.0 (default, Nov 15 2020, 08:30:55) [MSC v.1916 64 bit (AMD64)] Numpy 1.21.5 pyerfa 2.0.0 astropy 5.0.4 Matplotlib and Scipy were not automatically installed with these installation commands (as expected as they are optional dependencies). Error occurs even if these are installed with conda in the same environment.
Stakeholders
Issue Analytics
- State:
- Created a year ago
- Comments:6 (3 by maintainers)
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Problem does not occur with Python 3.9.12. It only does for Python 3.9.0. The same for the latest patch of Python 3.8 vs. 3.8.0. I think this issue should be solved then.
OK, glad to hear. Thanks for letting us know!