Show Python warnings with full traceback (from: https://stackoverflow.com/questions/22373927/get-traceback-of-warnings)

warn_with_traceback.py

import traceback
import warnings
import sys


def warn_with_traceback(message, category, filename, lineno, file=None, line=None):

    log = file if hasattr(file,'write') else sys.stderr
    traceback.print_stack(file=log)
    log.write(warnings.formatwarning(message, category, filename, lineno, line))

    
warnings.showwarning = warn_with_traceback