in gym_recording/wrappers/trace_recording.py [0:0]
def __init__(self, env, directory=None):
"""
Create a TraceRecordingWrapper around env, writing into directory
"""
super(TraceRecordingWrapper, self).__init__(env)
self.recording = None
trace_record_closer.register(self)
self.recording = TraceRecording(None)
self.directory = self.recording.directory