파일명 정렬 - python(programmers)

https://programmers.co.kr/learn/courses/30/lessons/17686#

def seperate(file):
    head = ''
    number = ''
    tail = ''
    complete = False
    idx,j = 0,0
    for idx,f in enumerate(file):
        if f.isdigit():
            break
        else:
            head += f
    for j, f in enumerate(file):
        if j >= idx:
            if f.isdigit()== False:
                tail= file[j:]
                break
            complete = True
            number +=f
    else:
        tail = ''
    
    
    
    
    return head, number ,tail
        
        
def solution(files):
    answer = []
    temp = []
    for file in files:
        head, number, tail =seperate(file)
        temp.append([head,number,tail])
    
    temp.sort(key = lambda x : (x[0].upper(), int(x[1])))
    print(temp)
    for t in temp:
        answer.append(''.join(t))
    #
    return answer