导入错误：无法导入名称'read_json'问题求助（含代码片段）

Let's walk through the most likely issues and fixes to resolve this import error:

1. Watch Out for Built-in Module Name Conflicts #

First off, your module name parser.py is a problem—Python has a built-in parser module for handling Python code parsing. When you write from parser import ..., Python might be pulling from this built-in module instead of your custom parser.py file.

Fix this by:

• Renaming your parser.py to something unique (e.g., data_parser.py)
• Updating the import in metadata.py to match:

  from data_parser import read_json, parser_json
  

2. Double-Check Function Name Spelling #

Looking at your description:

• Your parser.py defines read_json() and parser_json()
• But your import statement uses from parser import read_json, process_json

That's a typo! You're trying to import process_json which doesn't exist—swap it for the actual function name you defined:

from parser import read_json, parser_json  # Use parser_json, not process_json

3. Confirm File Placement and Module Path #

Make sure parser.py and metadata.py are in the same directory. If they're in different folders, add the directory containing parser.py to Python's module search path at the top of metadata.py:

import sys
sys.path.append("/full/path/to/folder-with-parser-file")

4. Check for Syntax Errors in parser.py #

If there's a syntax mistake in parser.py, Python can't fully load the module, which leads to missing function imports. Test this by running parser.py directly:

python parser.py

Fix any syntax errors that show up, then try the import again.

5. Rule Out Circular Imports #

Make sure parser.py isn't importing anything from metadata.py—circular imports can cause partial module loading, leading to missing names.

内容的提问来源于stack exchange，提问作者Darth Veder