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Author vstinner
Recipients Julian, vstinner
Date 2013-03-19.23:54:50
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Marked as misclassified Yes
Message-id <>
The following example returns immediatly, whereas I expected it to block. So I consider that ungetch(-1) should fail, but I may be wrong.
import curses

def test_screen(screen):
    key = screen.getch()



key is -1, I don't get an OverflowError. The Python implementation of ungetch() casts the Python int to a C "chtype" type, and check for underflow or overflow. On my Fedora 18, chtype is defined in ncurses.h as "unsigned long". My code checking for overflow doesn't detect the overflow for this specific case.

What is your platform (name and version)?

We should always have the same behaviour on any platform (always fail with an error, or always accept -1), so anyway there is a bug.
Date User Action Args
2013-03-19 23:54:50vstinnersetrecipients: + vstinner, Julian
2013-03-19 23:54:50vstinnersetmessageid: <>
2013-03-19 23:54:50vstinnerlinkissue16293 messages
2013-03-19 23:54:50vstinnercreate