基于python traceback实现异常的获取与处理

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())

*** <class 'ZeroDivisionError'> division by zero ***


***traceback.print_exc():*** 
Traceback (most recent call last):
 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 42, in <module>
  func(1, 0)
 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 33, in func
  return a / b
ZeroDivisionError: division by zero


***traceback.format_exc():*** 
Traceback (most recent call last):
 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 42, in <module>
  func(1, 0)
 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 33, in func
  return a / b
ZeroDivisionError: division by zero


***traceback.print_exception():*** 
Traceback (most recent call last):
 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 42, in <module>
  func(1, 0)
 File "E:/HttpRunnerManager-jh/ApiManager/tests.py", line 33, in func
  return a / b
ZeroDivisionError: division by zero

logging.exception(ex)

# 指名输出栈踪迹, logging.exception的内部也是包了一层此做法
logging.error(ex, exc_info=1) 

# 更加严重的错误级别 
logging.critical(ex, exc_info=1) 

# 我直接copy的，未尝试。有时间会试下的

  try:
    func(1, 0)
  except Exception as e:
    import cgitb
    cgitb.enable(format='text')
    func(1, 0)