When you install a package in Conda, it is downloaded and extracted from a remote directory using the directory's URL. The directory where these packages are stored is known as a channel.
In this article, you'll learn what a channel is, how to use default channels, and how add new channels in Conda.
What Is a Channel in Conda?
A channel is the location where packages are stored remotely.
When you install Conda for the first time, it comes with a channel called
default. You can check that using the command below:
conda config --show channels
default channel enables you to install packages that are currently available in its directory/storage.
To install a package using the
default channel, you use the
conda install command followed by the name of the package. That is:
conda install package-name
Although numerous packages can be installed from the
default channel, it's possible to come across packages that are not accessible from it.
In cases like this, you'd usually get the "PackagesNotFoundError: The following channels are not available from current channels" error message.
You'll see a workaround for that error in the next section.
How To Install a Package in Conda Using a Channel Name
In this section, you'll learn how to install a package that isn't available from the
default channel in Conda by specifying the name of the channel where that package is stored remotely.
You'll also see how to add a channel to your list of channels.
Here's an example using Matplotlib:
conda install -c conda-forge matplotlib
In the command above:
-cflage denotes the word channel.
conda-forgedenotes the name of the channel where Matplotlib was installed from.
Although we installed Matplotlib from
conda-forgewill not be added to our list of channels.
So if you run the
conda config --show channels command, you'd only see the
You can add a channel to the list of channels using the
conda config --add channels channel-name command. That is:
conda config --add channels conda-forge
The command above will add
conda-forge to the list of Conda channels. This means that you don't have to specify the channel name if you are installing a package that is available from the
In this article, we talked about channels in Conda. They are used to access packages remotely.
We saw how to use Conda's default channel to install packages. We also saw how to use and add new channels that aren't built into Conda.