Code-Signals/level27.py at main · iqbalmdkaify/Code-Signals · GitHub

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# Correct variable names consist only of English letters, digits and underscores and they can't start with a digit.

# Check if the given string is a correct variable name.

# this solution has errors 230/300

# def solution(name):
#     res = []
#     if name.isspace():
#         return False
#     for i in range(len(name)):

#         if i==0:
#             if name[0].isdigit() or name[0].isspace():
#                 res.append(False)
#         elif i>0:
#             if name[i]=='_' or name[i].isalnum():
#                 res.append(True)
#             elif name[i]!='_' or not(name[i].isalnum()) or name[i].isspace():
#                 res.append(False)


#     return all(res)

# alternate solution

def solution(name):
    var = True

    if name.isspace():
        return False
    elif name == '':
        return False
    elif name[0].isdigit():
        return False

    ls = [k for k in name]
    for k in range(len(ls)):
        if not (ls[k].isalpha() or ls[k].isdigit() or ls[k]=="_"):
            var = False

    return var