Ubuntu16.04+Anaconda2环境Spyder报ImportError及scipy.io导入失败求助

Hey there! Don't stress—this is a common compatibility hiccup with older Anaconda/Python setups, and we can work through it step by step without needing deep programming know-how.

What's Causing This? #

The root issue is almost certainly version mismatches or a corrupted library installation:

• Anaconda2 runs on Python 2.7, which is no longer supported by most modern libraries. Spyder or scipy might have updated versions that dropped Python 2.7 support, leading to missing modules like constants.
• Sometimes, during installation or updates, library files get corrupted or go missing, triggering those annoying import errors.

Step-by-Step Fixes #

Let's start with the simplest solutions first:

1. Update All Anaconda Packages #

Updating can patch broken dependencies and replace outdated files. Here's how:

• Open your Ubuntu terminal (press Ctrl+Alt+T).
• Type this command and hit Enter:

  conda update --all
  

• When asked to confirm the update, type y and hit Enter. Let the process finish—it might take a few minutes.

2. Reinstall Spyder and Scipy #

If updating doesn't fix things, reinstalling these tools will replace any corrupted files:

• In the terminal, first remove the problematic packages:

  conda remove spyder scipy
  

• Type y to confirm when prompted.
• Then reinstall them:

  conda install spyder scipy
  

• Again, confirm with y and wait for the installation to wrap up.

3. Create a Fresh Virtual Environment (If All Else Fails) #

Sometimes the main Anaconda environment gets cluttered with conflicting packages. A virtual environment gives you a clean, isolated space just for Spyder and scipy:

• In the terminal, create a new environment with Python 2.7, Spyder, and scipy pre-installed:

  conda create -n spyder_env python=2.7 spyder scipy
  

• Confirm with y and wait for the setup to complete.
• Activate the new environment:

  source activate spyder_env
  

• Now launch Spyder from this clean environment:

  spyder
  

After trying these steps, your Spyder should run without the constants import error, and scipy.io should work as expected.

内容的提问来源于stack exchange，提问作者user9321761