Hey there, sorry to hear you're stuck with Spyder's autocomplete failing to pop up when you type something like pd. after importing pandas. Let's go through some tried-and-true fixes that usually get this working again:

• Check Spyder's autocomplete settings are enabled
  Open Spyder, head to Tools → Preferences from the top menu. Navigate to the Completion and linting section. Make sure both Enable code completion and Show completion suggestions automatically are checked. Also, in the Advanced settings tab, confirm Enable Jedi-based completion is turned on—Jedi is the engine that powers autocomplete in Spyder 3.x. Restart Spyder after making any changes.

• Reinstall or roll back the Jedi library
  Spyder 3.3.4 relies on a specific version of Jedi (around 0.13.3) for reliable autocomplete. If your Jedi version is too new or corrupted, it can break the feature. Open either Command Prompt or Anaconda Prompt (whichever matches your Spyder setup) and run:

  pip install --upgrade jedi==0.13.3
  

  Once installed, restart Spyder to test the autocomplete.

• Clear Spyder's cached files
  Corrupted cache files often cause autocomplete glitches. First, close Spyder completely. Then navigate to C:\Users\[YourUsername]\.spyder-py3 (replace [YourUsername] with your actual Windows username). Delete any .db files and the autocomplete subfolder here. When you reopen Spyder, it will rebuild the cache from scratch.

• Verify your Python environment is correctly set up
  Make sure Spyder is using the same Python environment where you installed pandas. Click the Python version number in the bottom-right corner of Spyder, select Change interpreter, and pick the environment that has pandas installed. You can confirm pandas is present by running pip list or conda list pandas in your environment's terminal. Restart Spyder after switching environments if needed.

• Force-reinstall Spyder
  If none of the above works, your Spyder installation might be corrupted. Use the appropriate command for your setup:

  • For Anaconda users:

    conda install --force-reinstall spyder=3.3.4
    

  • For pip users:

    pip install --force-reinstall spyder==3.3.4
    

  After reinstalling, restart your computer and launch Spyder again.

内容的提问来源于stack exchange，提问作者prem Rexx