Conda / Show Dependents
Show Dependents
Identify packages that depend on a specific Conda package.
conda repoquery whoneeds <package> conda repoquery whoneeds <package> #!/bin/bash
# Show Dependents
conda repoquery whoneeds {{package}} import subprocess
# Show Dependents
# Make sure to replace <placeholders> with actual values
def run_command():
cmd = [
"conda",
"repoquery",
"whoneeds",
"<package>"
]
try:
print(f"Executing: {' '.join(cmd)}")
subprocess.run(cmd, check=True)
except subprocess.CalledProcessError as e:
print(f"Error: {e}")
except FileNotFoundError:
print("Error: conda not found. Please install it first.")
if __name__ == "__main__":
run_command() 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
conda repoquery whoneeds <package> Terminal Output
Expected runtime feedback
\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
- Step 1
Run the command: `conda repoquery whoneeds packageA`
- 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.