使用 sys.exit() 时捕获错误

Question

是否可以捕获生成的错误并将其返回给调用者脚本？

p1.py
def fun1():
    try:
        ...
    except Exception as err:
        print('ERROR from p1.py')
        sys.exit(1)



p2.py
import p1
def fun2():
    try:
        ...
     except Exception as err:
        print('ERROR from p2.py')
        sys.exit(1)
           
p3.py
import p2
#want to catch the errors here
errors1 = 'ERROR from p1.py'
errors2 = 'ERROR from p2.py'

有没有办法从 p3.py 中的 p1.py（'ERROR from p1.py'）或 p2.py（'ERROR from p2.py'）获取错误？

Answer 1

当您在 p3.py 文件中执行 p1.py 和 p2.py 文件的功能时，一种方法可能是在哪里处理异常，您可以在 p3.py 中执行 try-except(而不是在每个函数中捕获异常）：

p3.py

from p1 import fun1
from p2 import fun2

# calling the function from p1.py
try:
  fun1()
except Exception as err:
  print('You have the error from fun1 in p1.py, you can make your logic here')
  sys.exit(1)
# calling function from p2.py
try:
  fun2()
except Exception as err:
  print('You have the error from fun2 in p2.py, you can make your logic here')
  sys.exit(1)