25 lines
1.0 KiB
Python
25 lines
1.0 KiB
Python
# List Comprehensions is a very powerful tool, which creates a new list based on another list, in a single, readable line.
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# For example, let's say we need to create a list of integers which specify the length of each word in a certain sentence, but only if the word is not the word "the".
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sentence = "the quick brown fox jumps over the lazy dog"
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words = sentence.split()
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word_lengths = []
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for word in words:
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if word != "the":
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word_lengths.append(len(word))
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print(words)
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print(word_lengths)
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#Using a list comprehension, we could simplify this process to this notation
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sentence = "the quick brown fox jumps over the lazy dog"
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words = sentence.split()
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word_lengths = [len(word) for word in words if word != "the"]
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print(words)
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print(word_lengths)
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# Exercise
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# Using a list comprehension, create a new list called "newlist" out of the list "numbers", which contains only the positive numbers from the list, as integers.
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numbers = [34.6, -203.4, 44.9, 68.3, -12.2, 44.6, 12.7]
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newlist = [int(number) for number in numbers if number > 0]
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print(newlist) |