Update Python workflow example to be more in line with actual Python client implementation

[soxofaan]

The guidelines should probably not be tied to much to current implementations, but I think the difference in the python example is bit to large to keep it that way

[m-mohr]

I manually made some changes in the commit listed above, but in general that's a guideline and thus should reflect what is proposed, not what's the actual state. If there's a divergence between guideline and the implementation, it should be checked for what reason it has been changed and whether it should just be changed in the client or migrated to the guideline in general for all languages (e.g. why it's send_job instead of create_job).