Could not find module 'libdmtx-32.dll'

[SablyTv]

Im trying to import decode from pylibdmtx by:

from pylibdmtx.pylibdmtx import decode

but get this error:

Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pylibdmtx\dmtx_library.py", line 38, in load
libdmtx = cdll.LoadLibrary(fname)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\ctypes_init_.py", line 451, in LoadLibrary
return self.dlltype(name)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\ctypes_init.py", line 373, in init
self._handle = _dlopen(self._name, mode)
FileNotFoundError: Could not find module 'libdmtx-32.dll' (or one of its dependencies). Try using the full path with constructor syntax.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "api.py", line 14, in
from pylibdmtx.pylibdmtx import decode
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pylibdmtx\pylibdmtx.py", line 10, in
from .wrapper import (
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pylibdmtx\wrapper.py", line 70, in
dmtxVersion = libdmtx_function('dmtxVersion', c_char_p)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pylibdmtx\wrapper.py", line 58, in libdmtx_function
return prototype((fname, load_libdmtx()))
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pylibdmtx\wrapper.py", line 39, in load_libdmtx
LIBDMTX = dmtx_library.load()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pylibdmtx\dmtx_library.py", line 40, in load
libdmtx = cdll.LoadLibrary(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\ctypes_init.py", line 451, in LoadLibrary
return self.dlltype(name)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\ctypes_init.py", line 373, in init
self._handle = _dlopen(self._name, mode)
FileNotFoundError: Could not find module 'C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pylibdmtx\libdmtx-32.dll' (or one of its dependencies). Try using the full path with constructor syntax.

[baodvu]

+1 on this issue

https://stackoverflow.com/questions/59330863/cant-import-dll-module-in-python

Basically even though the file is there, on python 3.8+ the dll directory has to be declared.

[baodvu]

I resolved this issue by following this:

Windows error message
If you see an ugly ImportError when importing pylibdmtx on Windows you will most likely need the Visual C++ Redistributable Packages for Visual Studio 2013. Install vcredist_x64.exe if using 64-bit Python, vcredist_x86.exe if using 32-bit Python.