import os


def main():

    # relative path to the folder where you unzipped the ASCII art files
    #folder = "stars"
    # or use an absolute path to the folder. example:
    folder = r"C:UsersAlisonDocumentsa CPS 111Bonus PAstarsstars"

    # os.listdir(folder) returns a list of files in folder
    file_list = os.listdir(folder)
    letter_art = {}

    word = str(input("Please input a letter: "))
    word = word.upper()

    for fname in file_list:

        letter_extension_list = fname.split(".")

    for letter in word:
        key = letter
        value = letter_extension_list[1]
        value = "%s."%(key) + value
        letter_art[key] = value

        fname = "\".join([folder, value])
        print(fname)

        infile = open(fname).read()

        for line in infile.readlines:
            line = line.split()
            if "*" in line:
                print(word.upper())
            else:
                print(word.lower())



    infile.close()



main()

for line in infile.readlines:
AttributeError: 'str' object has no attribute 'readlines'