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Python ctypes windows error 193

Answer, remove Python. A good discussion here: com/ topic/ python/ answers/ ctypes- 64- bit- windows- 32- bit- dll. I stumbled over some fairly obvious things when importing a Windows dll in python this morning. get the error: File " Python35\ Lib\ ctypes\ _ _ init_ _. py", line 425, in LoadLibrary return self. _ name, mode) OSError: [ WinError 193] % 1 is not a valid Win32 application. This will result in the error:. I found this error [ Error 193] % 1 is not a valid Win32 application when i run this python command windll. LoadLibrary( " C: \ Windows\ System32\ plcommpro. dll" ) For this error i found my plcommpro. dll file is not executable file. I have compiled a Windows 32bit DLL using Visual Studio. Name: Counter_ order_ sender. For Loading libraries I am using python ctypes library: ctypes. LoadLibrary( ' abs path to.

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    Ctypes error windows

    I have a problem loading a Windows DLL in Ctypes, which throws the error: WindowsError: [ Error 193] % 1 is not a valid Win32 application. In my case, it' s a 32- bit DLL built with VS on Windows 7 64- bit, and on my development machine I. This error can also be caused because the DLL that Python is attempting to run has been compiled on a newer version of C+ +. You can see the version you are running in the Python terminal window ( highlighted in bold). Solved: Install OSGeo4W 32bit and config: GDAL_ LIBRARY_ PATH = r' C: \ OSGeo4W\ bin\ gdal202. However when trying to import libtiff in Python I receive the following error: File " C : \ Users\ Adam\ Anaconda2\ lib\ ctypes\ _ _ init_ _. py", line 362, in _ _ init_ _ self. WindowsError: [ Error 193] % 1 is not a valid Win32 application. I am not able to import xgboost in python 2. 7 anaconda windows 8. As the comments suggest, it could be an architecture problem. If you' re using a 32bit DLL with 64bit Python, or vice- versa, then you' ll probably get errors. Since I' ve had your error before, I recommend trying to load your DLL.