matplotlib-users Mailing List for matplotlib

Paul
Eric's attachment was missing.
This is the crontab we use, which he described:
- we use bash
- the file config/bash_env has most of what is usually in .bashrc;
	for cron we source it, for shell we source it in .bashrc
- "daily.py --use_defaults" is the command that we want to run
- don't forget that early inclusion of
	matplotlib.use('Agg')
## here is the relevant part of crontab
# m h dom mon dow command
40 20 * * * (cd $HOME; . config/bash_env; daily.py --use_defaults) > $HOME/tmp/cron.log 2>& 1
Reference for matplotlib.use('Agg'):
http://matplotlib.sourceforge.net/faq/howto_faq.html?highlight=agg#generate-images-without-having-a-window-popup
Jules

Paul Simon wrote:
> I've written my first python script with matplotlib, which works fine at 
> the command line but not with cron. It's quite puzzling to me, and 
> probably involves some path declaration that I don't know about.
> 
> #plot data from automate.csv
> import matplotlib
Right here you should include:
matplotlib.use('Agg')
Without this, you are loading the interactive graphical backend, gtkagg. 
I don't know whether this is causing the problem with running under 
cron, but it is worth changing anyway.
I don't know why your debug output file is stopping after the first 
fontManager line.
What does your crontab file look like? I think this is more a cron 
problem than an mpl problem. Cron tends to run things in a very 
different environment than one has when running from the command line, 
and it is common--at least in my own experience--to have this sort of 
problem with things that work on the command line and not from cron.
Attached is a crontab file that we use in this manner. Note that we set 
the shell to /bin/bash; otherwise cron will use the most minimal shell 
version. Second, note that before executing the script, we execute a 
file that sets up the environment to be similar to what we have when 
logged in normally. Third, the redirection of stdout and stderr to a 
log file facilitates debugging, allowing you to see the result of 
debugging print statements as well as any exceptions or other error 
messages.
Eric
> import datetime
> import numpy
> from matplotlib import legend
> from matplotlib.pyplot import figure, show, plot_date, setp, ylabel, 
> savefig, xlabel
> from matplotlib.dates import DayLocator, HourLocator, DateLocator, 
> DateFormatter,drange, MinuteLocator, date2num, num2date
> from matplotlib.mlab import csv2rec
> from matplotlib.ticker import *
> newr = csv2rec('/home/paulsimon/Documents/automate.csv')
> x = date2num(newr.field(0))
> fig = figure()
> ax1 = fig.add_subplot(111)
> line1, = ax1.plot_date(newr['dattim'], newr['bench_1'], '-r',label = 
> 'bench 1')
> line2, = ax1.plot_date(newr['dattim'], newr['bench_2'], '-b', label = 
> 'bench 2')
> line3, = ax1.plot_date(newr['dattim'], newr['eave'],'-k', label = 'eave')
> line4, = ax1.plot_date(newr['dattim'], newr['outside'], '-g', label = 
> 'outside')
> 
> ylabel('temperature')
> xlabel(r'time/date')
> hours = HourLocator(range(0,26,4))
> 
> dateformatter = DateFormatter('%I:%M %p\n%m/%d/%y')
> ax1.xaxis.set_major_formatter(dateformatter)
> ax1.xaxis.set_major_locator(hours)
> ax1.set_ylim(30,100)
> # Rotate x labels
> for label in ax1.xaxis.get_ticklabels():
> label.set_fontsize(8)
> 
> ax1.grid(True)
> ax1.xaxis.grid(False)
