I am writing a function to check if the importing file/module contains any error. The function for some reasons failed when I use the module name as a variable.

# Work
def importfile1():
    try:
        from test2 import bea
        print('1st scenario:', 'import is successful')
    except:
        print('1st scenario:', 'import failed')
        
importfile1()

# Does not work
def importfile2(bank):
    try:
        from test2 import bank
        print('2nd scenario:', 'import is successful')
    except:
        print('2nd scenario:', 'import failed')
        
importfile2(bea)

I expected both functions to work. However, the second function failed.

The results are shown below:

1st scenario: import is successful
2nd scenario: import failed

May I know why the second function failed?