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FIX: Event loop timers should only run for the specified time

The implementation of start_event_loop would previously just countthe number of sleeps that occurred. But this could lead to longerevent loop times if flush_events() added time into the loop. Wewant the condition to be dependent on the end-time so we don'trun our loop longer than necessary.

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lib/matplotlib
- backend_bases.py

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`‎lib/matplotlib/backend_bases.py`

Lines changed: 3 additions & 5 deletions

Original file line number	Diff line number	Diff line change
`@@ -2320,13 +2320,11 @@ def start_event_loop(self, timeout=0):`
`2320`	`2320`	`"""`
`2321`	`2321`	`iftimeout<=0:`
`2322`	`2322`	`timeout=np.inf`
`2323`		`-timestep=0.01`
`2324`		`-counter=0`
	`2323`	`+t_end=time.time()+timeout`
`2325`	`2324`	`self._looping=True`
`2326`		`-whileself._loopingandcounter*timestep<timeout:`
	`2325`	`+whileself._loopingandtime.time()<t_end:`
`2327`	`2326`	`self.flush_events()`
`2328`		`-time.sleep(timestep)`
`2329`		`-counter+=1`
	`2327`	`+time.sleep(0.01)# Pause for 10ms`
`2330`	`2328`
`2331`	`2329`	`defstop_event_loop(self):`
`2332`	`2330`	`"""`

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Commitb98b898

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`‎lib/matplotlib/backend_bases.py`

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