Print progress less frequently

ia-upload-stream

@@ -112,15 +112,20 @@ def file_progress_bar(f, mode, description, size = None):
 			wrappedFile = tqdm.utils.CallbackIOWrapper(t.update, f, mode)
 			yield wrappedFile
 	else:
-		# Simple progress bar that just prints a new line with elapsed time and size in MiB on every read or write
+		# Simple progress bar that just prints a new line with elapsed time and size in MiB on every read or write if it hasn't printed for at least a second
 		processedSize = 0
 		startTime = time.time()
+		lastPrintTime = 0
 		def _progress(inc):
-			nonlocal processedSize
+			nonlocal processedSize, lastPrintTime
 			processedSize += inc
+			now = time.time()
+			if now - lastPrintTime < 1:
+				return
 			proc = f'{processedSize / size * 100 :.0f}%, ' if size else ''
 			of = f' of {size / 1048576 :.2f}' if size else ''
-			print(f'\r{description}: {proc}{processedSize / 1048576 :.2f}{of} MiB, {time.time() - startTime :.1f} s', end = '', file = sys.stderr)
+			print(f'\r{description}: {proc}{processedSize / 1048576 :.2f}{of} MiB, {now - startTime :.1f} s', end = '', file = sys.stderr)
+			lastPrintTime = now
 		class Wrapper:
 			def __init__(self, wrapped):
 				object.__setattr__(self, '_wrapped', wrapped)