Rotate axis text in python matplotlib -

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i can't figure out how rotate text on x axis. time stamp, number of samples increase, closer , closer until overlap. i'd rotate text 90 degrees samples closer together, aren't overlapping.

below have, works fine exception can't figure out how rotate x axis text.

import sys  import matplotlib matplotlib.use('agg') import matplotlib.pyplot plt import datetime  font = {'family' : 'normal',         'weight' : 'bold',         'size'   : 8}  matplotlib.rc('font', **font)  values = open('stats.csv', 'r').readlines()  time = [datetime.datetime.fromtimestamp(float(i.split(',')[0].strip())) in values[1:]] delay = [float(i.split(',')[1].strip()) in values[1:]]  plt.plot(time, delay) plt.grid(b='on')  plt.savefig('test.png')

easy way

as described here, there existing method in matplotlib.pyplot figure class automatically rotates dates appropriately figure.

you can call after plot data (i.e.ax.plot(dates,ydata) :

fig.autofmt_xdate()

if need format labels further, checkout above link.

non-datetime objects

as per languitar's comment, method suggested non-datetime xticks not update correctly when zooming, etc. if it's not datetime object used x-axis data, should follow tommy's answer:

for tick in ax.get_xticklabels():     tick.set_rotation(45)

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