pixman_versions¶ tiatoolbox . utils . env_detection . pixman_versions pixman_versions()[source]¶ The version(s) of pixman that are installed. Some package managers (brew) may report multiple versions of pixman installed as part of a dependency tree. Returns: The versions of pixman that are installed as tuples of ints. Return type: list of tuple of int Raises: Exception – If pixman is not installed or the version could not be determined.