Viewing a list of the packages in an environment
- If the environment is not activated, in your terminal window, run: conda list -n myenv.
- If the environment is activated, in your terminal window, run: conda list.
- To see if a specific package is installed in an environment, in your terminal window, run:
To activate a Conda environment from a script, you'll need to use the source activate command (for Unix-based systems) or the activate command (for Windows). However, these commands alone won't work in a script. You need to use them in conjunction with the conda shell command. In this script, the conda shell.To see a list of all of your environments, in your Terminal window or an Anaconda Prompt, run:
- conda info –envs.
- conda env list.
- conda environments: myenv /home/username/miniconda/envs/myenv snowflakes /home/username/miniconda/envs/snowflakes bunnies /home/username/miniconda/envs/bunnies.
How do you start a conda environment : Step-by-Step Guide to Activating Conda Environment from PowerShell
- Step 1: Install Anaconda.
- Step 2: Open PowerShell.
- Step 3: Enable unrestricted Powershell script execution.
- Step 4: Initialize Conda.
- Step 5: Create a Conda Environment.
- Step 6: Activate the Conda Environment.
How do you activate and deactivate a conda environment
A Conda environment is a directory that contains a specific collection of Conda packages that you have installed. You create (remove) a new environment using the conda create ( conda remove ) commands. You activate (deactivate) an environment using the conda activate ( conda deactivate ) commands.
How do I deactivate ENV in conda : Here's a summary of the steps involved in deleting an environment in Conda:
- Deactivate the environment using the conda deactivate command.
- Delete the environment using the conda remove –name ENV_NAME –all command.
You can do this via the command source venv/bin/activate . This uses the 'activate' script located in the 'Scripts' directory of your virtual environment. In this example, we're using the source command followed by the path to the 'activate' script within our virtual environment (named 'venv' in this case).
In most Linux distributions, use Ctrl+Alt+T to open a terminal application. Run one of the following commands to verify your installation was successful: conda list – If Anaconda Distribution is installed successfully, this displays a list of packages installed in your active environment and their versions.
How to activate env Python
Activating a virtual environment in Python is straightforward. You can do this via the command source venv/bin/activate . This uses the 'activate' script located in the 'Scripts' directory of your virtual environment.You create (remove) a new environment using the conda create ( conda remove ) commands. You activate (deactivate) an environment using the conda activate ( conda deactivate ) commands. You install packages into environments using conda install ; you install packages into an active environment using pip install .You can deactivate a virtual environment by typing deactivate in your shell. The exact mechanism is platform-specific and is an internal implementation detail (typically, a script or shell function will be used).
How venvs work
| Platform | Shell | Command to activate virtual environment |
|---|---|---|
| POSIX | csh/tcsh | $ source <venv>/bin/activate.csh |
| PowerShell | $ <venv>/bin/Activate.ps1 | |
| Windows | cmd.exe | C:\> <venv>\Scripts\activate.bat |
| PowerShell | PS C:\> <venv>\Scripts\Activate.ps1 |
How do I create and activate virtualenv : Getting Started
- Create a virtual environment in your current directory for a project with the command: virtualenv my_project. "my_project" is whatever name you would like to give this environment.
- To create a virtual environment with a specific version of python use the command: virtualenv -p /usr/bin/python2.7 my_project.
How to check if conda is installed using cmd : In your terminal window, run the command conda list . A list of installed packages appears if it has been installed correctly.
How do I know if I use PIP or conda
Pip vs Conda: Key Differences
Pip installs packages from the Python Package Index (PyPI), which hosts a vast array of Python libraries. Almost any Python library can be installed using pip. On the other hand, conda installs packages from the Anaconda distribution and other channels.
Choosing the right environment management tool depends on your needs. If you need a simple, easy-to-use tool, venv might be the best choice. If you're dealing with complex dependencies, Conda env is the way to go. If you need to switch between different Python versions, consider pyenv or virtualenv.1 Answer
- Open your ~/. zshrc file in a text editor.
- Look for the block of code that starts with # >>> conda initialize >>> and ends with unset __conda_setup # <<< conda initialize <<< . This is the initialization script for conda.
- Delete this entire block of code.
- Save the file and exit the text editor.
How do I know if my venv is active : How to know I'm using venv Python
- Solution 1: use sys. prefix that points to the Python directory.
- Solution 2 (the better way): VIRTUAL_ENV environment variable. When a virtual environment is activated, this is set to the venv's directory, otherwise it's None.