Impossible to start RTM client over a thread

[aaguilartablada]

Description

When trying to start a RTM connection over a thread a RuntimeError appears:
RuntimeError: set_wakeup_fd only works in main thread

What type of issue is this? (place an x in one of the [ ])

• bug
• enhancement (feature request)
• question
• documentation related
• testing related
• discussion

Requirements (place an x in each of the [ ])

• I've read and understood the Contributing guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've searched for any related issues and avoided creating a duplicate issue.

---

Bug Report

I will open a PullRequest with a solution

Reproducible in:

slackclient version: 2.5.0

python version: 3.6.8

OS version(s): RedHat 7.7

Steps to reproduce:

1. Create a Thread that connect a RTM client
2. Start the thread.
3. Exception occurs.

Expected result:

RTM run in a thread different to main thread

Actual result:

RuntimeError: set_wakeup_fd only works in main thread

[aoberoi]

Thanks for filing the issue. I was able to verify it, so I've added the bug label. As I noted in #606, we're currently revisiting the concurrency related issues in this project. I've added the area:concurrency label to bring this issue into that context.

[seratch]

@aaguilartablada Thank you very much for reporting this and making the PR #606. Let me close this issue now.

[seratch]

👋 slackclient 2.6.0rc1 is out. The pre-release version contains fixes for your issue described here.
https://pypi.org/project/slackclient/2.6.0rc1/

One week later from now, we'll be releasing version 2.6.0 to PyPI.

If you have a chance, could you try the release candidate version out and let us know your feedback? Thank you very much for being patient with this issue.