Prateek Shrivastava vetional

Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

###SSH into a remote machine###

ssh [email protected]
#or by ip address
ssh [email protected]

exit: exit ###Install Something###

#If it's a new server, update apt-get first thing

	import pandas as pd
	import pymysql
	from sqlalchemy import create_engine

	engine = create_engine('mysql+pymysql://<user>:<password>@<host>[:<port>]/<dbname>')

	df = pd.read_sql_query('SELECT * FROM table', engine)
	df.head()

	#ifdef __ANDROID__
	#include "jni.h"
	#include "android/log.h"
	#define LOG_TAG "psx"
	#define PRINTMSGS(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)

	#endif
	#include <stdio.h>
	#include <stdlib.h>
	#include <math.h>

	import pandas as pd
	import numpy as np
	from sklearn.feature_extraction import DictVectorizer

	def encode_onehot(df, cols):
	"""
	One-hot encoding is applied to columns specified in a pandas DataFrame.

	Modified from: https://gist.github.com/kljensen/5452382