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Python Virtual Environment

Tutorials
uv
  • 官網: uv
  • 安裝不需要 root
# Install with curl or wget
curl -LsSf https://astral.sh/uv/install.sh | sh
wget -qO- https://astral.sh/uv/install.sh | sh

# Instal with pip
pip install uv
# To install the latest Python version:
uv python install

# To install a specific Python version:
uv python install 3.12

Pixi
Miniconda
# Install
mkdir -p ~/miniconda3
wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda3/miniconda.sh
bash ~/miniconda3/miniconda.sh -b -u -p ~/miniconda3
rm ~/miniconda3/miniconda.sh

# Post-Install
source ~/miniconda3/bin/activate
conda init --all

# Verify
conda list
conda --version

# Optional: Uninstall
conda deactivate
~/miniconda3/uninstall.sh
Conda
# Create a virtual env
conda create -n myproj python=3.11

# Activate the virtual env
conda activate myproj

# Deactivate the virtual env
conda deactivate
Python 3.4+ built-in venv
# Install venv
sudo apt install python3-venv

# Enable venv
mkdir myproject
cd myproject
python -m venv .venv

# Activate the venv
source .venv/bin/activate

# Delete the venv
deactivate
rm -rf .venv

# Change the App directory after activating venv
cd /path/to
mv old new
cd new/.venv/bin
old_path="/path/to/old/.venv"
new_path="/path/to/new/.venv"
find ./ -type f -exec sed -i "s|$old_path|$new_path|g" {} \;
cd /path/to/new
source .venv/bin/activate
virtualenv and virtualenvwrapper
# Installing virtualenv and virtualenvwrapper
sudo pip install virtualenv virtualenvwrapper

# Update the profile ~/.bashrc
# Add the  following lines

# Python virtualenv and virtualenvwrapper
export WORKON_HOME=$HOME/.virtualenvs
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
source /usr/local/bin/virtualenvwrapper.sh

# Reload the profile
source ~/.bashrc

# Creating python virtual environment
# The py3cv3 is a self-defined name 
mkvirtualenv py3cv3 -p python3

# Enter the specified virtual environment
workon py3cv3

# Exit the the specified virtual environment
deactivate

# List all of the environments.
lsvirtualenv

# Remove an environment
rmvirtualenv py3cv3
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