输入一行字符，分别统计出其中英文字母、空格和其它字符的个数

#输入一行字符，分别统计出其中英文字母、空格和其它字符的个数

import string

s = input('input a string:')
letter = 0
space = 0
digit = 0
other = 0
for c in s:
    if c.isalpha():
        letter+=1
    elif c.isspace():
        space+=1
    elif c.isdigit():
        digit+=1
    else:
        other+=1
print('There are %d letters, %d spaces, %d digits and %d other characters in your string.'\
      %(letter,space,digit,other))