Method __new__

lib/matplotlib/dviread.py:1253–1256

(cls)

class _LuatexKpsewhich:
    @cache  # A singleton.
    def __new__(cls):
        self = object.__new__(cls)
        self._proc = self._new_proc()
        return self

    def _new_proc(self):
        return subprocess.Popen(