exceptions.py 文件源码

def print_exception(e, full=True, cause=False, traceback=None):
    """
    Prints the exception with nice colors and such.
    """
    def format_heading(e):
        return '{0}{1}: {2}'.format(
            Colored.red('Caused by ') if cause else '',
            Colored.red(e.__class__.__name__, bold=True),
            Colored.red(e))

    puts(format_heading(e))
    if full:
        if cause:
            if traceback:
                print_traceback(traceback, True)
        else:
            print_traceback()
    if hasattr(e, 'cause') and e.cause:
        traceback = e.cause_traceback if hasattr(e, 'cause_traceback') else None
        print_exception(e.cause, full=full, cause=True, traceback=traceback)