Python Matplotlib - Howto make line graph

I have the attached code. I want to take load.csv and plot it to a line graph using matplotlib and python. The code attached isnt't working and I am looking for guidance. Any ideas?

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.mlab as mlab
import matplotlib.cbook as cbook
import matplotlib.ticker as ticker

datafile = open('load.csv')
print 'loading', datafile
r = mlab.csv2rec(datafile)

r.sort()
r = r[-30:]


fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(r.SERVER, r.LOAD, 'o-')
fig.autofmt_xdate()


N = len(r)
ind = np.arange(N)

def format_date(x, pos=None):
    thisind = np.clip(int(x+0.5), 0, N-1)
    return r.date[thisind].strftime('%Y-%m-%d')

fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(ind, r.adj_close, 'o-')
ax.xaxis.set_major_formatter(ticker.FuncFormatter(format_date))
fig.autofmt_xdate()

plt.show()

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load.csv