How do I read and process each line of the input.txt file

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Here is my code it currently only process and prints last line of input.txt file. I need it to process and print each line in text file.

Python

from cryptotools.BTC.HD import check, WORDS

with open("input.txt", "r") as a_file:
  for line in a_file:

    stripped_line = line.strip()    

    
for word in WORDS:        
    mnemonic = stripped_line.format(x=word)
    if check(mnemonic):
        print(mnemonic)
        
with open("print.txt", "a") as i:
            i.write(mnemonic)

Input file input.txt consist of
meat wrestle venue {x} act ostrich noise suggest happy violin nature ginger
riot execute army {x} wood journey harbor vessel critic human slim primary
easy famous update {x} magnet secret speak grab skirt tribe mushroom wrestle

What I have tried:

I have tried all types of .readlines() examples on python. Sorry, I am newbie with obsession to learn.

Posted 15-Aug-21 23:50pm

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Updated 16-Aug-21 0:22am

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Richard MacCutchan 16-Aug-21 6:16am

I suspect that your indentation is not correct. But since you have not explained what the problem is I may be wrong.

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Richard Deeming · Accepted Answer · 2021-08-16T00:14:00

You need to indent your code properly. Your second for loop is currently outside of the first loop, and the final with/write block is outside of both. From your description, you need everything to execute within the first loop.

Python

with open("input.txt", "r") as a_file:
    for line in a_file:
        stripped_line = line.strip()
        for word in WORDS:
            mnemonic = stripped_line.format(x=word)
            if check(mnemonic):
                print(mnemonic)
                with open("print.txt", "a") as i:
                    i.write(mnemonic)

NB: If you want to write each mnemonic value on a new line in the output file, then you need to write a line separator after each one:

Python

...
                with open("print.txt", "a") as i:
                    i.write(mnemonic)
                    i.write('\n')

Built-in Functions — Python 3.9.6 documentation[^]

How do I read and process each line of the input.txt file

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