Options in the pyglet.options dictionary can have defaults set through the operating system’s environment variable. The following table shows which environment variable is used for each option:
Environment variable pyglet.options key Type Default value PYGLET_AUDIO audio List of strings directsound,opeanl,alsa,silent PYGLET_DEBUG_GL debug_gl Boolean 1 [1]
[1] | Defaults to 1 unless Python is run with -O or from a frozen executable. |