# File: strtype.py
# Returns the number of types of characters in a string
#
# Matt Bishop, MHI 289I, Winter 2018
#
#
while True:
    # read in a string; quit on EOF
    try:
        instr = raw_input("Enter a string: ")
    except EOFError:
        break
    except:
        print "Unknown error; EOF to end"
        continue
    #
    # put quotes around the string to show its boundaries when it is printed
    #
    prstr = '"' + instr + '"'
    #
    # now test the character types
    #
    if instr.isalpha():
        print prstr, "contains only letters"
    if instr.isalnum():
        print prstr, "contains only alphanumeric characters"
    if instr.isdigit():
        print prstr, "contains only digits"
    if instr.isspace():
        print prstr, "contains only white space"
    if instr.isupper():
        print prstr, "contains only upper case letters"
    if instr.islower():
        print prstr, "contains only lower case letters"