How to disable syntax warning for the latest sublime text 3?

I have updated the latest Sublime Text 3 build (3124), but when I save the changes of python file, the warning will shown as below:

I installed the Python Flake8 Lint package, but the warning is never shown for old sublime version.

How to disable it?

Solution

Disable the show_panel_on_save setting by setting it to "never".

Menu > Preferences > Package Settings > SublimeLinter > Settings

Or use the Command Palette: Ctrl+Shift+P and select: Preferences: SublimeLinter Settings

{
    // Show the output panel on save if there are problems.
    // - window: check if the window has problems.
    // - view: only check the current file.
    // - never: disable this feature.
    "show_panel_on_save": "never"
}

Older versions of SublimeLinter

Disable the show_errors_on_save setting.

Menu > Preferences > Package Settings > SublimeLinter > Settings

{
    // This setting determines if a Quick Panel with all errors is   
    // displayed when a file is saved. The default value is false.
    "show_errors_on_save": false
}

Or use the Command Palette to disable it:

Open the Command Palette: Ctrl+Shift+P
Select: SublimeLinter: Don't Show Errors on Save
Done!