Python 列表仅包含数字整数或字符串

Question

I need to check if a list contains only digits of int or str.

ex:

[3, 34, "45", 7, "3"]

would return true

and ["3" "hello", 9]

would return false

I know that the .isdigit() function cannot be used with a list containing int

Answer 1

Simply try this one-linear pythonic solution:

>>> all(map(lambda x: str(x).isdigit(), [3, 34, "45", 7, "3"]))
True
>>> all(map(lambda x: str(x).isdigit(), ["3" "hello", 9]))
False

Answer 2

your_list = [3, 34, "45", 7, "3"]
def foo(e): 
    try: 
        int(e) 
        return True 
    except ValueError: 
        return False

all(map(foo, your_list))