Revision of dict-count.py

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1 file changed, 28 insertions

dict-count.py(fájl létrehozva)

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1	+	# You need to write a loop that counts the occurrences of each word in a list.
2	+	#
3	+	# Consider, if you had a big str that was a text, like say: https://zcw.guru/kristofer/hamlet
4	+	#
5	+	# strive to be "pythonic" in your code expressions, okay?
6	+
7	+	colors = ["red", "green", "blue", "green", "red", "green"]
8	+
9	+	# Not Pythonic Code
10	+	d = {}
11	+	for color in colors:
12	+	if color not in d:
13	+	d[color] = 0
14	+	d[color] += 1
15	+
16	+	# Pythonic Code
17	+	d = {}
18	+	for color in colors:
19	+	d[color] = d.get(color, 0) + 1 # notice, no need for if
20	+
21	+	# Another Pythonic Code
22	+	from collections import defaultdict
23	+	d = defaultdict(int)
24	+	for color in colors:
25	+	d[color] += 1
26	+
27	+	# code output
28	+	# {'red': 2, 'green': 3, 'blue': 1}

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