for loop

Question

Hi all, I tryed to code something in pyhton, but have a challenge with a for loop.
the function "find_CUA_in03" works well on the fist iteration, it picks up the "condition" from vlookup_obj and find the correct items in the "read_object" and they are wroten correctly in the "write_obj", but when "condition" chenge on second cycle it seems the "write_with_condition" is not run.
I know there are milion of ways to do the same but if you would like to help me please stay with the code <i wrote below:

def write_with_condition(read_obj, write_obj, condition):
# """ In a file, find the lines with "condition" and write in an other file"""
for line in read_obj:
if condition in line:
write_obj.write(line)
print(line)

def find_CUA_in02(original_file, condition):
# Create name of dummy / temporary file
only_CUA = original_file + '_CUA.txt'
# Open original file in read only mode and dummy file in write mode
with open(original_file, 'r') as read_obj, open(only_CUA, 'w') as write_obj:
# Line by line copy data from original file to dummy file
write_with_condition(read_obj, write_obj, condition)

def find_CUA_in03(original_file, lookup_file):
# Create name of dummy / temporary file
only_CUA = original_file + '_CUA.txt'
# Open original file in read only mode and dummy file in write mode and lookup file in read mode
with open(original_file, 'r') as read_obj, open(only_CUA, 'w') as write_obj, open(lookup_file, 'r') as lookup_obj:
for line in lookup_obj:
condition = line[9:18]
print(line[9:18])
write_with_condition(read_obj, write_obj, condition)

https://code.sololearn.com/c6On8D4Sdf56

Answer 1

You have presented us 3 functions, no main program. Please put your complete code in playground and link it here. Thanks!

Answer 2

not sure we can say I wrote a "program" actually is largely incomplete as I want to debug the function "find_CUA_in03" to have the correct output before going further (and debug other existing issues). However please find in playground each and every line I have wrote so far.

note that "lookup_file" do not exist at the begining, it is the output of "find_CUA_in02".

https://code.sololearn.com/c6On8D4Sdf56