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python-trio/exceptiongroup
Proposal: native exception handling API

As an alternative or addition to #5, it is possible to use Python s try-except natively: try: async with something: something.raise_concurrent() except MultiError[A]: print( Handled concurrent ...
  • maxfischer2781
  • 2
  • Opened 
    on Jun 19, 2020
  • #20

python-trio/exceptiongroup
handle SystemExit exceptions in excepthook

The old MultiError code didn t have to worry about this, because of unwrapping, but we do. If a program terminates with an ExceptionGroup that consists of only SystemExit exceptions, then it should terminate ...
  • njsmith
  • 1
  • Opened 
    on Jan 29, 2019
  • #15

python-trio/exceptiongroup
Handle __suppress_context__ in ExceptionGroup.__copy__

I just looked through all the dunder attributes on an exception, comparing them to ExceptionGroup.__copy__, and realized that we re still missing one: __suppress_context__, which is a bool used to record ...
  • njsmith
  • 1
  • Opened 
    on Jan 28, 2019
  • #14

python-trio/exceptiongroup
Fix CI check for code formatting

As noted here, we have code in ci/travis.sh to check for having run black, but it s broken. I think we want a PR that: 1. makes it if ! black ..., to fix the check. 2. runs black over the code with ...
  • njsmith
  • Opened 
    on Jan 24, 2019
  • #11

python-trio/exceptiongroup
Should we use black formatter for the code here?

Inpired by Switch to black, Maybe it s better to use black for the project now?
  • WindSoilder
  • 2
  • Opened 
    on Jan 21, 2019
  • #9

python-trio/exceptiongroup
Decide what ExceptionGroup.args should be

Exceptions in general have an unusual convention where you can pass any positional arguments that you want to the constructor, and they all get stashed as .args, and str(exc) returns str(exc.args[0]) if ...
  • njsmith
  • 2
  • Opened 
    on Jan 19, 2019
  • #8

python-trio/exceptiongroup
Decide whether split(..., None) should return (None, None)

That s what it does right now. Is there any good reason for this? MultiError.filter passed through None, but MultiError.filter had a more general system where handlers took exceptions as arguments, and ...
  • njsmith
  • 4
  • Opened 
    on Jan 19, 2019
  • #7

python-trio/exceptiongroup
API for accessing leaf exception attributes

Sometimes after people catch an exception, they need to access attributes on it (e.g., OSError.errno). But if you do with catch(OSError, handler): ..., then handler has to be prepared to get an ExceptionGroup, ...
  • njsmith
  • Opened 
    on Jan 19, 2019
  • #6

python-trio/exceptiongroup
Consider decorator-based exception catch API

See https://github.com/python-trio/trio/issues/611#issuecomment-453269216 This is probably nicer than with catch? @1st1 hates with catch so maybe he ll like this better :-)
  • njsmith
  • 17
  • Opened 
    on Jan 19, 2019
  • #5

python-trio/exceptiongroup
Get to 100% coverage

  • njsmith
  • Opened 
    on Jan 19, 2019
  • #4
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