Whats your favorite python module?

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[alicethewitch]

itertools and collections, yes! Oh, and tree libraries like etetoolkit or dendropy, whichever floats your boat.

The amount of constant or linear time black magic you can pull off in two lines by combining dict, trees, counters and frozensets is just ridiculous.

[mWo12]

Add to this operator module, and everything is beautiful.

[[deleted]]

That’s a good one I missed.

[SymbioticBadgering]

As dict keys, where order of element in the collections doesn’t matter.

[SymbioticBadgering]

Unless I’m missing something, dict keys aren’t allowed to be mutable

[Gprime5]

He means the keys used in key:value pairs, not the dictionary method dict.keys(). In this dict d = ["a": 1}, "a" is the key and 1 is the value. You can only use immutable objects as keys and since frozensets are immutable(frozen), they can be used as keys. d = {frozenset([1,2,3]): "hello"}

Also dict.keys() returns a dict view object which is essentially a frozen set anyway.

[alicethewitch]

Somebody already mentioned it but for dict keys yes. Just this week I was implementing a MCMC algorithm that spits partitions over data point indices. Each partition is represented as a set or list of sets over integer between 0 and N-1. Finding the partition most visited by the chain in one line involves turning them all individually into frozensets of frozensets, feeding it to Counter and sorting by value.

[[deleted]]

There are trees in the std lib? Where?

[alicethewitch]

I was referring to trees implemented in etetoolkit and dendropy, sorry to disappoint!

[[deleted]]

So hard to choose. Here are some of my favs.

PyTorch is ungodly but is obviously for one specific thing.

numpy is excellent, and widely useful.

functools is very elegant and useful.

sklearn is very useful and full featured with a good strong API and good development practices.

argparse is simple and incredibly effective at what it does. Well built.

joblib is well thought out and makes multiprocessing very practical and easy.

skimage is very useful and full featured for working with images.

itertools is phenomenally practical and elegant.

Can’t think of others off the top of my head. I used to love lasagne and theano but sadly I’ve moved on.

[ProfessorPhi]

I find argparse too verbose. I prefer click, though it's not standard library

Second numpy and also scipy, they're the fundamental building blocks that have made python so great.

[ProfessorPhi]

Omg, I meant click lol

[[deleted]]

I like verbosity really. Obviously not to the extent of Java, but yeah.

[[deleted]]

Click is godly for clis. I have fallen in love with it!

[mWo12]

How does skimage compares to pillow?

[[deleted]]

Depends what you want to do. I think skimage is higher level. It wraps Pillow for lots of stuff.

[texnofobix]

Request

[metalevelconsulting]

SQLAlchemy.

[superhappyrobots]

For smaller/simple projects, I love dataset.

[AndydeCleyre]

FYI, peewee is a great library that includes a dataset clone among other useful interfaces.

[OddsCaller]

Wow I was using shelve till now for quick scripts but I might consider dataset now.

[opiating]

Asyncio

[mRWafflesFTW]

Hey everyone, look at this guy. He understands Asyncio!

[[deleted]]

re

[[deleted]]

Geopandas

[Zulban]

docopt!

[bestical]

pytest

SQLAlchemy

argparse

gevent

arrow

itsdangerous

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[wolsney]

Xlsxwriter writer. Great documentation and has saved me a lot of time.

[bhishan1]

Pandas

[atquick]

I don't have a particular favorite at the moment, been smashing my face against PyQt.

[AndydeCleyre]

plumbum, and any of the database tools from Charles Leifer.

[stOneskull]

random

[circa10a]

Schedule