StackOverflow2013

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plurals

PO
primarykey
Id
5689725
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-04-16T21:26:28.260
FavoriteCount
0
LastActivityDate
2011-04-16T21:35:30.520
LastEditDate
2011-04-16T21:35:30.520
LastEditorUserId
711085
OwnerUserId
711085
ParentId
5689308
PostTypeId
2
Score
0
ViewCount
0
LastEditorDisplayName
text
Body
It seems what you actually want is a callback: <pre><code>class txtfield(pygame.sprite.Sprite): def __init__(self, ***callback***, name, x, y): ***self.callback=callback*** self.value="" def update(self, key): #I removed image-changing and the code which changes the string self.value #key is a character from the last pressed button #(self.value+=key) if key=="return": ***self.callback(self.value)*** # I want this to be like 'a=self.value'. #-> assuming self.name is 'Peter', 'a' should change to 'Peter' #if the user hits enter ***def myCallback(text): print(text)*** txt=txtfield(***myCallback***, "popo", 20, 20) </code></pre> You can even set variables this way: <pre><code>class MyController(object): def __init__(self): self.A = '' def makeCallback(self): """ Makes a callback which modifies self.A """ def myCallback(text): self.A = text return myCallback controller = MyController() txt = txtfield(controller.makeCallback(), "popo", 20, 20) assert controller.A=='popo' #--> True! </code></pre> The reason you couldn't "set a variable" in your original version was because you told the function "set 'popo' to 'popo'"; the function setting the thing needed to know the name of the object. In the example I gave above, you are saying "set self.A to 'popo'". Here's an example without a class: <pre><code>A = '' def setA(text): A = text txt = txtfield(setA, "popo", 20, 20) assert A=='popo' </code></pre> Here is an example that uses dictionaries (you can also use lists) to avoid having to give a card-coded name: <pre><code>lookupTable = {} def setA(text): lookupTable['A'] = text txt = txtfield(setA, "popo", 20, 20) assert lookupTable['A']=='popo' </code></pre>
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1. This table or related slice is empty.
PostParentId
1. POChanging a variable inside a class
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USninjagecko
UserOwnerUserId
1. USninjagecko
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1. This table or related slice is empty.
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