Python Extensions with C Custom PyObject?

[babaliaris]

AFAIK PyArg_ParseTuple does not incref the item, but you don't need to incref it yourself, because there is already a reference on the item in the argument tuple. If you don't incref it, you must not decref it upon leaving the function. If your code calls List_Append, it will probably keep a reference to the item, which means that List_Append needs to incref the item one way or another.

I found a <document> that may help you.

About the assert question, can you elaborate on the issue, because I run your code and I get

Output:
Traceback (most recent call last):
  File "asserttruc.py", line 7, in <module>
    run_test( unit_test )
  File "asserttruc.py", line 5, in run_test
    func()
  File "asserttruc.py", line 2, in unit_test
    assert(False)
AssertionError

I want assert to do what it does without raising an exception.

Well i found this and it works.

import inspect

def ASSERT(condition):

    if (condition == False):
        callerframerecord = inspect.stack()[1]
        frame = callerframerecord[0]
        info  = inspect.getframeinfo(frame)
        print("Assertion Failed:\n")
        print ("In file    : "+info.filename)
        print ("In function: "+info.function)
        print ("At line    : "+str(info.lineno))
        

def unit_test():
    ASSERT(False)
 
def run_test(func):
    func()
 
run_test( unit_test )

Assertion Failed:

In file    : C:\Users\babaliaris\Desktop\a.py
In function: unit_test
At line    : 16