1. 安装：pip install bibtexparser（pyhton=3.6可用）
2. 运行下述代码即可（实现.bib参考文献去重）

import bibtexparser  # pip install bibtexparser  
from bibtexparser.bwriter import BibTexWriter  
from bibtexparser.bibdatabase import BibDatabase  def remove_duplicates(bib_file_path, output_file_path):  # 读取原始bib文件  with open(bib_file_path, 'r', encoding='utf-8') as bib_file:  bib_database = bibtexparser.load(bib_file)  # 去除重复的条目  unique_entries = []  seen_keys = set()  for entry in bib_database.entries:  key = entry['ID']  if key not in seen_keys:  seen_keys.add(key)  unique_entries.append(entry)  # 创建一个新的BibDatabase  new_bib_database = BibDatabase()  new_bib_database.entries = unique_entries  # 写入新的bib文件  with open(output_file_path, 'w', encoding='utf-8') as output_file:  writer = BibTexWriter()  output_file.write(writer.write(new_bib_database))  if __name__ == "__main__":  bib_file_path = "refs.bib"  # 替换成你的输入文件路径  output_file_path = "new_refs.bib"  # 替换成你的输出文件路径  remove_duplicates(bib_file_path, output_file_path)