New to Python: Features

[Richard Blackwood]

Alex Martelli wrote:

>Cameron Laird <claird at lairds.us> wrote:
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>>>>31. Concepts of Protocols (whereby one may organize related methods into
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>>>No.  Test-driven development is the norm in Python.
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>>... but see <URL: http://www.pypackage.org/packages/python-dbc >
>>for one among several DbC initiatives.
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>...and PEP 246 for Protocols (and more relevantly, pluggable
>adaptation).  Eby's PyProtocols implements these ideas (and more); my
>talk given earlier this year at OSCON (on masquerading and adaptation
>design patterns in Python) has a short section on PEP 246, you should
>find the PDF at www.strakt.com.
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>Alex
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Oh great, Python has nearly everything, you just have to add on 
modules.  Not bad, pretty cool actually.  If use this PyProtocols will 
my program be slower than if protocols were built-into the language?