/Python/Count repeated characters in a string python

Count repeated characters in a string python

# Python 3+
import collections
collections.Counter(input_string)

# Python 2 or custom results.
{key: string.count(key) for key in set(string)}

# Other ways are too slow. In the source, You can see the proves.

Source: colab.research.google.com

Check for double character in a string python

count = {}
for s in check_string:
  if s in count:
    count[s] += 1
  else:
    count[s] = 1

for key in count:
  if count[key] > 1:
    print key, count[key]

Source: stackoverflow.com

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