【python】读取.env文件 configparser.MissingSectionHeaderError: File contains no section headers.

矫情吗；* 2024-03-25 20:34 36阅读 0赞

通过configparser模块读取`.env`文件出现这个报错，找了一圈都没找到实际是哪里发生的，看网上其他文章也是有这个报错，但是没有给出实际的解决方法，再回过头来仔细看，大概看报错是在读文件的时候出的错误：

Traceback (most recent call last):
      File "D:\code\qt_demo\demo\env_demo.py", line 50, in <module>
        res = load_env_all()
      File "D:\code\qt_demo\demo\env_demo.py", line 38, in load_env_all
        config.read(".env", encoding='utf-8-sig')
      File "D:\Software_install\python39\lib\configparser.py", line 697, in read
        self._read(fp, filename)
      File "D:\Software_install\python39\lib\configparser.py", line 1085, in _read
        raise MissingSectionHeaderError(fpname, lineno, line)
    configparser.MissingSectionHeaderError: File contains no section headers.
    file: '.env', line: 1
    'OPENAI_API_KEY = "aaa"'

.env

OPENAI_API_KEY = "aaa"

env\_demo.py

import configparser
    
    
    def load_env_all():
        # Load environment variables from .env file
        config = configparser.ConfigParser()
        # config.read(".env",encoding='utf-8')
        config.read(".env", encoding='utf-8-sig')
    
        # Get all items from the .env file
        items = dict(config.items("default"))
        print("items")
        # Return items as a dictionary
        return items
    
    
    if __name__ == '__main__':
        # res = load_env()
        # res = load_all()
        res = load_env_all()
        print(res)

第一次用这个模块没啥经验，看到都有点脸红，看人家给的demo中env文件格式跟我的不大一样：

[test]
    test = "aaa"

估计我也是这里有点异常，安装这个格式顺手改改看，没成想，还真改好，真可谓妙手回春

[db]
    OPENAI_API_KEY = "aaa"
    
    [default]
    OPENAI_API_KEY = "aaa"

运行代码的结果：

{
        'openai_api_key': '"aaa"'}

打工人，打工魂，打工人就人上人~~~~~  
周末愉快~