Typo in a error message in gym/wrappers/monitoring/video_recorder.py (o…

…penai#952)
xiaoToby · Feb 26, 2019 · 53e4b2c · 53e4b2c
1 parent ce9b4e4
commit 53e4b2c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/gym/wrappers/monitoring/video_recorder.py b/gym/wrappers/monitoring/video_recorder.py
@@ -241,7 +241,7 @@ def __init__(self, output_path, frame_shape, frames_per_sec):
         # Frame shape should be lines-first, so w and h are swapped
         h, w, pixfmt = frame_shape
         if pixfmt != 3 and pixfmt != 4:
-            raise error.InvalidFrame("Your frame has shape {}, but we require (w,h,3) or (w,h,4), i.e. RGB values for a w-by-h image, with an optional alpha channl.".format(frame_shape))
+            raise error.InvalidFrame("Your frame has shape {}, but we require (w,h,3) or (w,h,4), i.e., RGB values for a w-by-h image, with an optional alpha channel.".format(frame_shape))
         self.wh = (w,h)
         self.includes_alpha = (pixfmt == 4)
         self.frame_shape = frame_shape