使用PyTorch调用RMSProp优化器遇AttributeError问题求助

Hey there, let's work through this issue step by step. The error you're seeing is almost always tied to a tiny spelling detail, but we'll cover all possible angles to get you up and running.

Most Likely Cause: Incorrect Spelling #

The biggest gotcha here is PyTorch's naming convention for this optimizer: it's RMSprop (lowercase p at the end), not RMSProp (uppercase P). Even though some documentation might use the uppercase version for readability, the actual API requires the lowercase p.

Fixed Code Snippet #

Update your optimizer initialization line to:

self.optimizer = optim.RMSprop(self.parameters(), lr=alpha)

Verify Your PyTorch Environment #

If fixing the spelling doesn't work, let's confirm your environment is set up correctly:

• Check your PyTorch version in the terminal:

  python -c "import torch; print(torch.__version__)"
  

  Make sure it outputs 1.5.1 as expected.
• List all available optimizers in your torch.optim module to confirm RMSprop exists:

  python -c "import torch.optim as optim; print(dir(optim))"
  

  Look for 'RMSprop' in the printed list. If it's missing, you might have a corrupted or incomplete PyTorch installation—try reinstalling it using the official commands for your system.

Fix PyCharm's Missing Auto-Completion #

If PyCharm only shows Adam and SGD in suggestions, it's probably a cache or interpreter configuration issue:

• Clear PyCharm's cache: Go to File > Invalidate Caches... > Invalidate and Restart. This often fixes outdated auto-completion data.
• Recheck your Python interpreter: Ensure PyCharm is using the correct environment where PyTorch 1.5.1 is installed. Go to File > Settings > Project: [Your Project Name] > Python Interpreter and select the right environment from the dropdown.

内容的提问来源于stack exchange，提问作者annow