How to make an interface for a program that reads one txt, translates through the code and writes to another txt?

Question

Python

In general there is a code

sb.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
The Snowball stemmer.
"""

import re
import unittest


class Stemmer:
    # Helper regex strings.
    _vowel = "[аәоөұүыіеиуёэюя]"
    _non_vowel = "[^аәоөұүыіеиуёэюя]"

    # Word regions.
    _re_rv = re.compile(_vowel)
    _re_r1 = re.compile(_vowel + _non_vowel)

    # Endings.

    _re_all = re.compile(
        r"(шалық|шелік|даған|деген|таған|теген|лаған|леген|"
  r"дайын|дейін|тайын|тейін|"
        r"ңдар|ңдер|дікі|тікі|нікі|атын|етін|йтын|йтін|"
  r"гелі|қалы|келі|ғалы|шама|шеме|"
  r"мын|мін|бын|бін|пын|пін|мыз|міз|быз|біз|пыз|піз|сың|сің|"
  r"сыз|сіз|ңыз|ңіз|дан|ден|тан|тен|нан|нен|нда|нде|дың|дің|тың|"
  r"тің|ның|нің|дар|дер|тар|тер|лар|лер|бен|пен|мен|"
  r"дай|дей|тай|тей|дық|дік|тық|тік|лық|лік|паз|"
  r"ғыш|гіш|қыш|кіш|шек|шақ|шыл|шіл|нші|ншы|дап|деп|"
  r"тап|теп|лап|леп|даc|деc|таc|теc|лаc|леc|ғар|гер|қар|кер|дыр|"
  r"дір|тыр|тір|ғыз|гіз|қыз|кіз|ған|ген|қан|кен|"
  r"ушы|уші|лай|лей|сын|сін|бақ|бек|пақ|пек|мақ|мек|йын|йін|йық|йік|"
  r"сы|сі|да|де|та|те|ға|ге|қа|ке|на|не|"
  r"ді|ты|ті|ны|ні|ды|ба|бе|па|пе|ма|ме|"
  r"лы|лі|ғы|гі|қы|кі|ау|еу|ла|ле|ар|ер|"
  r"ып|іп|ша|ше|са|се|"
        r"лақ|лық|"
  r"н|р|п|й|ы|і)$"
    )

    def stem(self, word):
        """
        Gets the stem.
        """

        rv_pos, r2_pos = self._find_rv(word), self._find_r2(word)

        word1 = self._step_1(word, r2_pos)

        while word1 != word:
            word = word1
            word1 = self._step_1(word, r2_pos)
        
        return word1

    def _find_rv(self, word):
        """
        Searches for the RV region.
        """

        rv_match = self._re_rv.search(word)
        if not rv_match:
            return len(word)
        return rv_match.end()

    def _find_r2(self, word):
        """
        Searches for the R2 region.
        """

        r1_match = self._re_r1.search(word)
        if not r1_match:
            return len(word)
        r2_match = self._re_r1.search(word, r1_match.end())
        if not r2_match:
            return len(word)
        return r2_match.end()

    def _cut(self, word, ending, pos):
        """
        Tries to cut the specified ending after the specified position.
        """

        match = ending.search(word, pos)
        if match:
            try:
                ignore = match.group("ignore") or ""
            except IndexError:
                # No ignored characters in pattern.
                return True, word[:match.start()]
            else:
                # Do not cut ignored part.
                return True, word[:match.start() + len(ignore)]
        else:
            return False, word
    
    def _step_1(self, word, r_pos):
        _, word = self._cut(word, self._re_all, r_pos)
        return word


class TestStemmer(unittest.TestCase):
    """
    Tests the stemmer.
    """
    _stemmer = Stemmer()
    
    def test_stem(self):

        with open("diffs-kazak.txt", "rt", encoding="utf-8") as diffs_file:
            diffs = diffs_file.readlines()
        for i, line in enumerate(diffs):
            word, stem = line.split()
            self.assertEqual(
                stem,
                self._stemmer.stem(word),
                "Diff in word: %s (%d/%d)" % (word, i + 1, len(diffs)),
            )


if __name__ == "__main__":
    
     
    """"
    unittest.main()
    """
    stemmer = Stemmer()
    word = "Слово"
    word = stemmer.stem(word)
    print(word)

there is also a text file with words on it, one word - one line.

An example of a text file.

There is a line in the sb.py file. You need to insert each word in turn in the value of the Word variable, and then write it into a new text document, after the function has been executed. I want to make an interface program through pyqt5 designer, so that it can be easily by pressing one button, it would be easy to start the process of passing each word through a function. It would be even cooler if there were two textboxes on the interface and words could be inserted rather than read from txt. The desire is there, but there are no ideas how to implement it. word = "Слово"

Answer 1

https://tproger.ru/translations/python-gui-pyqt/