确保conda环境内的Py不会污染系统

(a1Train) wxxxe@wxxe-MS-7D88:~/Document/a1Training/walk-these-ways$ pip -V
pip 22.1.2 from /home/xxxe/miniconda3/envs/a1Train/lib/python3.8/site-packages/pip (python 3.8)

which python
/home/xxxx/miniconda3/envs/a1Train/bin/python

which pip
/home/xxx/miniconda3/envs/a1Train/bin/pip

pip -V
pip 25.0.1 from /home/xx/.local/lib/python3.8/site-packages/pip (python 3.8)

这说明被导入的 pip 模块来自用户级目录 ~/.local/...，而不是 conda 环境内。这种情况下虽然命令来自 a1Train，但实际的 pip 包是全用户共享的版本------容易让安装位置和依赖"跑偏"。

禁用 user site

conda activate a1Train
mkdir -p "$CONDA_PREFIX/etc/conda/activate.d"
cat > "$CONDA_PREFIX/etc/conda/activate.d/disable_user_site.sh" <<'EOF'
export PYTHONNOUSERSITE=1
EOF