List all uninstalled import and add them to a requirement.txt file

create_requirement.py

import os
import importlib

all_imports = set()
for file in [filename for filename in os.listdir(os.path.curdir) if filename.endswith('.py')]:
    with open(file, 'r') as current_file:
        for line in current_file.readlines():
            if line.startswith('import') or line.startswith('from'):
                all_imports.add(line.split()[1])

with open('requirements.txt', 'a') as requirement_txt:
    for i in all_imports:
        try:
            _ = importlib.import_module(i)
        except ModuleNotFoundError:
            requirement_txt.write(f'{i}\n')