The search commandCtrl+Shift+F7 makes it possible to visualize usages of a symbol in the current file.
All found usages of a symbol in the current file are highlighted and color-coded, as defined in the Color Scheme settings page, to represent read or write access to the symbol. In addition to the highlights of occurrences in a text, the stripes of the same colors appear in the marker bar, accompanied with tooltips.
The behavior of usage highlighting is configurable: you can make PyCharm show usages of a symbol at caret automatically, or invoke it with a command.
Activating automatic highlighting of usages
In the Settings/Preferences dialog Ctrl+Alt+S, go to .
On the Code Editing page, select the Highlight usages of element at caret checkbox in the Highlight on Caret Movement area.
Highlighting usages of a symbol in the current file
Place the caret at the selected symbol in the editor. If automatic usages highlighting is enabled, see all its occurrences in the current file highlighted. Otherwise, proceed to the next step.
From the main menu, choose, or press Ctrl+Shift+F7.
To highlight overridden methods:
In a class that implements one or more interfaces, place the caret at the
implementskeyword in the class declaration.
From the main menu, choose, or press Ctrl+Shift+F7. A list of implemented interfaces shows up:
Select the interface, whose methods you want to highlight, and press Enter.
Navigating among usages
To remove highlighting of usages, press Escape.