all Python 3tracebackfunction

traceback.print_stack()

printing tracebacks

Prints the current call stack to stderr — a quick answer to "how did the program get here" without a debugger.

Syntax

traceback.print_stack(f=None, limit=None, file=None)

No exception is needed: the call can go anywhere in the code. Output goes to stderr while print goes to stdout, and when both are redirected to a file their lines may come out of order: stdout is buffered, stderr is not. Pass file=sys.stdout to keep the order. limit=N prints only the N nearest frames.

Examples

import sys, traceback
def handler():
    traceback.print_stack(limit=1, file=sys.stdout)
handler()  # → ? File "…/example.py", line 3, in handler — путь зависит от машины

See also

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