get stacktrace of a python program for debugging

Question

In order to get the stacktrace of a python program, I am trying to follow this example. In the article, the author invokes the gdb as follows. However, the python version of my environment is python 3.4.4. When I type

python3.4-dbg  testmyplotlib2.py &

The error message is python3.4-dbg: command not found. What's the right way to get stacktrace by using gdb.

Not trying to state the obvious here but I think you might not have the debug built installed. (Command not found is the shell warning that something with that name doesn't exist). Here's an article about the setup on Ubuntu wiki.ubuntu.com/PyDbgBuilds — Work of Artiz
– Work of Artiz, Commented Aug 22, 2016 at 20:30

TripleD · Accepted Answer · 2016-08-22 20:30:00Z

1

What OS are you on? It looks like you need to install python3.4-dbg. If you are on Linux, you will need to enter:

sudo apt-get install python3.4-dbg

answered Aug 22, 2016 at 20:30

TripleD

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Dmitry Torba · Accepted Answer · 2016-08-22 20:46:09Z

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GDB is excellent program for debugging, but if printing traceback is the only reason you are installing GDB, do not do it, that is waay overkill. You can just import traceback and

use traceback.format_stack() to get an array of calls that lead to the location in program
use traceback.print_stack() to print it to command line
use print traceback.format_exc() to print what lead to the current exceptions (works in except clasuse)

answered Aug 22, 2016 at 20:46

Dmitry Torba

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