Commit3882397

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FIX: squash memory leak for redraws

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Lines changed: 7 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -169,7 +169,13 @@ def set_children(self, *children):`
`169`	`169`	`# parents are destroyed, references from the children won't`
`170`	`170`	`# keep them alive.`
`171`	`171`	`forchildinchildren:`
`172`		`-child._parents[id(self)]=weakref.ref(self)`
	`172`	`+# pass a wek reference. The second arg is a callback for`
	`173`	`+# when the weak ref is garbage collected, and will also`
	`174`	`+# remove the dictionary element, otherwise child._parents`
	`175`	`+# keeps growing for multiple draws.`
	`176`	`+ref=weakref.ref(self,lambdaref,sid=id(self),`
	`177`	`+target=child._parents:target.pop(sid))`
	`178`	`+child._parents[id(self)]=ref`
`173`	`179`
`174`	`180`	`ifDEBUG:`
`175`	`181`	`_set_children=set_children`

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