> yminorLocator = MultipleLocator(5)
> ax1.yaxis.set_minor_locator(yminorLocator)
> ax1.yaxis.grid(True,which='major', linestyle ='-')
> ax1.yaxis.grid(True,which='minor',linestyle = ':')
> leg = ax1.legend(('bench 1', 'bench 2', ' eave', 'outside'), 'lower 
> right', shadow = True)
> for t in leg.get_texts():
> t.set_fontsize('small')
> 
> savefig('/home/paulsimon/python_scripts/image.png', format = 'png')
> 
> 
> Running with --debug option, here are the two different output files:
> 
> $HOME=/home/paulsimon
> CONFIGDIR=/home/paulsimon/.matplotlib
> matplotlib data path /usr/lib/python2.5/site-packages/matplotlib/mpl-data
> loaded rc file 
> /usr/lib/python2.5/site-packages/matplotlib/mpl-data/matplotlibrc
> matplotlib version 0.91.2
> verbose.level debug
> interactive is False
> units is False
> platform is linux2
> loaded modules: ['_bisect', 'xml.sax.urlparse', 'distutils', 
> 'matplotlib.matplotlib', 'datetime', 'matplotlib.tempfile', 
> 'distutils.sysconfig', 'encodings.encodings', 'pytz.cStringIO', 'xml', 
> 'distutils.dep_util', 'struct', 'tempfile', 'xml.sax.urllib', 'imp', 
> '_struct', 'pytz.os', 'zipimport', 'string', 'encodings.utf_8', 
> 'matplotlib.__future__', 'pytz.tzinfo', 'pytz.datetime', 'distutils.re', 
> 'bisect', 'signal', 'random', 'xml.sax.xmlreader', 'matplotlib.pytz', 
> 'distutils.log', 'pytz.tzfile', 'cStringIO', 'pkgutil', 'locale', 
> 'xml.sax.saxutils', 'encodings', 'dateutil', 'matplotlib.warnings', 
> 'matplotlib.string', 'pytz.pytz', 'urllib', 'matplotlib.sys', 're', 
> 'new', 'math', 'fcntl', 'UserDict', 'distutils.os', 'matplotlib', 
> 'codecs', 'md5', '_locale', 'matplotlib.sre_constants', 'matplotlib.os', 
> 'thread', 'pkg_resources', 'weakref', 'itertools', 'distutils.spawn', 
> 'distutils.sys', 'os', 'sre_parse', '__future__', 'matplotlib.copy', 
> 'xml.sax.types', '_sre', '__builtin__', 'matplotlib.re', 'operator', 
> 'distutils.util', 'distutils.string', 'matplotlib.datetime', 
> 'posixpath', 'errno', '_socket', 'binascii', 'sre_constants', 
> 'matplotlib.md5', 'types', 'pytz.sys', 'xml.sax.handler', 
> 'pytz.pkg_resources', 'xml.sax.os', 'matplotlib.xml', '_codecs', 'pytz', 
> 'matplotlib.pyparsing', 'copy', 'socket', '_types', 
> 'matplotlib.dateutil', 'hashlib', 'posix', 'encodings.aliases', 
> 'matplotlib.fontconfig_pattern', 'exceptions', 'xml.sax._exceptions', 
> 'pytz.bisect', 'distutils.distutils', 'copy_reg', 'sre_compile', 
> 'xml.sax', '_hashlib', '_random', 'pytz.struct', 'site', '__main__', 
> 'shutil', 'matplotlib.weakref', 'strop', 'encodings.codecs', 'gettext', 
> 'matplotlib.rcsetup', 'pytz.sets', 'xml.sax.codecs', 'stat', '_ssl', 
> 'warnings', 'encodings.types', 'sets', 'sys', 'xml.sax.sys', 'os.path', 
> 'pytz.gettext', 'matplotlib.distutils', '_weakref', 'distutils.errors', 
> 'urlparse', 'linecache', 'matplotlib.shutil', 'time']
> Using fontManager instance from 
> /home/paulsimon/.matplotlib/fontManager.cache
> numerix numpy 1.0.4
> backend GTKAgg version 2.12.1
> findfont found Bitstream Vera Sans, normal, normal 400, normal, 8.0
> findfont returning 
> /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
> findfont found Bitstream Vera Sans, normal, normal 400, normal, 8.0
> findfont returning 
> /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
> findfont found Bitstream Vera Sans, normal, normal 400, normal, 8.0
> 
> ...
