Could Python supplant Java?
Lulu of the Lotus-Eaters
mertz at gnosis.cx
Wed Aug 21 17:50:21 CEST 2002
|The way I look at it is this: when using a dynamically typed
|language, how often do I mix the type of data I store in a
Far more often than you probably think, coming from a statically typed
I agree that it is rarely necessary to change 'foo' from an integer to a
string, or the like. But I write a program like the below all the time:
text = filelike.read()
...do stuff with text...
'filelike' might be a file handle. It might be a urllib object. It
might be a gzip object. It might be a string buffer. Or it might be
some custom object with a .read() method that I had not even thought of
when I wrote the code.
In some OOP languages you might handle this by requiring that 'filelike'
inherit from File, or whatever. But that is far too rigid a class
hierarchy requirement, IMO.
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