Pyinstaller DLL 不足のエラー解決 (dll was not found/ No module named XXX)

解決方法

最初のPyinstallerの実行で生成された(Pythonファイル名).spec を直接編集して不足しているdll/Moduleのパスを追加する。

a = Analysis(
...
binaries=[(r'.\venv_exif\Lib\site-packages\pyexiv2\lib\py3.8-win\exiv2api.pyd', '.'),(r'.\venv_exif\Lib\site-packages\pyexiv2\lib\exiv2.dll', '.')]
...

その後、spec名指定でPyinstallerを実行する。

Pyinstaller (Pythonファイル名).spec

もしくは

--add-binary オプションで指定する。

Pyinstaller (Pythonファイル名).py --add-binary "\venv_exif\Lib\site-packages\pyexiv2\lib\py3.8-win\exiv2api.pyd"

---

Issue

Imported package used in python script : pyexiv2
Exe creation by Pyinstaller was completed successfully but runtime error occurs.

Error 1 (missing exiv2.dll)

pyimod04_ctypes.PyInstallerImportError: 
Failed to load dynlib/dll 'C:\\Users\\xxx\\AppData\\Local\\Temp\\_MEI120722\\pyexiv2\\lib\\exiv2.dll'. 
Most likely this dynlib/dll was not found when the application was frozen.

Error 2 (missing exiv2api.pyd)

ModuleNotFoundError: No module named 'exiv2api'

Solution :

In spec file, you should specify exiv2api.pyd and exiv2.dll

a = Analysis(
...
binaries=[(r'.\venv_exif\Lib\site-packages\pyexiv2\lib\py3.8-win\exiv2api.pyd', '.'),(r'.\venv_exif\Lib\site-packages\pyexiv2\lib\exiv2.dll', '.')]
...

(or using option --add-binary)