Traceit

Question

Trace the execution of a python program.

Solution

import sys
import linecache
import random

def traceit(frame, event, arg):
    if event == "line":
        lineno = frame.f_lineno
        filename = frame.f_globals["__file__"]
        if (filename.endswith(".pyc") or
            filename.endswith(".pyo")):
            filename = filename[:-1]
        name = frame.f_globals["__name__"]
        line = linecache.getline(filename, lineno)
        print("%s:%s: %s" % (name, lineno, line.rstrip()))
    return traceit

Explanation

See also

• Suggest a Code Improvement:design_traceit.py

• Suggest a better explanation for design_traceit.rst

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