python four_letters_in_common.py
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def four_letters_in_common(word,a_dictionary):
count=0
word=word.upper()
word_length = len(word)
if word_length<4:
return count
elif word_length ==4:
for entry in a_dictionary:
entry=entry.upper()
if entry.find(word)!= -1:
count+=1
return count
else:
for entry in a_dictionary:
entry=entry.upper()
length = len(entry)
if length<4:
pass
else:
first_position =0
last_position =4
finalsub=word[-4:-1]
current_substring=word[first_position:last_position]
while True:
if entry.find(current_substring)!= -1:
count+=1
break
else:
first_position +=1
last_position +=1
if last_position>word_length:
break
else:
current_substring=word[first_position:last_position]
return count
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