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Environment settings

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,openal,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.