UV run

Create: Run | Edit Configurations | | uv run

The tree view of run/debug configurations has a toolbar that helps you manage configurations available in your project as well as adjust default configurations templates.

Item	Shortcut	Description
	`Alt+Insert`	Create a run/debug configuration.
	`Alt+Delete`	Delete the selected run/debug configuration. Note that you cannot delete default configurations.
	`Ctrl+D`	Create a copy of the selected run/debug configuration. Note that you create copies of default configurations.
		The button is displayed only when you select a temporary configuration. Click this button to save a temporary configuration as permanent.
		Move into new folder / Create new folder. You can group run/debug configurations by placing them into folders. To create a folder, select the configurations within a category, click , and specify the folder name. If only a category is in focus, an empty folder is created. Then, to move a configuration into a folder, between the folders or out of a folder, use drag or and buttons. To remove grouping, select a folder and click .
		Click this button to sort configurations in the alphabetical order.

Common options

Item	Description
Name	Specify a name for the run configuration to quickly identify it among others when editing or running.
Allow multiple instances	Allow running multiple instances of this run configuration in parallel. By default, it is disabled, and when you start this configuration while another instance is still running, PyCharm suggests stopping the running instance and starting another one. This is helpful when a run configuration consumes a lot of resources and there is no good reason to run multiple instances.
Store as project file	Save the file with the run configuration settings to share it with other team members. The default location is .idea/runConfigurations. However, if you do not want to share the .idea directory, you can save the configuration to any other directory within the project. By default, it is disabled, and PyCharm stores run configuration settings in .idea/workspace.xml.

Item

Description

Name

Specify a name for the run configuration to quickly identify it among others when editing or running.

Allow multiple instances

Allow running multiple instances of this run configuration in parallel.

By default, it is disabled, and when you start this configuration while another instance is still running, PyCharm suggests stopping the running instance and starting another one. This is helpful when a run configuration consumes a lot of resources and there is no good reason to run multiple instances.

Store as project file

Save the file with the run configuration settings to share it with other team members. The default location is .idea/runConfigurations. However, if you do not want to share the .idea directory, you can save the configuration to any other directory within the project.

By default, it is disabled, and PyCharm stores run configuration settings in .idea/workspace.xml.

UV run-specific configuration options

Item	Description
Run: Script/Module	Click the list to select a type of target to run. Then, in the corresponding field, specify the path to the Python script or the module name to be executed. You can use path variables in this field.
Arguments	In this field, specify command-line arguments to be passed to the Python script. When specifying the script parameters, follow these rules: Use spaces to separate individual script parameters. Script parameters containing spaces should be delimited with double quotes, for example, `some" "param` or `"some param"`. If script parameter includes double quotes, escape the double quotes with backslashes, for example: -s"main.snap_source_dirs=[\"pcomponents/src/main/python\"]" -s"http.cc_port=8189" -s"backdoor.port=9189" -s"main.metadata={\"location\": \"B\", \"language\": \"python\"}" In this field you can add a macro to pass various project- or context-specific values when running a run/debug configuration. Click + and select one of the available macros from the list. See Adding macros to run/debug configuration for more details.
Environment variables	This field shows the list of environment variables. If the list contains several variables, they are delimited with semicolons. By default, the field contains the variable `PYTHONUNBUFFERED` set to 1. To fill in the list, click the browse button or press `Shift+Enter` and specify the required set of environment variables in the Environment Variables dialog. To create a new variable, click , and type the required name and value. You might want to populate the list with the variables stored as a series of records in a text file, for example: Variable1 = Value1 Variable2 = Value2 Copy the list of variables from the text file and click Paste () in the Environmental Variables dialog. The variables will be added to the table. Click Ok to complete the task. At any time, you can select all variables in the Environment Variables dialog, click Copy , and paste them into a text file.
Warn about package synchronization before running	Clear this checkbox if you do not want to receive a warning about potential package dependency synchronization before running the script.
Python Interpreter	Select one of the uv interpreters from the list.
uv arguments	In this field, specify the arguments to be passed to `uv`. If necessary, click , and type the string in the editor.
Debug just my code	When this option is enabled, the debugger focuses only on user-written code and skips stepping into external libraries.

