Download single_pass_weld.wx directly in the tutorials

[vhirtham]

Changes

I added a hidden cell at the top in each of the new tutorials. This cell calls the function to download the needed single_pass_weld.wx file. The background is that you can't run those tutorials locally without the file but it is only downloaded when in another directory if you actually build the docs. I also edit a flag to the download function to suppress text outputs.

Checks

• updated CHANGELOG.rst
• updated tests
• updated doc/
• update example/tutorial notebooks
• update manifest file

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Codecov Report

Merging #705 (979b9b6) into master (8a2ccec) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #705   +/-   ##
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  Coverage   96.05%   96.05%           
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  Files          92       92           
  Lines        6393     6393           
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  Hits         6141     6141           
  Misses        252      252           

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Unit Test Results

       1 files  ±0         1 suites  ±0   1m 31s ⏱️ -28s
2 156 tests ±0  2 156 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 979b9b6. ± Comparison against base commit 8a2ccec.

♻️ This comment has been updated with latest results.

[marscher]

I think we could also remove the download inside the docs (conf.py), right?

[CagtayFabry]

I think we could also remove the download inside the docs (conf.py), right?

wasn't the idea to download the file once for the tests so that it is available?

[CagtayFabry]

I think it is cleaner to use the "nbsphinx": "hidden" cell metadata so that the download code doesn't show up in the html documentation

[marscher]

If the notebooks download the file, we do not need to do it explicitly (even for the tests), right? That should be the case as all notebook cells will be executed by the tests in sequential order. The only thing that could happen then is a race condition, when two notebooks will start to download the file. This should be avoided as it leads to unpredictable test failures.
The current situation is, that we download during Sphinx building and only the first tutorial will download explicitly.
The download code has been duplicated to do so. I'd prefer a solution without duplication and having the notebooks download it seems to be the one.

[CagtayFabry]

I just wasn't sure about the parallel execution of the notebooks via pytest but that's ok for me too if it works

[marscher]

not downloading in Sphinx works. The RTD error is unrelated.
intersphinx inventory 'https://k3d-jupyter.org/objects.inv' not fetchable due to <class 'requests.exceptions.ConnectionError'>: HTTPSConnectionPool(host='k3d-jupyter.org', port=443): Max retries exceeded with url: /objects.inv (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fe6e6f7c760>: Failed to establish a new connection: [Errno 110] Connection timed out'))