Here is some additional information regarding this problem
OS -- Linux 2.6.22-16-generic #1 SMP Mon Jan 26 00:07:52 GMT 2009 i686
GNU/Linux
Moved matplotlibrc to "os.environ['HOME'] = '/tmp/matlibconfig'" because
of write permission problems with apache child processes.
No customizations to matplotlibrc
Ubuntu Gutsy
Python-matplotlib 0.90.1-2ubuntu1
Python-matplotlib-data 0.90.1-2ubuntu1
Python-matplotlib-doc 0.90.1-2ubuntu1
Code
# This code is called by another python script
# and I am not even using the parameters that
# are passed
# Code works from python idle
import sys, math
import matplotlib_config_path # this sets configpath as described above
import matplotlib
matplotlib.use('Agg') # use non gui backend
from matplotlib import pylab as plt
import numpy as np
import os,sys
def VT(batt_v, batt_temp0, batt_temp1, batt_ts, plotfile, dur):
t =[]
for x in batt_ts:# time axis to 0 based
t.append((x - batt_ts[0])/divsor[dur])
fig = plt.figure()
ax1 = fig.add_subplot(111) # subplot 1 col x 1 row
ax1.plot([1,2,3])
fig.savefig('test.png')
Error returned is the same
rlp_GMC wrote:
>
> When I try to save a fig to a file I get the error
>
> TclError Couldn't Connect to display ":0.0"
>
> I looked in the Maplotlib users manual (latest version pg 144-146) and
> tried the following with no luck. BTW why is the same module named
> differently Linux/Win ?
>
> import matplotlib
> matplotlib.use('Agg')
> import matplotlib.pylab as plt (linux ) or, import matplotlib.pyplot as
> plt (Windows)
> fig = plt.figure()
> ax = fig.add_subplot(111)
> ax.plot([1,2,3])
> fig.savefig('test.png')
>
> Is Matplotlib trying to display a plot to the monitor?
>
> rlp
>
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