try:
  print(x)
except Exception as e:
  print(e)

try:
  print(x)
except Exception as e:
  print(str(e))

name 'x' is not defined

try:
  print(x)
except Exception as e:
  print(repr(e))

NameError("name 'x' is not defined",)

try:
  print(x)
except NameError:
  print('Exception Type: NameError')
except Exception as e:
  print(str(e))

import traceback

try:
  print(x)
except Exception as e:
  traceback.print_exc()

import traceback

try:
  print(x)
except Exception as e:
  msg = traceback.format_exc()
  print(msg)

Traceback (most recent call last):
 File "E:/study/python/get_exception.py", line 4, in <module>
  print(x)
NameError: name 'x' is not defined

# 写入到 tb.txt 文件中
traceback.print_exc(file=open('tb.txt','w+'))