Some smaller changes made to the core Python language are:
+* Directories and zip archives containing a :file:`__main__.py`
+ file can now be executed directly by passing their name to the
+ interpreter. The directory/zipfile is automatically inserted as the
+ first entry in sys.path. (Suggestion and initial patch by Andy Chu;
+ revised patch by Phillip J. Eby and Nick Coghlan; :issue:`1739468`.)
+
* The :func:`int` type gained a ``bit_length`` method that returns the
number of bits necessary to represent its argument in binary::