conda Verified current stable Not installed? Package Management

Conda / Show Dependents

Show Dependents

Identify packages that depend on a specific Conda package.

$
Terminal
conda repoquery whoneeds <package>

When To Use

When evaluating the impact of removing or updating a package in your environment.

Pro Tip

Utilize the '--reverse' flag for an instant overview of what will break if a package is removed.

Command Builder

Tune the command before you copy it

Back to syntax
$
Generated Command
conda repoquery whoneeds <package>

Terminal Output

Expected runtime feedback

Simulated preview
>
Output
\033[1m\033[34mPackage Dependencies\033[0m
\033[32mpackageA\033[0m    packageB
\033[32mpackageA\033[0m    packageC
\033[32mpackageB\033[0m    packageD
\033[32mpackageC\033[0m    packageE

Anatomy of Output

Understanding the result

Package 'scikit-learn' is required by: numpy, pandas Dependent Packages

Lists all packages that rely on the specified package.

numpy (1.19.5), pandas (1.1.5) Installed Dependent Versions

Indicates the current versions of dependent packages present.

Channel: defaults Source Channel

Identifies the channel source of the dependents.

Power User Variants

Optimized versions

conda repoquery whoneeds 'scikit-learn' --recursive

Find all packages that depend on scikit-learn recursively.

conda repoquery whoneeds 'scikit-learn' --channel conda-forge

Display dependents from a specific channel.

conda repoquery whoneeds 'scikit-learn' --exact

Find dependents with exact version requirements.

Troubleshooting

Common pitfalls

PackageNotInstalledError: No packages rely on 'scikit-learn' in the current environment.

Solution: Check if other packages are correctly installed.

PackageNotFoundError: Could not find the requested package.

Solution: Verify spelling and existence of the package on the specified channels.

CondaEnvironmentError: Unable to resolve dependents due to environment issues.

Solution: Ensure the environment is activated and in a valid state.

Command Breakdown

What each part is doing

conda
Base Command
The executable that performs this operation. Here it runs Conda before the shell applies any redirect operators.
<package>
package
The value supplied for package.

How To Run

Execution path

  1. Step 1

    Run the command: `conda repoquery whoneeds packageA`

  2. Step 2

    Verify the output to see which packages depend on packageA.

Alternative Approaches

Comparable commands in other tools

Alternative package management tools for the same job.