Check for repeated phrases

check-for-repeats.py

# Function to check if the text contain a repeated phrase
def repeats(s, num):
  substrings = {}
  parts = s.split(' ')
  does_repeat = False
  for i in range(len(parts)-num):
    substring = parts[i]
    for j in range(1, num):
      substring += ' ' + parts[i+j]
    if substring in substrings:
      return True
    else:
      substrings[substring] = True
  return False