I find this a good idea. Are you willing to update the README?

If you'd be will to discuss the patterns that I'm not familiar with.
On May 3, 2014 7:06 PM, "Sakis Kasampalis" [email protected]
wrote:

I find this a good idea. Are you willing to update the README?

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Go to town. I noted a couple of patterns that either weren't patterns (graph-search), or were somewhat obsolete (null) in modern Python. Feel free to either disagree, or remove them.

You are right about graph search, it was checked in by a contributor and I decided to keep it not because it's a pattern but as an idiom that demonstrates how you can work with graphs in python. As for null, I'm not sure about how useful it is. Can you give references about what makes it obsolete in Python?

Maybe you could create a new directory called "algorithms", or project
called "python-algorithms". That way it doesn't pollute the patterns.

GvR considered it unpythonic to either not check the value, or just catch
the exception. The latter of which is usually preferred.

http://legacy.python.org/dev/peps/pep-0336/
http://legacy.python.org/dev/peps/pep-0336/

Abstract
None should be a callable object that when called with any
arguments has no side effect and returns None.

BDFL Pronouncement
This PEP is rejected. It is considered a feature that None raises
an error when called. The proposal falls short in tests for
obviousness, clarity, explictness, and necessity. The provided Switch
example is nice but easily handled by a simple lambda definition.
See python-dev discussion on 17 June 2005.

Since Python developers are usually encouraged to rely on exceptions rather
than ever returning None (thus reducing the existence of None/NULLs
compared to other languages), this kind of check should be rare.

On Mon, May 5, 2014 at 9:03 AM, Sakis Kasampalis
[email protected]:

You are right about graph search, it was checked in by a contributor and I
decided to keep it not because it's a pattern but as an idiom that
demonstrates how you can work with graphs in python. As for null, I'm not
sure about how useful it is. Can you give references about what makes it
obsolete in Python?

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