Anaconda环境运行特定.py文件报错：Python路径不存在？

Hey there, let's tackle this issue step by step. The error clearly points to PyCharm trying to access a Python interpreter path that doesn't exist anymore—even though your Anaconda Python 2.7 and 3.6 environments seem to work fine. Here's what you can do to fix it:

1. Verify the actual path of your Anaconda Python 2.7 environment #

First, let's confirm where your working Python 2.7 interpreter is actually located:

• Open your terminal (Terminal app on macOS)
• Activate your Python 2.7 environment with:

  source activate Py2.7
  

  (Note: If you're using a newer Conda version, you might need conda activate Py2.7 instead)
• Run the following command to get the real interpreter path:

  which python
  

  Save this path—we'll use it later to update PyCharm's configuration.

2. Update PyCharm's Run Configuration #

PyCharm is still referencing the old, broken path for your eigenfaces script. Let's fix that:

• In PyCharm, click the run configuration dropdown in the top-right corner (it should show "eigenfaces" right now)
• Select Edit Configurations...
• In the window that pops up, locate your eigenfaces configuration in the left sidebar
• Look for the Python interpreter field near the top. Check if the path matches what you got from the terminal.
  • If it doesn't, click the dropdown menu and select your Python 2.7 environment from the list.
  • If the environment isn't listed, click Show All... then the + button to add it manually, pasting the path you copied earlier.
• Click Apply then OK to save the changes. Try running the script again.

3. Fix potential Anaconda environment corruption #

If the path from the terminal doesn't match what PyCharm was using, your environment might have been damaged during the system crash. You can recreate the environment safely:

• Deactivate the current environment first:

  source deactivate
  

• Remove the old Py2.7 environment (optional but clean):

  conda remove -n Py2.7 --all
  

• Create a fresh Python 2.7 environment:

  conda create -n Py2.7 python=2.7
  

• Activate the new environment and reinstall any dependencies your project needs (e.g., if you have a requirements.txt file):

  source activate Py2.7
  pip install -r /Users/luka/Dropbox/Luka/Data Analysis/Data Science Nanodegree/P5/ud120-projects-master/pca/requirements.txt
  

• Go back to PyCharm's run configuration and select this fresh environment as the interpreter.

4. Check Dropbox directory permissions #

Since your project is stored in a Dropbox folder, there's a chance file permissions are preventing PyCharm from accessing the interpreter or script properly:

• Try copying the entire pca directory to a local folder outside Dropbox (e.g., /Users/luka/Documents/pca)
• Open the copied project in PyCharm and try running the script again. If it works, the issue was related to Dropbox's permissions or syncing.
• If you want to keep using the Dropbox version, you can adjust permissions with this terminal command:

  chmod -R 755 /Users/luka/Dropbox/Luka/Data Analysis/Data Science Nanodegree/P5/ud120-projects-master/pca
  

内容的提问来源于stack exchange，提问作者Trgovec