jackiekazil

import requests
import sys

key = sys.argv[1]
base = 'http://api.data.gov/USDA/ERS/data/Arms/Surveys'
url = '%s?api_key=%s' % (base, key)

response = requests.get(url)

print response.json()

jackiekazil

{
  "nodes":[
		{"name":"node1","group":1},
		{"name":"node2","group":2},
		{"name":"node3","group":2},
		{"name":"node4","group":3}
	],
	"links":[
		{"source":2,"target":1,"weight":1},
		{"source":0,"target":2,"weight":3}

jackiekazil

WiDS Python class

Getting started with Python can confusing. Hopefully, this clarifies somethings. In this class, we will go over basic concepts to give you a solid intro to the Python programming language.

• Python 2 vs Python 3
• python interpretor vs ipython vs code editor vs notebook
• Anaconda vs virtualenv vs no virtualenv (Advanced intro)
  • Anaconda cheatsheet

Repos referenced in this class

jackiekazil

Test

jackiekazil

Test

jackiekazil

What is on my python path?

Knowning where python is trying to find files is important.

Let's say try to import a module and you get an Import Error.

Like this:

>>>  import foo
---------------------------------------------------------------------------

jackiekazil

How do I round to 2 decimals?

In python, you have floats and decimals that can be rounded. If you care about the accuracy of rounding, use decimal type. If you use floats, you will have issues with accuracy.

All the examples use demical types, except for the original value, which is automatically casted as a float.

To set the context of what we are working with, let's start with an original value.

Original Value