> 
> 
> findfont returning 
> /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
> findfont found Bitstream Vera Sans, normal, normal 400, normal, 9.996
> findfont returning 
> /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
> 
> And this is the output file (complete) running under cron:
> 
> $HOME=/home/paulsimon
> CONFIGDIR=/home/paulsimon/.matplotlib
> matplotlib data path /usr/lib/python2.5/site-packages/matplotlib/mpl-data
> loaded rc file 
> /usr/lib/python2.5/site-packages/matplotlib/mpl-data/matplotlibrc
> matplotlib version 0.91.2
> verbose.level debug
> interactive is False
> units is False
> platform is linux2
> loaded modules: ['_bisect', 'xml.sax.urlparse', 'distutils', 
> 'matplotlib.matplotlib', 'datetime', 'matplotlib.tempfile', 
> 'distutils.sysconfig', 'encodings.encodings', 'pytz.cStringIO', 'xml', 
> 'distutils.dep_util', 'struct', 'tempfile', 'xml.sax.urllib', 'imp', 
> '_struct', 'pytz.os', 'zipimport', 'string', 'matplotlib.__future__', 
> 'pytz.tzinfo', 'pytz.datetime', 'distutils.re', 'bisect', 'signal', 
> 'random', 'xml.sax.xmlreader', 'matplotlib.pytz', 'distutils.log', 
> 'pytz.tzfile', 'cStringIO', 'pkgutil', 'locale', 'xml.sax.saxutils', 
> 'encodings', 'dateutil', 'matplotlib.warnings', 'matplotlib.string', 
> 'pytz.pytz', 'urllib', 'matplotlib.sys', 're', 'new', 'math', 'fcntl', 
> 'UserDict', 'distutils.os', 'matplotlib', 'codecs', 'md5', '_locale', 
> 'matplotlib.sre_constants', 'matplotlib.os', 'thread', 'pkg_resources', 
> 'weakref', 'itertools', 'distutils.spawn', 'distutils.sys', 'os', 
> 'sre_parse', '__future__', 'matplotlib.copy', 'xml.sax.types', '_sre', 
> '__builtin__', 'matplotlib.re', 'operator', 'distutils.util', 
> 'distutils.string', 'matplotlib.datetime', 'posixpath', 'errno', 
> '_socket', 'binascii', 'sre_constants', 'matplotlib.md5', 'types', 
> 'pytz.sys', 'xml.sax.handler', 'pytz.pkg_resources', 'xml.sax.os', 
> 'matplotlib.xml', '_codecs', 'pytz', 'matplotlib.pyparsing', 'copy', 
> 'socket', '_types', 'matplotlib.dateutil', 'hashlib', 'posix', 
> 'encodings.aliases', 'matplotlib.fontconfig_pattern', 'exceptions', 
> 'xml.sax._exceptions', 'pytz.bisect', 'distutils.distutils', 'copy_reg', 
> 'sre_compile', 'xml.sax', '_hashlib', '_random', 'pytz.struct', 'site', 
> '__main__', 'shutil', 'matplotlib.weakref', 'strop', 'encodings.codecs', 
> 'gettext', 'matplotlib.rcsetup', 'pytz.sets', 'xml.sax.codecs', 'stat', 
> '_ssl', 'warnings', 'encodings.types', 'encodings.ascii', 'sets', 'sys', 
> 'xml.sax.sys', 'os.path', 'pytz.gettext', 'matplotlib.distutils', 
> '_weakref', 'distutils.errors', 'urlparse', 'linecache', 
> 'matplotlib.shutil', 'time']
> numerix numpy 1.0.4
> Using fontManager instance from 
> /home/paulsimon/.matplotlib/fontManager.cache
> 
> The plot output took me a lot of time to work out, which I enjoyed, and 
> the output is dazzling!
> 
> Paul Simon
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> ------------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users

Hi Sandro,
There is no image output when the script is run from cron. I think that is 
what you are asking.
I thought about updating matplotlib but at this point don't want to change 
versions unless all else fails. I"m running Mandriva 2008.1 and it's a lot 
of work.
Is there a more detailed way I can debug to find out where the failure is?
Paul
----- Original Message ----- 
From: "Sandro Tosi" <mat...@gm...>
To: "Paul Simon" <ps...@so...>
Cc: <mat...@li...>
Sent: Thursday, June 25, 2009 12:00 PM
Subject: Re: [Matplotlib-users] Running matplotlib job with cron
> Hello Paul,
>
> On Thu, Jun 25, 2009 at 19:13, Paul Simon<ps...@so...> wrote:
>> I've written my first python script with matplotlib, which works fine at 
>> the
>> command line but not with cron. It's quite puzzling to me, and probably
>> involves some path declaration that I don't know about.
>
> I may have read the mail fast, but I can't see any notice about if the
> image outputs are different (other than the textual outputs).
>
>> matplotlib version 0.91.2
>
> You might also want to update: matplotlib latest release is 0.98.5.3
>
> Regards,
> -- 
> Sandro Tosi (aka morph, morpheus, matrixhasu)
> My website: http://matrixhasu.altervista.org/
> Me at Debian: http://wiki.debian.org/SandroTosi
>
> 

-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

Hello Paul,
On Thu, Jun 25, 2009 at 19:13, Paul Simon<ps...@so...> wrote:
> I've written my first python script with matplotlib, which works fine at the
> command line but not with cron. It's quite puzzling to me, and probably
> involves some path declaration that I don't know about.
