Source

pypy / pypy / doc / config / objspace.std.withrangelist.txt

Enable "range list" objects. They are an additional implementation of the Python
``list`` type, indistinguishable for the normal user. Whenever the ``range``
builtin is called, an range list is returned. As long as this list is not
mutated (and for example only iterated over), it uses only enough memory to
store the start, stop and step of the range. This makes using ``range`` as
efficient as ``xrange``, as long as the result is only used in a ``for``-loop.

See the section in `Standard Interpreter Optimizations`_ for more details.

.. _`Standard Interpreter Optimizations`: ../interpreter-optimizations.html#range-lists
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.