from typing import List, Optional, Tuple def parse(line: str) -> Tuple[str, str]: """Parses import lines for comments and returns back the import statement and the associated comment. """ comment_start = line.find("#") if comment_start != -1: return (line[:comment_start], line[comment_start + 1 :].strip()) return (line, "") def add_to_line( comments: Optional[List[str]], original_string: str = "", removed: bool = False, comment_prefix: str = "", ) -> str: """Returns a string with comments added if removed is not set.""" if removed: return parse(original_string)[0] if not comments: return original_string unique_comments: List[str] = [] for comment in comments: if comment not in unique_comments: unique_comments.append(comment) return f"{parse(original_string)[0]}{comment_prefix} {'; '.join(unique_comments)}"