Wednesday, April 06, 2011

PyCon: Closing Lightning Talks

PyCon will be held in Montreal in 2014 and 2015.

Twiggy is a new Pythonic logger. It has a totally new design (i.e. it's not like log4j). It's the first really new logging design in 15 years. It uses lots of chaining method calls like jQuery. It makes parsing logs easier. It has a modern config system. It has better traceback printing. It has an asynchronous logger.

Askbot is a Stack Overflow clone in Python.

The Python Miro Community has Python videos. They're rolling out universal subtitle support.

Minuteman is a tool to replace your build.sh. It acts as a workspace and project manager. It is like zc.buildout. It's also like Maven and Gentoo. It's a "metabuild system." It has no docs, no tests, and no users.

Hold Old is My Kid? is a website that helps you figure out your kid's age in days, months, and years.

flufl.enum is an enum library written by Barry Warsaw.

MOE_write is a library for dealing with Python2 vs. Python3. It's from Google. It allows you to maintain 2 or 3 branches (?). It runs 2to3 and 3to2 to patch back and forth between branches. It's a scary hack.

Microsoft stopped funding IronPython. It's still going forward in the open source community. There's a project called IronPython Tools for Visual Studio. It has intellisense that can do crazy, static type analysis. It can figure out the type of a variable even through function calls.

A guy wrote Adventure in Python3. He ported it from the original Fortran code. He even did a weird thing where you can play it within the Python shell. What's weirder is that he wanted people to be able to do things like write "north" in the Python shell, without needing to add the parenthesis to make it a function call. Hence, he overwrote the __repr__ method so that calling "north" would automatically call the function. Cute hack.

Python has a ton of mock testing libraries. Almost everyone should make use of mocks, at least to mock out services only available over the Internet or to test your exceptions handling. There's a new library called "Fudge" that was inspired by "Mocha".

Side note: my buddy Kyle wrote a mocking library called ditto at IronPort/Cisco which has various useful features.

2 comments:

dm said...

"There's a project called IronPython Tools for Visual Studio. It has intellisense that can do crazy, static type analysis. It can figure out the type of a variable even through function calls."

I'm wondering how that works with something like this:

def f(x):
..print(x)

f('abc')
f(1)

Does the intellisense scan for all calls of the function f and if the arg is is always the same type treat x as always having that type? That seems optimistic, but potentially useful. I can't even begin to imagine how they can scan into the bowels of the standard library to infer types returned from function/method calls.

Intellisense and python just makes my head hurt. :)

Shannon -jj Behrens said...

Yep, you're thinking in the right direction. This is similar to how compilers for languages like Ocaml, Haskell, and Scala work. This feature shouldn't be entirely surprising since Microsoft is the foremost funder of Haskell ;) In your example, the right thing to do when inside f is for IntelliSense to show methods from both the str class as well as the int class. You can see why I was impressed by that feature ;)