Error loading tmLanguage and tmTheme files in Sublime Text 3

Question

With Sublime Text 2 I was able to style an output panel with

MyOutputView.set_syntax_file("/Path_to/my.tmLanguage")
MyOutputView.settings().set("color_scheme", "/Path_to/my.tmTheme")

in the current beta (3047) of Sublime Text 3 two windows pop up with the following messages (they also get printed to the console):

Error loading syntax file "/Path_to/my.tmLanguage": Unable to open /Path_to/my.tmLanguage

and:

Error loading colour scheme /Path_to/my.tmTheme: Unable to open /Path_to/my.tmTheme

Is this a bug that I should report, did the API change, did sublime move away from tm files?

Answer 1

From the ST3 API docs, it seems that most of the paths are relative, either to Packages or Installed Packages, depending on the class/method you're looking at. Since plugins should be designed for portability between 3 different platforms, and between standard and portable installs, relative paths are a good idea. Try setting your code to:

MyOutputView.set_syntax_file("Packages/MyLang/my.tmLanguage")
MyOutputView.settings().set("color_scheme", "Packages/MyColorScheme/my.tmTheme")

and you should be all set.