Python For Loop Returns True After First Item

def checker(a_list): for item in a_list: if str(item).isdigit(): return True else: return False The variable I have for checker is a li

Solution 1:

There are usefull built-in fuctions all (and any) for checking multiple conditions:

defchecker(a_list):
    returnall(str(item).isdigit() for item in a_list)

Solution 2:

Don't return True in the loop. In the loop return False if an item is NOT a digit. Move return True after the loop has completed.

defchecker(a_list):
    for item in a_list:
        ifnotstr(item).isdigit():
            returnFalsereturnTrue

Solution 3:

I'm assuming you want to check that all elements of a_list return True as a return value from isdigit().

In this case, use the built-in function all

all(str(s).isdigit() for s in a_list)

for more information on any and all, check out this link on SO: any and all explained

edit: thanks @RoadRunner for pointing out conversion to str as OP had it in it's example he gave.

Solution 4:

This should check if all items in the list are digits

ifall(str(x).isdigit() for x in a_list):
    returnTrueelse:
    returnFalse