[Python] __code__ and decorator

http://stackoverflow.com/questions/1166118/how-to-strip-decorators-from-a-function-in-python

http://stackoverflow.com/a/1167248

[iOS] viewDidLoad viewDidAppear viewWillAppear

viewWillLoad/viewDidLoad - called when the view is constructed (via the first call to retrieve the view controller's UIView via it's view property - aka lazy loading)
viewWillAppear: - when the view is being prepared to appear either immediately (animated == NO) or view a transition (animated == YES)
viewDidAppear: - if the view appearance wasn't cancelled and the view controller's view fully appears
viewWillDisappear: - complements viewWillAppear:
viewDidDisappear: - complements viewDidAppear:

viewWillUnload/viewDidUnload - deprecated APIs when the view is unload due to memory constraints (don't worry about these anymore)

Source : http://stackoverflow.com/questions/22214843/ios-7-difference-between-viewdidload-and-viewdidappear

[iOS 8] Detected a case where constraints ambiguously suggest a height of zero for a tableview cell's content view. We're considering the collapse unintentional and using standard height instead

If you have this message :

<<

Warning once only: Detected a case where constraints ambiguously suggest a height of zero for a tableview cell's content view. We're considering the collapse unintentional and using standard height instead.

>>

then just write :

<<

- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath

{

    return 44;

}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

    return 44;

}

>>

Source : http://stackoverflow.com/questions/25822324/ios8-constraints-ambiguously-suggest-a-height-of-zero