Conda and Python Setup for Non-ASCII Windows Usernames

Background

When your Windows username contains non-ASCII characters (Japanese, Chinese, etc.), conda cannot be installed in the default user directory path. This will cause a common conda init inside that path cannot setup terminal automatically. This guide shows how to setup conda scripts manually.

Installation Setup

1. Install Conda in ASCII-only Path

• Install conda in a path without non-ASCII characters, such as C:\miniconda

2. Configure Conda script and PowerShell Profile

Since conda's automatic initialization may not work properly with non-ASCII usernames, you need to manually configure PowerShell:

1. Create/edit PowerShell profile:

   notepad $PROFILE

If the file doesn't exist, create it when prompted.

1. Add conda initialization to the profile file:
   $ENV:PATH = "C:\miniconda\condabin;" + $ENV:PATH
   Replace C:\miniconda with your actual conda installation path.

2. Save and restart PowerShell

3. Set execution policy (run PowerShell as Administrator)(needed in some cases):
   

   Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

3. Verify Installation

After restarting PowerShell, you should see (base) in your prompt, indicating conda is active.

Environment Management

Creating and Using Virtual Environments

# Create new environment with specific Python version
conda create -n myenv python=3.12

# Activate environment
conda activate myenv

# Verify Python version
python -V

# Install packages
conda install package_name
# or
pip install package_name

# Deactivate environment
conda deactivate