I may have read the mail fast, but I can't see any notice about if the
image outputs are different (other than the textual outputs).
> matplotlib version 0.91.2
You might also want to update: matplotlib latest release is 0.98.5.3
Regards,
-- 
Sandro Tosi (aka morph, morpheus, matrixhasu)
My website: http://matrixhasu.altervista.org/
Me at Debian: http://wiki.debian.org/SandroTosi

Does this code work for anyone else?
import numpy as np
import matplotlib.cm as cm
import matplotlib.pyplot as plt
n = 100000
x = np.random.standard_normal(n)
y = 2.0 + 3.0 * x + 4.0 * np.random.standard_normal(n)
xmin = x.min()
xmax = x.max()
ymin = y.min()
ymax = y.max()
plt.hexbin(x,y, cmap=cm.jet, gridsize=(50,50), extent=[-2,2,-10,10])
plt.axis([xmin, xmax, ymin, ymax])
plt.title("Hexagon binning")
cb = plt.colorbar()
cb.set_label('counts')
plt.show()
Without the extent option, I get the expected plot of all the data. But,
what I'd like is to trim out some of the empty regions. If I just reset
xmin, xmax, etc. the binning of the data still occurs over the entire range
of the data in x and y, although the plot is correct, but the plot doesn't
have the desired 50x50 bins. With the "extent" option I get these errors:
Traceback (most recent call last):
 File "HexBin.py", line 23, in <module>
 plt.hexbin(x,y, cmap=cm.jet, extent=[-2,2,-10,10])
 File "/usr/lib64/python2.5/site-packages/matplotlib/pyplot.py", line 1920,
in hexbin
 ret = gca().hexbin(*args, **kwargs)
 File "/usr/lib64/python2.5/site-packages/matplotlib/axes.py", line 5447,
in hexbin
 collection.update(kwargs)
 File "/usr/lib64/python2.5/site-packages/matplotlib/artist.py", line 548,
in update
 raise AttributeError('Unknown property %s'%k)
AttributeError: Unknown property extent
Best,
Alex
On Thu, Jun 18, 2009 at 11:27 AM, Alexandar Hansen <vio...@gm...>wrote:
> Ok, fair enough. Let's use that:
>
> ------------------
> import numpy as np
> import matplotlib.cm as cm
> import matplotlib.pyplot as plt
>
> n = 100000
> x = np.random.standard_normal(n)
> y = 2.0 + 3.0 * x + 4.0 * np.random.standard_normal(n)
> xmin = x.min()
> xmax = x.max()
> ymin = y.min()
> ymax = y.max()
>
> plt.hexbin(x,y, cmap=cm.jet, gridsize=(50,50), extent=[-2,2,-10,10])
> plt.axis([xmin, xmax, ymin, ymax])
> plt.title("Hexagon binning")
> cb = plt.colorbar()
> cb.set_label('counts')
>
>
> plt.show()
> ----------------------
>
>
> I trimmed this from the example, which works fine. Without the extent
> option, I get the expected plot of all the data. But, what I'd like is to
> trim out some of the empty regions. If I just reset xmin, xmax, etc. the
> binning of the data still occurs over the entire range of the data in x and
> y, although the plot is correct, but the plot doesn't have the desired 50x50
> bins. With the "extent" option I get these errors:
>
>
> Traceback (most recent call last):
> File "HexBin.py", line 23, in <module>
> plt.hexbin(x,y, cmap=cm.jet, extent=[-2,2,-10,10])
> File "/usr/lib64/python2.5/site-packages/matplotlib/pyplot.py", line
> 1920, in hexbin
> ret = gca().hexbin(*args, **kwargs)
> File "/usr/lib64/python2.5/site-packages/matplotlib/axes.py", line 5447,
> in hexbin
> collection.update(kwargs)
> File "/usr/lib64/python2.5/site-packages/matplotlib/artist.py", line 548,
> in update
> raise AttributeError('Unknown property %s'%k)
> AttributeError: Unknown property extent
>
>
> The same thing as before. It doesn't know what 'extent' is for some reason.
