Hello, Le Tue, 11 Dec 2012 14:08:27 +0800, "Isml" <76069016@qq.com> a écrit :

Hi, everyone, I am testing modifying the pyc file when it is imported. As I know, there is three situation: 1、runing in the python.exe eg: python.exe test.pyc in this situation, I find the source on line 1983 in file pythonrun.c 2、import the pyc from a zip file I find the source on line 1132 in zipimport.c 3、do a normal import eg: two file : main.py and testmodule.py and in main.py: import testmodule

in this situation, I can not find the source code how python implement it. I test a wrong format pyc, and got a error "ImportError: bad magic number"，and I search "bad magic number" in the source code, I find it is in importlib/_bootstrap.py(line 815)，but when I modify this error info(eg: test bad magic) and run again, nothing is changed. It seems that the file is not the correct position.

importlib/_bootstrap.py is indeed the place, but you need to run "make" once you have modified that file. _bootstrap.py is frozen into the executable at compile time, because otherwise the bootstrap issues are intractable. Regards Antoine.