Python->c++ dll（dll->python）

Python Help
1

C + + library

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python call

Objdll = ctypes.cdll.LoadLibrary(“libpythontest.dll”)
Objdll.test_init()
for i in range(1,100):
time.sleep(1)

print(‘finish’)

The program crashed during debugging，for the function：
PyImport_ImportModule(“code”)

and, then function execution failed to be traced through source code
PyEval_GetGlobals();
return null

First, Py_IsInitialized() return true, I don’t know why and if it makes any difference.
And, the result is the same whether I call Py_Initialize in the lib.

I don’t know if Python supports mutual invocation, or what mechanism is missed.