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Conda / Set Environment Variable

Set Environment Variable

Sets an environment variable for the specified conda environment.

Terminal

conda env config vars set <my_var>=<value>

conda env config vars set <my_var>=<value>

#!/bin/bash

# Set Environment Variable
conda env config vars set {{my_var}}={{value}}

import subprocess

# Set Environment Variable
# Make sure to replace <placeholders> with actual values
def run_command():
    cmd = [
        "conda",
        "env",
        "config",
        "vars",
        "set",
        "<my_var>=<value>"
    ]
    
    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

To configure essential runtime environment variables after environment creation.

Pro Tip

Use `--name` to ensure you are setting the variable in the correct environment, especially in multi-environment setups.

Command Builder

Tune the command before you copy it

Back to syntax

Generated Command

conda env config vars set <my_var>=<value>

Terminal Output

Expected runtime feedback

Simulated preview

Output

\$ conda env config vars set my_var=value
Setting environment variable 'my_var' = 'value' for environment 'base'.

\$ conda env config vars list
# Current env vars for 'base':
my_var: value

Anatomy of Output

Understanding the result

Setting environment variable 'MY_VAR' to '1' for environment 'my_env'. Set Variable Output

Confirms the variable has been set correctly for the specified environment.

Power User Variants

Optimized versions

conda env config vars set my_var=2

Sets a different value to the variable.

conda env config vars set MY_OTHER_VAR=3 --name another_env

Sets a variable in a different environment.

Troubleshooting

Common pitfalls

KeyError: Variable 'MY_VAR' already exists.

Solution: Use 'conda env config vars unset MY_VAR' to remove the existing variable.

EnvironmentNotFound: The environment 'fake_env' does not exist.

Solution: Check if the environment name is entered correctly.

ValueError: Must provide a valid variable format: 'VAR=VALUE'.

Solution: Ensure you are using the correct syntax.

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.
<my_var>: my var; The value supplied for my var.
<value>: value; The value supplied for value.

How To Run

Execution path

Step 1
Run the command: `conda env config vars set my_var=value`
Step 2
Verify with: `conda env config vars list`

Alternative Approaches

Comparable commands in other tools

Alternative package management tools for the same job.

Meteor / List Meteor Packages meteor list Bun / Install Add Single Package bun add <package> Bun / Install Multiple Packages bun add <package1 package2 ...> Bun / Install From Git Repository bun add <git_url> Bun / Install Specific Version bun add <package>@<version>