> Or, perhaps more accurately, hexbin knows what it is but artist.py doesn't?
> The only "solution" i've come up with is to trim the original data that I
> input, but that is far from ideal.
>
>
> Best,
>
> Alex
>
>
>
>
>
>
>
> On Wed, Jun 17, 2009 at 7:50 PM, John Hunter <jd...@gm...> wrote:
>
>> On Wed, Jun 17, 2009 at 5:31 PM, Alexandar Hansen<vio...@gm...>
>> wrote:
>> > Hello,
>> >
>> > I've been having fun using hexbin, but I'd like to have consistent bin
>> sizes
>> > and plot ranges for different sets of data. What I'm finding is that the
>> bin
>> > sizes are primarily determined by the input data mins and maxes. For
>> > instance, I'm plotting data with something like:
>>
>> Instead of a "something like" could you please post a complete example
>> that we can run so we can replicate the error. This saves us a lot of
>> time. Also, please report any version info, as described at
>>
>>
>> http://matplotlib.sourceforge.net/faq/troubleshooting_faq.html#report-a-problem
>>
>> For example, the following runs for me using mpl svn:
>>
>> import numpy as np
>> import matplotlib.cm as cm
>> import matplotlib.pyplot as plt
>>
>> n = 100000
>> x = np.random.standard_normal(n)
>> y = 2.0 + 3.0 * x + 4.0 * np.random.standard_normal(n)
>> xmin = x.min()
>> xmax = x.max()
>> ymin = y.min()
>> ymax = y.max()
>>
>> plt.subplots_adjust(hspace=0.5)
>> plt.subplot(121)
>> plt.hexbin(x,y, cmap=cm.jet, extent=[xmin, xmax, ymin, ymax])
>> plt.axis([xmin, xmax, ymin, ymax])
>> plt.title("Hexagon binning")
>> cb = plt.colorbar()
>> cb.set_label('counts')
>>
>> plt.subplot(122)
>> plt.hexbin(x,y,bins='log', cmap=cm.jet)
>> plt.axis([xmin, xmax, ymin, ymax])
>> plt.title("With a log color scale")
>> cb = plt.colorbar()
>> cb.set_label('log10(N)')
>>
>> plt.show()
>>
>
>

I am trying to display an image with coordinates from a worldfile so that i
can plot GPS points on it later, but after i make the transformation the
axes coordinates are unchanged and the y axis is upside down.
My code so far is this:
fig=plt.figure()
ax=fig.add_subplot(2,1,1)
img=imread('imgpath')
file1=file(r'imgpath')
transValList=[]
for eachline in file1:
 transValList.append(eachline)
t=tsf.Affine2D.from_values(transValList[0],transValList[1],transValList[2],transValList[3],transValList[4],transValList[5])
ax.imshow(img, transform=t)
fig.show()
Any suggestions as to what is going on?
-- 
View this message in context: http://www.nabble.com/transformation-coordinates-not-correct-tp24207983p24207983.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

I've written my first python script with matplotlib, which works fine at the command line but not with cron. It's quite puzzling to me, and probably involves some path declaration that I don't know about.
