Simple replace word in place

replace_in_file.py

import os

# https://github.com/first20hours/google-10000-english
CWD = os.path.dirname(os.path.realpath(__file__))
with open(os.path.join(CWD, "google-10000-english.txt")) as f:
    words = [line.strip() for line in f]

# Convert single alphabet letters to their numeric values
for i in range(len(words)):
    word = words[i]
    if len(word) == 1 and word.isalpha():  # Check if the word is a single letter
        numeric_word = str(ord(word) - 96)
        words[i] = numeric_word  # Replace the word in the original list

print(words)

# Write the words to a new file
with open(os.path.join(CWD, "converted_words.txt"), "w") as f:
    for word in words:
        f.write(f"{word}\n")