The option --server.fileWatcherType does not work from the command line

Summary

The option --server.fileWatcherType does not work from the command line but works when specified in the toml config file.

Steps to reproduce

What are the steps we should take to reproduce the bug:

Run streamlit as follows: streamlit run hello.py --server.fileWatcherType=none --logger.level debug Looking at the log, you will notice a line like: Watcher created for /path/to/hello.py

However, if I set this variable in the toml file to none, it works as expected.

Expected behavior:

A watcher should not be created when set to none and thus the above line should not be present in the log.

Actual behavior:

The fileWatcherType still defaults to ‘auto’ and an EventBasedFileWatcher is created.

Is this a regression?

Not sure

Debug info

• Streamlit version: (get it with 0.65, 0.69)
• Python version: (get it with 3.6)
• Using Pip
• OS version: tested on both MacOS 10.15.7 (Python 3.6.4) and Ubuntu 18.04 (Python 3.6.9)
• Browser version: N/A

[vvssttkk]

so, this commands echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p helped

[vvssttkk]

after some time i get a similar error too. version 0.83.0

 raise OSError(errno.ENOSPC, "inotify watch limit reached")  
OSError: [Errno 28] inotify watch limit reached

fs.inotify.max_user_instances doesn’t help.