six5532one

/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/bin/java -Dakka.loglevel=DEBUG -Dakka.actor.debug.receive=on "-javaagent:/Applications/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar=65435:/Applications/IntelliJ IDEA CE.app/Contents/bin" -Dfile.encoding=UTF-8 -classpath /Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/

six5532one

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six5532one

When to use @property decorators?
you start off a class like this
(A)
class Example(object):
   def __init__(self, age):
       self.age = age
       
later, you realize I don't really want to store age
I want to store birth_year and calculate age dynamically
so, you can rewrite like this

six5532one

import matplotlib.pyplot as plt
import pylab
import numpy as np
import math
import csv
import random
import datetime
import pymongo

from random import randint, uniform

six5532one

from boto.emr.connection import EmrConnection
from boto.emr.step import InstallPigStep, PigStep

AWS_ACCESS_KEY = '' # REQUIRED
AWS_SECRET_KEY = '' # REQUIRED
conn = EmrConnection(AWS_ACCESS_KEY, AWS_SECRET_KEY)

pig_file = 's3://elasticmapreduce/samples/pig-apache/do-reports2.pig'
INPUT = 's3://elasticmapreduce/samples/pig-apache/input/access_log_1'
OUTPUT = '' # REQUIRED, S3 bucket for job output