Tres Seaver

I defined three content types, each deriving from `substanced.file.File` (see https://gist.github.com/tseaver/4857cac66e274c9b3117). When adding them using custom add views, the correct schemas are displayed. However, for both the `Bill` and `Contract`...

[`substanced.folder.views.multi_upload_submit`](https://github.com/Pylons/substanced/blob/ffe4d533953516ddb6ec45ab9e491b0287f40221/substanced/folder/views.py#L1475) hard-wires creating objects of `File` content type: it should be extensible to allow for custom types based on the context.

Content types which extend `File` w/ custom properties cannot currently get those properties processed cleanly by the [base add view](https://github.com/Pylons/substanced/blob/ffe4d533953516ddb6ec45ab9e491b0287f40221/substanced/file/views.py#L81). Its `add_success` should `pop()` the known/mandatory properties, and then, when...

Versioning of Components

2

In https://bugs.launchpad.net/zope.component/+bug/97916, @srichter reported: > I found the following comment from djay in the Wikis, which we should really consider: > > One thing I'd like to see is support...

In https://bugs.launchpad.net/zope.component/+bug/98412, @garyposter reported: > As noted in http://www.zope.org/Collectors/Zope3-dev/674, the interface adapter hook registration now done implicitly in `zope.component._api` should probably be made explicit. @ctheune followed up: > Feels like...

PEP489 support: multi-phase module initialization, heap based types

1

Continuation of PR #301, after moving the branch to this repository.

Set timeout for streaming RPCs.

12

### What version of gRPC and what language are you using? Python: `grpcio 1.24.0` ### What operating system (Linux, Windows,...) and version? Ubuntu 18.04 ### What runtime / compiler are...