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BF: don't poll() if script process has disappeared
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Also make sure that we unbind the whileRunning Idle() task by bringing
that call forwards slightly
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peircej committed Sep 24, 2020
1 parent 28d3135 commit cc56713
Showing 1 changed file with 6 additions and 4 deletions.
10 changes: 6 additions & 4 deletions psychopy/app/runner/
Original file line number Diff line number Diff line change
Expand Up @@ -117,8 +117,9 @@ def whileRunningFile(self, event=None):
newOutput = self._stdoutThread.getBuffer()
if newOutput:
returnVal = self.scriptProcess.poll()
if returnVal is not None:
if (self.scriptProcess is None
or self.scriptProcess.poll() is not None):
# no script or poll() sent a returncode (None means still running)
time.sleep(0.1) # let's not check too often
Expand All @@ -130,13 +131,14 @@ def onProcessEnded(self, event=None):
except wx._core.wxAssertionError:
self.scriptProcess = None
self.Bind(wx.EVT_IDLE, None)
# handle stdout
self._stdoutThread.exit = True
time.sleep(0.1) # give time for the buffers to finish writing?
buff = self._stdoutThread.getBuffer()

self.scriptProcess = None
self.Bind(wx.EVT_IDLE, None)
print("##### Experiment ended. #####\n")

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