Support creating, getting and putting to native Go channels

[alanjds]

google#96 opened by @mattseh on 12 Jan 2017

Hi,

Very cool project.

I grepped the code, but couldn't find a mention of channels or goroutines.

Are they available, either directly or via the python stdlib?

Thanks

[alanjds]

Comment by trotterdylan
Thursday Jan 12, 2017 at 16:27 GMT

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Thanks for the interest in the project! The normal Python threading libraries are based on goroutines. So for example, this will implicitly start a goroutine:

import threading
def target():
  print 'from a goroutine!'
t = threading.Thread(target=target)
t.start()
t.join()

[alanjds]

Comment by trotterdylan
Thursday Jan 12, 2017 at 16:28 GMT

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Channels will be exposed implicitly as Queue objects. They will also be directly usable as native Go objects, but that work has not yet been done. Reopening this to capture that work.

[alanjds]

Comment by toadzhou
Friday Jan 13, 2017 at 05:20 GMT

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very good project! Sustained attention
# go build -o hello hello.go
/root/grumpy/build/src/grumpy/file.go:18:2: non-standard import "bufio" in standard package "grumpy"
/root/grumpy/build/src/grumpy/lib/threading/module.go:4:2: non-standard import "reflect" in standard package "grumpy/lib/threading"
import cycle not allowed
package main
imports grumpy
imports bufio
imports bytes
imports errors
imports runtime
imports runtime/internal/atomic
imports unsafe
imports runtime

[alanjds]

Comment by trotterdylan
Friday Jan 13, 2017 at 05:24 GMT

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@toadzhou I think that's a different issue. Can you file a different issue? It would be useful to see the output of go version.

[alanjds]

Comment by meadori
Thursday Jan 19, 2017 at 01:52 GMT

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I would like to take a stab at implementing Queues in terms of channels if no one is working on it yet.

[alanjds]

Comment by trotterdylan
Thursday Jan 19, 2017 at 02:12 GMT

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It's not being worked on to my knowledge.
On Wed, Jan 18, 2017 at 5:52 PM Meador Inge [email protected]
wrote:

I would like to take a stab at implementing Queues in terms of channels
if no one is working on it yet.

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[alanjds]

Comment by choleraehyq
Thursday Jan 19, 2017 at 07:49 GMT

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I don't think implementing Queue based on channal is a good idea. Even in Go, we often reimplement a queue without channals rather than using channals.

How do you think about refactoring threading.Event using channal?