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Nov 23, 2012 at 16:21 comment added Songo @MartijnPieters Thanks a lot for the links. Just what I was looking for.
Nov 23, 2012 at 12:42 comment added Martijn Pieters @Songo: The Jython implementation in Java, the IronPython implementation in C#.
Nov 23, 2012 at 11:59 comment added Martijn Pieters @Songo: Other than that string.lower(s) is a python function that delegates that to return s.lower(), that is correct. The CPython 3.3 string case operations are implemented in C.
Nov 20, 2012 at 19:16 comment added Russell Borogove Some of Python's standard library is written in Python for portability and convenience, but otherwise I believe that's correct.
Nov 20, 2012 at 17:37 comment added Songo @YannisRizos hmmm So if I have a built-in function in Python for example string.lower(s) which takes a String and returns another one with upper case letters converted to lower case, its implementation (i.e. the code that will operate on the string to produce the output) is written in C for CPython, Java for Jython and C# for IronPython, right? Is that similar to what Google did to Android where the apps are written in Java, but the libraries used to run them are those of Google not Oracle?
Nov 20, 2012 at 17:27 comment added Andres F. @YannisRizos Isn't Unladen Swallow dead as well?
Nov 20, 2012 at 12:19 comment added yannis @MartijnPieters It's also a dead project, according to its site. Removed.
Nov 20, 2012 at 12:19 history edited yannis CC BY-SA 3.0
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Nov 20, 2012 at 12:01 comment added Martijn Pieters I wouldn't call Psyco another implementation, since it runs as an extension to CPython.
Nov 20, 2012 at 11:48 history edited yannis CC BY-SA 3.0
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Nov 20, 2012 at 11:41 history answered yannis CC BY-SA 3.0