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### Exercise 1. Print a list of words of the song
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# + next to each word its position in the sentence
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# Prince, Purple Rain (using a hashtag = making a comment)
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song = "I never meant to cause you any sorrow\n \
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I never meant to cause you any pain\n \
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I only wanted to one time to see you laughing\n \
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I only wanted to see you\n \
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Laughing in the purple rain."
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# each word has a unique number
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pos = 0
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words = song.split()
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for word in words:
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print(word, pos)
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pos += 1
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# index of words, using string method index()
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for word in words:
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print(word, song.index(word))
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### Exercise 2: rewrite song by copying words with r to the beginning of the song
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words_with_r = []
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for word in words:
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if 'r' in word:
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words_with_r.append(word)
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new_text = words_with_r + words
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print(' '.join(new_text))
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### Exercise 3: create an Anaerobe of the song (remove all r’s)
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new_song = []
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for word in words:
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if 'r' in word:
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word = word.replace('r','')
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new_song.append(word)
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else:
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new_song.append(word)
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print(' '.join(new_song))
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