Log Message:
py-ipython: updated to 7.18.1

IPython 7.18 is a minor release that mostly contains bugfixes.

 - ``CRLF`` is now handled by magics my default; solving some issues due to copy
   pasting on windows.

 - Requiring pexpect ``>=4.3`` as we are Python 3.7+ only and earlier version of
   pexpect will be incompatible.

 - Minimum jedi version is now 0.16.