3 examples of 'python count frequency in list' in Python

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19def freq_counter(lst):
20 c = Counter()
22 for i in lst:
23 c[i] += 1
25 return c

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34def _count(lst):
35 out = {}
36 for l in lst:
37 out[l] = out.setdefault(l, 0) + 1
39 return out
231def items_by_frequency(freqdist):
232 """Sort a dictionary by frequency. Return as a list of pairs.
233 """
234 frequency = lambda x: x[1]
235 return sorted(iter(list(freqdist.items())), key=frequency, reverse=True)

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