#plot data from automate.csv
import matplotlib
import datetime
import numpy
from matplotlib import legend
from matplotlib.pyplot import figure, show, plot_date, setp, ylabel, savefig, xlabel
from matplotlib.dates import DayLocator, HourLocator, DateLocator, DateFormatter,drange, MinuteLocator, date2num, num2date
from matplotlib.mlab import csv2rec
from matplotlib.ticker import *
newr = csv2rec('/home/paulsimon/Documents/automate.csv')
x = date2num(newr.field(0))
fig = figure()
ax1 = fig.add_subplot(111)
line1, = ax1.plot_date(newr['dattim'], newr['bench_1'], '-r',label = 'bench 1')
line2, = ax1.plot_date(newr['dattim'], newr['bench_2'], '-b', label = 'bench 2')
line3, = ax1.plot_date(newr['dattim'], newr['eave'],'-k', label = 'eave')
line4, = ax1.plot_date(newr['dattim'], newr['outside'], '-g', label = 'outside')
ylabel('temperature')
xlabel(r'time/date')
hours = HourLocator(range(0,26,4))
dateformatter = DateFormatter('%I:%M %p\n%m/%d/%y')
ax1.xaxis.set_major_formatter(dateformatter)
ax1.xaxis.set_major_locator(hours)
ax1.set_ylim(30,100)
# Rotate x labels
for label in ax1.xaxis.get_ticklabels():
 label.set_fontsize(8)
ax1.grid(True)
ax1.xaxis.grid(False)
yminorLocator = MultipleLocator(5)
ax1.yaxis.set_minor_locator(yminorLocator)
ax1.yaxis.grid(True,which='major', linestyle ='-')
ax1.yaxis.grid(True,which='minor',linestyle = ':')
leg = ax1.legend(('bench 1', 'bench 2', ' eave', 'outside'), 'lower right', shadow = True)
for t in leg.get_texts():
 t.set_fontsize('small')
 
savefig('/home/paulsimon/python_scripts/image.png', format = 'png')
Running with --debug option, here are the two different output files:
$HOME=/home/paulsimon
CONFIGDIR=/home/paulsimon/.matplotlib
matplotlib data path /usr/lib/python2.5/site-packages/matplotlib/mpl-data
loaded rc file /usr/lib/python2.5/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 0.91.2
verbose.level debug
interactive is False
units is False
platform is linux2
loaded modules: ['_bisect', 'xml.sax.urlparse', 'distutils', 'matplotlib.matplotlib', 'datetime', 'matplotlib.tempfile', 'distutils.sysconfig', 'encodings.encodings', 'pytz.cStringIO', 'xml', 'distutils.dep_util', 'struct', 'tempfile', 'xml.sax.urllib', 'imp', '_struct', 'pytz.os', 'zipimport', 'string', 'encodings.utf_8', 'matplotlib.__future__', 'pytz.tzinfo', 'pytz.datetime', 'distutils.re', 'bisect', 'signal', 'random', 'xml.sax.xmlreader', 'matplotlib.pytz', 'distutils.log', 'pytz.tzfile', 'cStringIO', 'pkgutil', 'locale', 'xml.sax.saxutils', 'encodings', 'dateutil', 'matplotlib.warnings', 'matplotlib.string', 'pytz.pytz', 'urllib', 'matplotlib.sys', 're', 'new', 'math', 'fcntl', 'UserDict', 'distutils.os', 'matplotlib', 'codecs', 'md5', '_locale', 'matplotlib.sre_constants', 'matplotlib.os', 'thread', 'pkg_resources', 'weakref', 'itertools', 'distutils.spawn', 'distutils.sys', 'os', 'sre_parse', '__future__', 'matplotlib.copy', 'xml.sax.types', '_sre', '__builtin__', 'matplotlib.re', 'operator', 'distutils.util', 'distutils.string', 'matplotlib.datetime', 'posixpath', 'errno', '_socket', 'binascii', 'sre_constants', 'matplotlib.md5', 'types', 'pytz.sys', 'xml.sax.handler', 'pytz.pkg_resources', 'xml.sax.os', 'matplotlib.xml', '_codecs', 'pytz', 'matplotlib.pyparsing', 'copy', 'socket', '_types', 'matplotlib.dateutil', 'hashlib', 'posix', 'encodings.aliases', 'matplotlib.fontconfig_pattern', 'exceptions', 'xml.sax._exceptions', 'pytz.bisect', 'distutils.distutils', 'copy_reg', 'sre_compile', 'xml.sax', '_hashlib', '_random', 'pytz.struct', 'site', '__main__', 'shutil', 'matplotlib.weakref', 'strop', 'encodings.codecs', 'gettext', 'matplotlib.rcsetup', 'pytz.sets', 'xml.sax.codecs', 'stat', '_ssl', 'warnings', 'encodings.types', 'sets', 'sys', 'xml.sax.sys', 'os.path', 'pytz.gettext', 'matplotlib.distutils', '_weakref', 'distutils.errors', 'urlparse', 'linecache', 'matplotlib.shutil', 'time']
Using fontManager instance from /home/paulsimon/.matplotlib/fontManager.cache
numerix numpy 1.0.4
backend GTKAgg version 2.12.1
 findfont found Bitstream Vera Sans, normal, normal 400, normal, 8.0
findfont returning /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
 findfont found Bitstream Vera Sans, normal, normal 400, normal, 8.0
findfont returning /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
 findfont found Bitstream Vera Sans, normal, normal 400, normal, 8.0
... 
