Exit MAPDL at the end of each example

[mgalloue]

All examples starts launching MAPDL using launch_mapdl() method and should stop it properly at the end using mapdl.exit() method.
On our side, when we are running this examples inside jupyter lab, mapdl instances are created and never deleted.

[codecov]

Codecov Report

Merging #919 (3ea00ae) into main (5954e3f) will increase coverage by 0.29%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #919      +/-   ##
==========================================
+ Coverage   72.49%   72.78%   +0.29%     
==========================================
  Files          39       39              
  Lines        5682     5681       -1     
==========================================
+ Hits         4119     4135      +16     
+ Misses       1563     1546      -17     

[akaszynski]

While I'm not fundamentally opposed to this, you may consider using our testing configuration that overrides launch_mapdl to simply use an existing instance. See:
https://mapdldocs.pyansys.com/contributing.html#testing

export PYMAPDL_START_INSTANCE=False
export PYMAPDL_PORT=<MAPDL Port> (default 50052)
export PYMAPDL_IP=<MAPDL IP> (default 127.0.0.1)

This way you can run through all examples using one instance of mapdl, rather than starting and stopping MAPDL for each test.

Let me know if this testing configuration works.

---

If you're still in favor of us including this, please include new lines at the end of each file. See: https://www.flake8rules.com/rules/W391.html

[cdan6]

@akaszynski One of the goals of our testing sessions is precisely to use separate mapdl pods for users. So using a single instance for all notebooks is definitely not appropriate.
Moreover, since each file calls launch_mapdl(), it must call mapdl.exit() to be consistent.
If you do not want to kill mapdl when running a test, then I believe you'll have to hack mapdl.exit() the same way you hacked launch_mapdl().

[akaszynski]

Sounds fair @cdan6, and this is better than patching all the files when copying the examples.

Thanks for adding this and fixing the line endings!

local doc builds fail

[akaszynski]

Local docbuilds fail. I'm looking into this.

[cdan6]

Thanks for taking care of this, @akaszynski.