''' Purpose: examine a list of words
'''

# get text from user
reply = input( 'Enter text: ' )

print()

# split text into words
words = reply.split() # list of words (reply split into list of substrings at spaces)
 
# let's see what we got
print( 'Supplied text =', reply )
print( 'words =', words )

print()

# determine number of words

n = len( words )

# determine total word length

sum_of_word_lengths = 0 # number accumulator

for w in words :
    # get current word's length
    print( 'Loop variable:', w )
    len_w = len( w )
    print( 'Loop variable length:', len_w )
    sum_of_word_lengths = len_w + sum_of_word_lengths # modifying accumulator
    print( 'Sum of lengths so far (accumulator):', sum_of_word_lengths)
    print()
# determine average

average_word_length = sum_of_word_lengths / n # sum_of_word_lengths / len(words)
print( 'Number of words:', n )
print( 'Average word length:', average_word_length )

# RECAP
# Number Accumulator
    # number_accumulator = 0 (addition/subtraction) = 1 (multiplication/division)
    # for ... in ...:
        # number_accumulator = number_accumulator +/-/*// modification (number we're modifying it with)

# example:
    # sum_of_word_lengths = 0
    # for w in words:
        # sum_of_word_lengths = sum_of_word_lengths + len( w )

# modification is adding len(w) each time! Add the current length of the word to
# the current value of the accumulator so far stored in sum_of_word_lengths (the accumulator)