Find the most common word in song and replace it

Solution

deffind_highest_occurring(name):

“”” This function returns the highest-occurring word

in file lyrics.txt. The function uses a dictionary to

store the count of each word. “””

count = dict()

f = open(name, ‘r’)

for line in f:

words = line.strip().split()

for word in words:

count[word] = count.get(word, 0) + 1

f.close()

# get the most common word (saved into target)

target = None

for word, cnt in count.items():

if target == None or count[target] <cnt:

target = word

return target

def replace(fname1, oldword, fname2, newword):

“”” replace the old word with the new word in the first file. “””

f1 = open(fname1, ‘r’)

f2 = open(fname2, ‘w’)

for line in f1:

words = line.strip().split()

# replace the old word with the new word

for i in range(len(words)):

if words[i] == oldword:

words[i] = newword

# merge the words back to a line and save into the new file

line = ‘ ‘.join(words)

f2.write(line + “\n”)

f1.close()

f2.close()

if __name__ == ‘__main__’:

old = find_highest_occurring(‘lyrics.txt’)

# ask the user to enter the word to replace

print (‘The most common word:’, old)

new = input (‘Which word do you want to replace the most common word with: ‘)

# replace and save the output to a file

replace(‘lyrics.txt’, old, ‘new_lyrics.txt’, new)

print (‘The file is saved as’, ‘new_lyrics.txt’, ‘…’);