在Python 的try ... except Exception ...中显示traceback:

1

2

3

4

5

6

import traceback

try:

   1 + 'a'

except Exception as e:

tb = traceback.format_exc()

print(tb)

输出如下：

1

2

3

Traceback (most recent call last):

File "<stdin>", line 2, in <module>

TypeError: unsupported operand type(s) for +: 'int' and 'str'

这个功能在多层try ... except Exception ... 嵌套的时候特别有用。