findfont returning /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
 findfont found Bitstream Vera Sans, normal, normal 400, normal, 9.996
findfont returning /usr/lib/python2.5/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
And this is the output file (complete) running under cron:
$HOME=/home/paulsimon
CONFIGDIR=/home/paulsimon/.matplotlib
matplotlib data path /usr/lib/python2.5/site-packages/matplotlib/mpl-data
loaded rc file /usr/lib/python2.5/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 0.91.2
verbose.level debug
interactive is False
units is False
platform is linux2
loaded modules: ['_bisect', 'xml.sax.urlparse', 'distutils', 'matplotlib.matplotlib', 'datetime', 'matplotlib.tempfile', 'distutils.sysconfig', 'encodings.encodings', 'pytz.cStringIO', 'xml', 'distutils.dep_util', 'struct', 'tempfile', 'xml.sax.urllib', 'imp', '_struct', 'pytz.os', 'zipimport', 'string', 'matplotlib.__future__', 'pytz.tzinfo', 'pytz.datetime', 'distutils.re', 'bisect', 'signal', 'random', 'xml.sax.xmlreader', 'matplotlib.pytz', 'distutils.log', 'pytz.tzfile', 'cStringIO', 'pkgutil', 'locale', 'xml.sax.saxutils', 'encodings', 'dateutil', 'matplotlib.warnings', 'matplotlib.string', 'pytz.pytz', 'urllib', 'matplotlib.sys', 're', 'new', 'math', 'fcntl', 'UserDict', 'distutils.os', 'matplotlib', 'codecs', 'md5', '_locale', 'matplotlib.sre_constants', 'matplotlib.os', 'thread', 'pkg_resources', 'weakref', 'itertools', 'distutils.spawn', 'distutils.sys', 'os', 'sre_parse', '__future__', 'matplotlib.copy', 'xml.sax.types', '_sre', '__builtin__', 'matplotlib.re', 'operator', 'distutils.util', 'distutils.string', 'matplotlib.datetime', 'posixpath', 'errno', '_socket', 'binascii', 'sre_constants', 'matplotlib.md5', 'types', 'pytz.sys', 'xml.sax.handler', 'pytz.pkg_resources', 'xml.sax.os', 'matplotlib.xml', '_codecs', 'pytz', 'matplotlib.pyparsing', 'copy', 'socket', '_types', 'matplotlib.dateutil', 'hashlib', 'posix', 'encodings.aliases', 'matplotlib.fontconfig_pattern', 'exceptions', 'xml.sax._exceptions', 'pytz.bisect', 'distutils.distutils', 'copy_reg', 'sre_compile', 'xml.sax', '_hashlib', '_random', 'pytz.struct', 'site', '__main__', 'shutil', 'matplotlib.weakref', 'strop', 'encodings.codecs', 'gettext', 'matplotlib.rcsetup', 'pytz.sets', 'xml.sax.codecs', 'stat', '_ssl', 'warnings', 'encodings.types', 'encodings.ascii', 'sets', 'sys', 'xml.sax.sys', 'os.path', 'pytz.gettext', 'matplotlib.distutils', '_weakref', 'distutils.errors', 'urlparse', 'linecache', 'matplotlib.shutil', 'time']
numerix numpy 1.0.4
Using fontManager instance from /home/paulsimon/.matplotlib/fontManager.cache
The plot output took me a lot of time to work out, which I enjoyed, and the output is dazzling!
Paul Simon

Hi,
I have the same problem. If you found the solution could you please post?
Thanks
uma
Yves-Alexandre wrote:
> 
> Hi,
> 
> I'm trying to add label to a histogram with multiple data. The doc says 
> "label can also be a sequence of strings" but when I try:
> 
> plt.hist([listA, listB, listC], bins=25, histtype='bar', 
> alpha=0.75,rwidth=0.85,label=['A','B','C'])
> 
> I got an error:
> "AttributeError: 'tuple' object has no attribute 'startswith'"
> (for the entire traceback see http://paste.pocoo.org/show/119820/ )
> 
> is it me or a bug?
> 
> Can I add a legend in another way?
> 
> thanks in advance!
> 
> -Yva.
> 
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View this message in context: http://www.nabble.com/Histogram-with-multiple-data-tp23787422p24197283.html
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Hi,
I have built SVN revision 7239 of matplotlib and basemap for Python 2.6 
using Visual Studio 2008 and the geos 3.0.4 library. Seems to work for me.
http://www.lfd.uci.edu/~gohlke/#pythonlibs
Christoph