Py_Initialize and Py_finalize and MatPlotlib
<p>This is a known problem, but I want to ask the experts for the best way to solve it for me. </p>

<p>I have a project (Euler Math Toolbox), which runs Python as a script language. For this, a library module "python.dll" is loaded at run time, which is linked against "python27.lib". Then Py_Initialize is called. This all works well. </p>

<p>But Euler can be restarted by the user with a new session and notebook. Then I want Python to clear all variables and imports. For this, I call Py_Finalize and unload "python.dll". When Python is needed, loading and initializing starts Python again. </p>

<p>This works. But Python crashes at the first call, if MatPlotlib is imported in the previous session. It seems that Py_Finalize does not completely clear Python, nor does unloading my "python.dll". I tried unloading "python27.dll" (the Python DLL), but this does not help. Most likey, another DLL remains active, but corrupts during Py_Finalize. </p>

<p>To solve this, it would suffice to clear all variables and imports. I could live with not calling Py_Finalize. But how? </p>

<p>PS: You may wonder, why I do not directly link euler.exe to Python. The reason is that this prevents Euler form starting, if Python is not installed, even if it is never needed. </p>

<p>Thanks for any answers! You duplicate your answer to renegrothmann at gmail, if you like. That would help me. </p>
