在NAO机器人Choregraphe中导入requests模块遇ImportError: cannot import name utils

Hey there, let's break down why you're hitting this ImportError: cannot import name utils issue when trying to use the requests module in your NAO robot's Choregraphe project. Here are the most likely causes and fixes to get you back on track:

Common Causes #

• Misplaced Dependencies: It looks like you moved dependency packages inside the requests folder, which messes up the module structure. Requests expects its core dependencies (like urllib3, certifi, chardet) to exist at the same level as the requests folder, not nested inside it. This confuses Python's module resolver when it tries to find requests.utils.
• Incomplete Requests Package: If the requests folder you copied doesn't include its own utils subfolder (with all necessary .py files including __init__.py), the import will fail. This can happen if you downloaded a partial package or accidentally deleted files during extraction.
• Python Version Mismatch: Choregraphe uses a specific Python version tied to your NAOqi version (older NAO robots often use Python 2.7, newer ones may use Python 3.x). If you downloaded a requests version that doesn't support your Choregraphe's Python version (e.g., Requests 3.x for Python 3+ on a Python 2.7 setup), the module structure will be incompatible.

Step-by-Step Fixes #

1. Fix Your Lib Folder Structure
   Restructure your lib directory so requests and its dependencies are at the same level, not nested. It should look like this:

   lib/
   ├── requests/
   │   ├── utils/
   │   ├── __init__.py
   │   └── ... (other requests submodules/files)
   ├── urllib3/
   ├── certifi/
   └── chardet/  # Or charset_normalizer/, depending on your requests version
   

   Remove any dependency folders you added inside the requests directory.

2. Verify Requests Package Completeness
   Open your requests folder and confirm there's a utils subfolder with files like __init__.py, cookies.py, encoding.py, etc. If it's missing, re-download the full source package for your target Python version, extract it, and copy the complete requests folder to your lib directory.

3. Match Python Versions

   • Check your Choregraphe's Python version: Go to Help > About Choregraphe to find the NAOqi version, then look up which Python version it uses (e.g., NAOqi 2.5 uses Python 2.7, NAOqi 2.9+ uses Python 3.7).
   • Download the corresponding requests version: For Python 2.7, use Requests 2.27.x (the last version supporting Python 2). For Python 3.x, use the latest compatible version.
   • Ensure your dependencies (urllib3, certifi, etc.) also support the same Python version.

4. Test Imports Gradually
   In your Choregraphe Python script, test imports one by one to isolate issues:

   import urllib3  # First confirm dependencies work
   import certifi
   import requests  # Then try requests
   

   If a dependency fails to import, that's likely the root cause—double-check you have the right version of that dependency in your lib folder.

内容的提问来源于stack exchange，提问作者Federico Giuriato