feat(python): Add support for synchronous callbacks#407

Merged

garnaat merged 17 commits intoaws:masterfrom garnaat:add_sync_callback

Mar 28, 2019

+147-57

Commits on Mar 15, 2019

WIP: Initial checkpoint, basics of synchronous callbacks are working but only for simple, positional arguments. Also, one test for getting a property is now failing and needs to be fixed.
Mitch Garnaat
committed

Commits on Mar 17, 2019

A bit more progress but still not there.
Mitch Garnaat
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Commits on Mar 18, 2019

Still not fully working but a bit closer
Mitch Garnaat
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Commits on Mar 19, 2019

Merging from master
Mitch Garnaat
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Commits on Mar 21, 2019

Sync callback tests a now passing but still an issue with sync callbacks happening in the context of async callbacks.
Mitch Garnaat
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Commits on Mar 22, 2019

Fixing the situation where a Callback response is sent immediately after a Begin request.
Mitch Garnaat
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Commits on Mar 25, 2019

WIP commit
Mitch Garnaat
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Merging from origin/master
Mitch Garnaat
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Commits on Mar 27, 2019

All callback related tests now working.
Mitch Garnaat
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Merge branch 'master' into add_sync_callback
Mitch Garnaat
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Clearing the last of the xfails
Mitch Garnaat
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Commits on Mar 28, 2019

Fix issue that was causing loading of incorrect version of jsii package from PyPI
Mitch Garnaat
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Merge remote-tracking branch 'upstream/master' into add_sync_callback
Mitch Garnaat
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Get additional test added and running
Mitch Garnaat
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Remove some cruft left over from testing.
Mitch Garnaat
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Resolving some feedback issues
Mitch Garnaat
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More checking of enum passed in test
Mitch Garnaat
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