PYTHON3; DO NOT IMPORT ANY PACKAGES

Please do all of number 1

1.

a)

Create a function that reads in a file and returns a single dictionary with the counts of all characters (including letters, numbers, spaces or any other characters) in this file.

Note that the new line character at the end of each line should also count. In the doctest, escape it once more (write as \ ).

For Windows users: If your output dictionary contains an extra " " key, you can manually delete this key before returning the dictionary. It is an operating system implementation difference that you should not worry about.

def count_letters(inpath):

"""

>>> count_letters("infiles/blank.txt")

{}

>>> count_letters("infiles/input1.txt")

{'H': 1, 'e': 1, 'l': 2, 'o': 1, ' ': 1, '.': 1, '\ ': 1, 'a': 5}

>>> count_letters("infiles/input3.txt")

{'a': 3}

"""

# YOUR CODE GOES HERE #

b)

Create a function that reads multiple files and returns a single dictionary with the counts of all characters in all files combined. You should reuse the count_letters() function you just implemented.

Note: Be careful if you are trying to use the dict.update() function, as it may not have the functionality that you intend. You can read the hyperlinked article above to see what .update() does.

def count_letters_multiple_files(*inpaths):

"""

>>> count_letters_multiple_files("infiles/input1.txt",

... "infiles/blank.txt")

{'H': 1, 'e': 1, 'l': 2, 'o': 1, ' ': 1, '.': 1, '\ ': 1, 'a': 5}

>>> count_letters_multiple_files("infiles/input2.txt")

{'z': 7, '\ ': 6}

>>> count_letters_multiple_files('infiles/blank.txt',

... 'infiles/input2.txt', 'infiles/input3.txt')

{'z': 7, '\ ': 6, 'a': 3}

"""

# YOUR CODE GOES HERE #