PyCharm 2020.3 Help

Platform Properties Reference'

The idea.properties file can include both settings that are specific for the IntelliJ platform and any other relevant properties. To configure platform properties, on the Help menu, click Edit Custom Properties.

You can use macros with any property name to insert its value, for example, use ${user.home} to specify paths relative to the user's home directory.

Property Default value Description
idea.chooser.lookup.for.project.dirs true Defines whether PyCharm should look inside directories for valid projects to mark such directories with the corresponding icon. If you disable this property, such lookups will not be performed outside of the user's home directory.
idea.cycle.buffer.size 1024 Sets the maximum size of the console cyclic buffer (in kylobytes). If the console output size exceeds this value, oldest lines are deleted. To disable the cyclic buffer, set idea.cycle.buffer.size=disabled.
idea.dynamic.classpath false Defines whether long classpath should be written to a file and read from there instead of passing it on the command line. By default, this is disabled and if the command exceeds the limit of characters allowed by the shell, it fails.
idea.max.content.load.filesize 20000 Sets the maximum size of files (in kylobytes) that PyCharm is able to open and process.
idea.max.intellisense.filesize 2500 Sets the maximum size of files (in kilobytes) for which PyCharm provides code assistance. Code assistance for large files can decrease editor performance and increase memory consumption.
idea.max.vcs.loaded.size.kb 20480 Sets the maximum size (in kilobytes) that PyCharm loads for showing past file contents when comparing changes.
idea.no.launcher false Defines whether a special launcher should be used when running processes from PyCharm. The launcher is enabled by default and provides "soft exit" and "thread dump" features. To disable it, set idea.no.launcher=true
idea.popup.weight heavy If your window manager is configured to change focus with the mouse and auto-raise windows, set this property to medium, which will prevent problems with popup menus on some configurations.
idea.ProcessCanceledException enabled Defines whether PyCharm should throw ProcessCanceledException when user activity is detected. Disable this only when developing plugins and you need to debug the IDE itself (activities related to PSI, which are performed in the background error analysis thread), because it can cause significant slowdowns and lockups.
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${idea.home} macro

Use ${idea.home} macro to specify location relative to IDE installation home.

Also use ${xxx} where xxx is any java property (including defined in the previous lines of this file) to refer to its value.

Path to the IDE config folder Uncomment this option if you want to customize path to IDE config folder.
idea.config.path=${user.home}/.PyCharm/config
Path to IDE system folder Uncomment this option if you want to customize path to IDE system folder.
idea.system.path=${user.home}/.PyCharm/system
Path to user installed plugins Uncomment this option if you want to customize path to user installed plugins folder.
idea.plugins.path=${user.home}/.PyCharm/config/plugins
Path to IDE logs folder Uncomment this option if you want to customize path to IDE logs folder.
idea.log.path=${user.home}/.PyCharm/system/log
Maximum file size

Maximum file size (kilobytes) IDE should provide code assistance for. The larger file is, the slower its editor works and later overall system memory requirements are, if code assistance is enabled. https://youtrack.jetbrains.com/issue/IDEA-72543

Remove this property or set to a very large number, if you need code assistance for any files to be available, regardless of their size.

idea.max.intellisense.filesize=2500
Large file size limit The maximum file size that IDE accepts for loading. For example, when you have a file that exceeds the specified limit for "Find in Files" action, IDE will ignore such file. You can override the default maximum size by manually specifying the size limit.
idea.max.content.load.filesize=2000
Console cyclic buffer This option controls console cyclic buffer: keeps the console output size not higher than the specified buffer size (Kb). Older lines are deleted. In order to disable cycle buffer, use idea.cycle.buffer.size=disabled
idea.cycle.buffer.size=1024
Launcher Configure if a special launcher should be used when running processes from within IDE. Using Launcher enables "soft exit" and "thread dump" features.
idea.no.launcher=false
Classpath To avoid too long classpath
idea.dynamic.classpath=false
ProcessCanceledException

Uncomment this property to prevent IDE from throwing ProcessCanceledException when user activity detected. This option is only useful for plugin developers, while debugging PSI related activities performed in background error analysis thread.

DO NOT UNCOMMENT THIS UNLESS YOU'RE DEBUGGING THE IDE ITSELF. Significant slowdowns and lockups will happen otherwise.

idea.ProcessCanceledException=disabled
Popup window weight There are two possible values of idea.popup.weight property: "heavy" and "medium". If you have WM configured as "Focus follows mouse with Auto Raise" then you have to set this property to "medium". It prevents problems with the popup menus on some configurations.
idea.popup.weight=heavy
System anti-aliasing Use default anti-aliasing in system, that is override value of "Settings|Editor|Appearance|Use anti-aliased font" option. May be useful when using Windows Remote Desktop Connection for instance.
idea.use.default.antialiasing.in.editor=false
Repaint Disabling this property may lead to visual glitches like blinking and fail to repaint on certain display adapter cards.
sun.java2d.noddraw=true
Editor performance Removing this property may lead to editor performance degradation under Windows.
sun.java2d.d3d=false
Slow scrolling Workaround for slow scrolling in JDK6.
swing.bufferPerWindow=false
Editor performance under X Window Removing this property may lead to editor performance degradation under X Window.
sun.java2d.pmoffscreen=false
Avoid long hangs Workaround to avoid long hangs while accessing clipboard under macOS.
ide.mac.useNativeClipboard=True
Copy library jars IDE copies library jars to prevent their locking. If copying is not desirable, specify "true"
idea.jars.nocopy=false
Start the JVM in debug mode The VM option value to be used to start the JVM in debug mode. Some JREs define it in a different way (-XXdebug in Oracle VM)
idea.xdebug.key=-Xdebug
Switch into JMX 1.0 compatibility mode. Uncomment this option to be able to run PyCharm using J2SDK 1.5+ while working with application servers (like WebLogic) running 1.4.
jmx.serial.form=1.0
Fatal errors notifications Change to 'enabled' if you want to receive instant visual notifications about fatal errors that happen to an IDE or plugins installed.
idea.fatal.error.notification=disabled
Last modified: 14 December 2020