Question

I need to replace a word AAAA in a file using dictionary:

dictionary.txt

AXF1
ZCFA
ZCCC

Dictionary is about 1500 words.
I need to replace AAAA by AXF1 then I need to find next AAAA and replace by ZCFA…
Any idea how can I do this? Everything that I have found is how to replace like this:

AAA1:AXF1
AAA2:ZCFA
etc...

Answer 1

Something like:

# Read dictionary into memory
dictionary = [line.strip() for line in open('dictionary.txt')]

# Assuming a bit of a wrap around may be required depending on num. of AAAA's
from itertools import cycle
cyclic_dictionary = cycle(dictionary)

# Read main file
other_file = open('filename').read()

# Let's replace all the AAAA's
import re
re.sub('A{4}', lambda L: next(cyclic_dictionary), other_file, flags=re.MULTILINE)