drewconway

import twitter
import networkx as NX

# Create an authenticated Api object in order to download user data
api_user='drewconway'
api_pswd='peugeot'
api=twitter.Api(username=api_user,password=api_pswd)

# The seed user to be analyzed
seed='drewconway'

drewconway

import twitter
import networkx as NX
import time

# Create an authenticated Api object in order to download user data
api_user='your_twitter_id'
api_pswd='your_twitter_password'
api=twitter.Api(username=api_user,password=api_pswd)

# The seed user to be analyzed

drewconway

def snowball_build(twitter_api,seed_user,rounds):
# Main network building loop
    for r in range(0,rounds):
        if r<1:
            # Create initial egonet
            net=create_egonet(twitter_api,seed_user)
            if net.size()>99:
                print 'Running this script will exceed your Twitter API rate limit.  You already have enough friends!'
                break
        else:

drewconway

def snowball_search(network,twitter_api,seed_user,cur_round):
# Snowball uses create_egonet to generate new structure
    users=nodes_at_degree(network,cur_round)    # Get all the users at the current round degree
    for u in users:
        time.sleep(5)    # Wait five seconds in between to not hammer Twitter servers (H/T: @amyiris)
        search_results=create_egonet(twitter_api,u)
        network=NX.compose(network,search_results)
    return network

def create_egonet(twitter_api,seed_user):

drewconway

#Store network data as plain text file to be analyzed later
twitter_net._name=seed+'_k'+str(k)  # Name the network after the seed and the number of snowball rounds
NX.write_edgelist(twitter_net,path='drewconway_k2.edgelist',delimiter='\t')

drewconway

#Store network data as plain text file to be analyzed later
twitter_net._name=seed+'_k'+str(k)  # Name the network after the seed and the number of snowball rounds
NX.write_edgelist(twitter_net,path='drewconway_k2.edgelist',delimiter='\t')

drewconway

#Store network data as plain text file to be analyzed later
twitter_net._name=seed+'_k'+str(k)  # Name the network after the seed and the number of snowball rounds
NX.write_edgelist(twitter_net,path='your_net.edgelist',delimiter='\t')

drewconway

from networkx import *
import os
os.chdir('/Where/You/Stored/TheData/File/')
G=read_edgelist('your_net.edgelist',delimiter='\t',create_using=Graph(),nodetype=str)
info(G)

drewconway

from networkx import core
kcores=core.find_cores(G)
core_items=kcores.items()
two_core=[(a) for (a,b) in core_items if b>1]
K=subgraph(G,two_core)
info(K)

drewconway

N=K.neighbors('your_twitter_id')
F=[]
for u in N:
    D=K.neighbors(u)
    for i in D:
        if N.count(i)<1 and i is not 'your_twitter_id':
            F.append(i)