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Pythonからのdll読み込みでOSError: [WinError 126]が出た話

Posted at

現象

ThorLab株式会社様が作られたdllライブラリを使って
電動フリップマウントを動かしていた時です.
Python3.10では問題なく動いていたのが,
Python3.6で実行するとOSError: [WinError 126]が起きました.

解決策

大事なのはos.chdir()でした.
dllの入っているディレクトリに移動してから
cdll.LoadLibraryで読み込めば問題なく動きました.

原因は?

わかる方いらっしゃったらご教示願います。

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