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-rw-r--r--contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/pyglet.py132
1 files changed, 66 insertions, 66 deletions
diff --git a/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/pyglet.py b/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/pyglet.py
index 49ec86d223..f34ed85845 100644
--- a/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/pyglet.py
+++ b/contrib/python/ipython/py3/IPython/terminal/pt_inputhooks/pyglet.py
@@ -1,66 +1,66 @@
-"""Enable pyglet to be used interactively with prompt_toolkit
-"""
-
-import sys
-import time
-from timeit import default_timer as clock
-import pyglet
-
-# On linux only, window.flip() has a bug that causes an AttributeError on
-# window close. For details, see:
-# http://groups.google.com/group/pyglet-users/browse_thread/thread/47c1aab9aa4a3d23/c22f9e819826799e?#c22f9e819826799e
-
-if sys.platform.startswith('linux'):
- def flip(window):
- try:
- window.flip()
- except AttributeError:
- pass
-else:
- def flip(window):
- window.flip()
-
-
-def inputhook(context):
- """Run the pyglet event loop by processing pending events only.
-
- This keeps processing pending events until stdin is ready. After
- processing all pending events, a call to time.sleep is inserted. This is
- needed, otherwise, CPU usage is at 100%. This sleep time should be tuned
- though for best performance.
- """
- # We need to protect against a user pressing Control-C when IPython is
- # idle and this is running. We trap KeyboardInterrupt and pass.
- try:
- t = clock()
- while not context.input_is_ready():
- pyglet.clock.tick()
- for window in pyglet.app.windows:
- window.switch_to()
- window.dispatch_events()
- window.dispatch_event('on_draw')
- flip(window)
-
- # We need to sleep at this point to keep the idle CPU load
- # low. However, if sleep to long, GUI response is poor. As
- # a compromise, we watch how often GUI events are being processed
- # and switch between a short and long sleep time. Here are some
- # stats useful in helping to tune this.
- # time CPU load
- # 0.001 13%
- # 0.005 3%
- # 0.01 1.5%
- # 0.05 0.5%
- used_time = clock() - t
- if used_time > 10.0:
- # print 'Sleep for 1 s' # dbg
- time.sleep(1.0)
- elif used_time > 0.1:
- # Few GUI events coming in, so we can sleep longer
- # print 'Sleep for 0.05 s' # dbg
- time.sleep(0.05)
- else:
- # Many GUI events coming in, so sleep only very little
- time.sleep(0.001)
- except KeyboardInterrupt:
- pass
+"""Enable pyglet to be used interactively with prompt_toolkit
+"""
+
+import sys
+import time
+from timeit import default_timer as clock
+import pyglet
+
+# On linux only, window.flip() has a bug that causes an AttributeError on
+# window close. For details, see:
+# http://groups.google.com/group/pyglet-users/browse_thread/thread/47c1aab9aa4a3d23/c22f9e819826799e?#c22f9e819826799e
+
+if sys.platform.startswith('linux'):
+ def flip(window):
+ try:
+ window.flip()
+ except AttributeError:
+ pass
+else:
+ def flip(window):
+ window.flip()
+
+
+def inputhook(context):
+ """Run the pyglet event loop by processing pending events only.
+
+ This keeps processing pending events until stdin is ready. After
+ processing all pending events, a call to time.sleep is inserted. This is
+ needed, otherwise, CPU usage is at 100%. This sleep time should be tuned
+ though for best performance.
+ """
+ # We need to protect against a user pressing Control-C when IPython is
+ # idle and this is running. We trap KeyboardInterrupt and pass.
+ try:
+ t = clock()
+ while not context.input_is_ready():
+ pyglet.clock.tick()
+ for window in pyglet.app.windows:
+ window.switch_to()
+ window.dispatch_events()
+ window.dispatch_event('on_draw')
+ flip(window)
+
+ # We need to sleep at this point to keep the idle CPU load
+ # low. However, if sleep to long, GUI response is poor. As
+ # a compromise, we watch how often GUI events are being processed
+ # and switch between a short and long sleep time. Here are some
+ # stats useful in helping to tune this.
+ # time CPU load
+ # 0.001 13%
+ # 0.005 3%
+ # 0.01 1.5%
+ # 0.05 0.5%
+ used_time = clock() - t
+ if used_time > 10.0:
+ # print 'Sleep for 1 s' # dbg
+ time.sleep(1.0)
+ elif used_time > 0.1:
+ # Few GUI events coming in, so we can sleep longer
+ # print 'Sleep for 0.05 s' # dbg
+ time.sleep(0.05)
+ else:
+ # Many GUI events coming in, so sleep only very little
+ time.sleep(0.001)
+ except KeyboardInterrupt:
+ pass