Skip to content
Advertisement

Tag: ctypes

Ctypes linux behavior differs on py2 and py3

While writing a python wrapper for the getmntent linux libc function, there is a strange difference between the behaviour between python 2.x and 3.x for the following code where most of the real work is done by the C library. Since I interface C code with python often, Can anyone explain or correct what is going wrong? The expected output

Why does loading the libc shared library have “‘LibraryLoader’ object is not callable” error?

From https://en.wikipedia.org/wiki/Foreign_function_interface the ctypes module can load C functions from shared libraries/DLLs on-the-fly and translate simple data types automatically between Python and C semantics as follows: On Lubuntu 18.04 I was wondering why loading the libc shared library has “‘LibraryLoader’ object is not callable” error? See also https://unix.stackexchange.com/questions/449107/what-differences-and-relations-are-between-the-various-libc-so Answer You’re confusing lower case cdll (which is a LibraryLoader) with upper

python ctypes C++ get back char* missing last character on linux

i have the following C++ code: which is using ifreq to get the mac address of the local PC and sticks it into a array of chars. The routine gets compiled in the “Utility.so” Then i have the following python code: and i get the following result 02:00:AC:99:00:9 when my MAC is actually: 02:00:AC:99:00:9C So im’ missing the last char.

Advertisement