utils.py 文件源码

def warn_with_traceback(message, category, filename, lineno, file=None, line=None):
    """Get full tracebacks when warning is raised by setting

    warnings.showwarning = warn_with_traceback

    See also
    --------
    http://stackoverflow.com/questions/22373927/get-traceback-of-warnings
    """
    import warnings
    import traceback
    traceback.print_stack()
    log = file if hasattr(file, 'write') else sys.stderr
    settings.write(warnings.formatwarning(message, category, filename, lineno, line))