A function decorator: You can create a decorator that handles the connection and cursor creation and passes the cursor to the decorated function.

import sqlite3
from functools import wraps

DB_FILE = "your_database_file.db"

def with_cursor(func):
    @wraps(func)
    def wrapper(*args, **kwargs):
        conn = sqlite3.connect(DB_FILE)
        cursor = conn.cursor()

        result = func(cursor, *args, **kwargs)

        conn.commit()
        cursor.close()
        conn.close()

        return result

    return wrapper

@with_cursor
def insert_post_to_db(cursor: sqlite3.Cursor, issue: Issue, lemmy_post_id: int) -> None:
    cursor.execute(
        "INSERT INTO posts (issue_url, lemmy_post_id, issue_title, issue_body) VALUES (?, ?, ?, ?)",
        (issue.url, lemmy_post_id, issue.title, issue.formatted_body),
    )