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fhs / pyhdf

Python wrapper around the NCSA HDF version 4 library
https://pypi.org/project/pyhdf/
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DLL load failed while importing _hdfext: #66

Closed qzx-120 closed 1 year ago

qzx-120 commented 1 year ago

What version of pyhdf, HDF4, and Python are you using?

pyhdf version: 0.11.3 HDF4 C library version: Python version: 3.10

What operating system are you using?

Windows 10 AMD 64bit

What did you do?

run this:

from pyhdf.SD import SD, SDC

What did you expect to see?

no error

What did you see instead?

Traceback (most recent call last): File "C:\Users\Ray\Documents\ACN\read_hdf2.py", line 6, in from pyhdf.SD import SD, SDC File "C:\Users\Ray\AppData\Local\Programs\Python\Python310\lib\site-packages\pyhdf\SD.py", line 1003, in from . import hdfext as _C File "C:\Users\Ray\AppData\Local\Programs\Python\Python310\lib\site-packages\pyhdf\hdfext.py", line 10, in from . import _hdfext ImportError: DLL load failed while importing _hdfext: The specified module could not be found.

fhs commented 1 year ago

Is this using the wheel from PyPI or did you build from source?

qzx-120 commented 1 year ago

i used the wheel from PyPI and it gave me that error.

i reinstalled it using a wheel from here: https://www.lfd.uci.edu/~gohlke/pythonlibs/#pyhdf and it's working fine now.

So i guess it's the wheel in PyPI that has the error.