Logs

The following options are related to logging the execution of this configuration. For more information, refer to Setting log options.

Item	Description
Specify logs to be shown in the console	Specify which log files to display while running the application. Click to add a new log. In the Edit Log Files Aliases dialog, configure the following: Alias: The name of the tab where the log will be displayed. Log File Location: Specify the path to the log file or an Ant pattern. If several files of a rolling log match the pattern, PyCharm will display the most recent one. Show all files coverable by pattern: Show all logs that match the pattern. For logs in the table, you can configure the following options: Is Active: Display the specified log file. Skip Content: Do not display old log messages from previous runs.
Save console output to file	Save the console output to the specified location. Type the path manually or click the browse button and point to the desired location in the dialog that opens.
Show console when a message is printed to stdout	Activate the console when the application writes to the standard output stream.
Show console when a message is printed to stderr	Activate the console when the application writes to the standard error stream.

Before launch

In this area, you can specify tasks to be performed before starting the selected run/debug configuration. The tasks are performed in the order they appear in the list.

Item	Shortcut	Description
	`Alt+Insert`	Click this icon to add one of the following available tasks: Launch Web Browser: select this option to have a browser started. In the dialog that opens, select the type of the browser and provide the start URL. Also, specify if you want the browser to be launched with the JavaScript debugger. Run External tool: select to run an external application. In the dialog that opens, select one or multiple applications you want to run. If it is not defined in PyCharm yet, add its definition. For more information, refer to External tools and External Tools. Run Another Configuration: select to execute another run/debug configuration and wait until it finishes before starting the current configuration. If you want to run several configurations in parallel, use a compound run/debug configuration. Run File Watchers: select this option to have PyCharm apply all the currently active File Watchers. Run Remote External Tool: adds a remote SSH external tool. Run Grunt task: select this option to run a Grunt task. In the Grunt task dialog that opens, specify the Gruntfile.js where the required task is defined, select the task to execute, and specify the arguments to pass to the Grunt tool. Specify the location of the Node.js runtime, the parameters to pass to it, and the path to the grunt-cli package. Run gulp task: select this option to run a Gulp task. In the Gulp task dialog that opens, specify the Gulpfile.js where the required task is defined, select the task to execute, and specify the arguments to pass to the Gulp tool. Specify the location of the Node.js runtime, the parameters to pass to it, and the path to the gulp package. Run npm script: select this option to execute an npm script. In the NPM Script dialog that opens, specify the npm run/debug configuration settings. Compile TypeScript: select to run the built-in TypeScript compiler and thus make sure that all the changes you made to your TypeScript code are reflected in the generated JavaScript files. In the TypeScript Compile Settings dialog that opens, select or clear the Check errors checkbox to configure the behaviour of the compiler in case any errors are detected: If the Check errors checkbox is selected, the compiler will show all the errors and the run configuration will not start. If the Check errors checkbox is cleared, the compiler will show all the detected errors but the run configuration still will be launched. Disconnect Data Source: select this option if you want to disrupt the connection to a data source before the run/debug configuration is run.
	`Alt+Delete`	Click this icon to remove the selected task from the list.
	`Enter`	Click this icon to edit the selected task. Make the necessary changes in the dialog that opens.
	`Alt+Up` `Alt+Down`	Click these icons to move the selected task one line up or down in the list. The tasks are performed in the order that they appear in the list.
Show this page		Select this checkbox to show the run/debug configuration settings prior to actually starting the run/debug configuration.
Activate tool window		By default this checkbox is selected and the Run or the Debug tool window opens when you start the run/debug configuration. Otherwise, if the checkbox is cleared, the tool window is hidden. However, when the configuration is running, you can open the corresponding tool window for it yourself by pressing `Alt+4` or `Alt+5`.
Focus tool window		Select this checkbox to automatically move focus to the Run or the Debug tool window when you start the run/debug configuration.

02 March 2026

UV run

Toolbar

Common options

UV run-specific configuration options

Logs

Before launch