1、问题描述：
try....except抛出的异常信息太少，没有包含异常发生的具体位置，不方便排查。traceback库能极大的帮助我们，给出更详细的异常信息。
2、解决方法：
1、print_exc()：是对异常栈输出 2、format_exc()：是把异常栈以字符串的形式返回，print(traceback.format_exc()) 就相当于traceback.print_exc() 3、print_exception()：traceback.print_exc()实现方式就是traceback.print_exception(sys.exc_info())，可以点sys.exc_info()进去看看实现
3、举例说明：
测试代码：
def func(a, b): return a / b if __name__ == '__main__': import sys import time import traceback try: func(1, 0) except Exception as e: print('***', type(e), e, '***') time.sleep(2) print("***traceback.print_exc():*** ") time.sleep(1) traceback.print_exc() time.sleep(2) print("***traceback.format_exc():*** ") time.sleep(1) print(traceback.format_exc()) time.sleep(2) print("***traceback.print_exception():*** ") time.sleep(1) traceback.print_exception(*sys.exc_info())
运行结果：
1 *** <class 'ZeroDivisionError'> division by zero *** 2 3 4 ***traceback.print_exc():*** 5 Traceback (most recent call last): 6 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 42, in <module> 7 func(1, 0) 8 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 33, in func 9 return a / b 10 ZeroDivisionError: division by zero 11 12 13 ***traceback.format_exc():*** 14 Traceback (most recent call last): 15 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 42, in <module> 16 func(1, 0) 17 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 33, in func 18 return a / b 19 ZeroDivisionError: division by zero 20 21 22 ***traceback.print_exception():*** 23 Traceback (most recent call last): 24 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 42, in <module> 25 func(1, 0) 26 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 33, in func 27 return a / b 28 ZeroDivisionError: division by zero