I have just moved to Python from R. In R you can use
#new section####
to have the \'new section\' as title in the
PyCharm also allows you to set anonymous and labeled bookmarks for navigating your source code. Their version of a jump-to menu is the Favorites window, which you can display using the View menu:
View --> Tool Windows --> Favorites
See Using code folding comments
For Python files:
#region Description ... #endregion