This is a bug in that matplotlib is not reading the preferred encoding
correctly, because doing so has undesired side effects in some cases.
An easy workaround is to add the following to the top of your script
(before importing matplotlib):
import locale
locale.setlocale(locale.LC_ALL, '')
Note, you will also need to select a font that has Cyrillic characters.
The default font shipped with matplotlib Vera Sans does not, but you
can use its more-Unicode-complete sibling DejaVu Sans (installed on
most Linux systems by default).
Interestingly, another use had a similar problem quite recently. The
following branch of matplotlib may also fix your problem:
https://github.com/mdboom/matplotlib/tree/locale_formatting
To test this, you would need to build it from source, and then set the
rcParam axes.formatter.use_locale to True.
Cheers,
Mike
On 08/01/2011 12:23 AM, Alexey Uimanov wrote:
Here the code
#!/usr/bin/env python
from pylab import figure, show
from matplotlib.dates import AutoDateLocator, AutoDateFormatter,
drange, DateFormatter
import datetime
import random
dates = drange(datetime.datetime(2010, 1, 1), datetime.datetime(2010,
12,31), datetime.timedelta(days = 1))
opens = map(lambda a: random.random(), dates)
fig = figure()
ax = fig.add_subplot(111)
ax.plot_date(dates, opens, '-')
majloc = AutoDateLocator()
majform = AutoDateFormatter(majloc)
ax.xaxis.set_major_locator(majloc)
ax.xaxis.set_major_formatter(majform)
ax.autoscale_view()
ax.grid(True)
fig.autofmt_xdate()
show()
It is just the same code as date_demo1.py from examples directory with
some modifications
My current locale is ru_RU.UTF-8 and i want plot the date ruller along
X axis in format of my locale, with russian names of months.
I can not do this because of this error when printing the chart
Traceback (most recent call last):
File /usr/lib/python2.7/site-packages/matplotlib/backends/backend_gtk.py,
line 394, in expose_event
self._render_figure(self._pixmap, w, h)
File
/usr/lib/python2.7/site-packages/matplotlib/backends/backend_gtkagg.py,
line 75, in _render_figure
FigureCanvasAgg.draw(self)
File /usr/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py,
line 394, in draw
self.figure.draw(self.renderer)
File /usr/lib/python2.7/site-packages/matplotlib/artist.py, line
55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File /usr/lib/python2.7/site-packages/matplotlib/figure.py, line
798, in draw
func(*args)
File /usr/lib/python2.7/site-packages/matplotlib/artist.py, line
55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File /usr/lib/python2.7/site-packages/matplotlib/axes.py, line 1946, in
draw
a.draw(renderer)
File /usr/lib/python2.7/site-packages/matplotlib/artist.py, line
55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File /usr/lib/python2.7/site-packages/matplotlib/axis.py, line 971, in
draw
tick_tups = [ t for t in self.iter_ticks()]
File /usr/lib/python2.7/site-packages/matplotlib/axis.py, line
907, in iter_ticks
majorLabels = [self.major.formatter(val, i) for i, val in
enumerate(majorLocs)]
File /usr/lib/python2.7/site-packages/matplotlib/dates.py, line
486, in __call__
return self._formatter(x, pos)
File /usr/lib/python2.7/site-packages/matplotlib/dates.py, line
336, in __call__
return self.strftime(dt, self.fmt)
File /usr/lib/python2.7/site-packages/matplotlib/dates.py, line
362, in strftime
return cbook.unicode_safe(dt.strftime(fmt))
File /usr/lib/python2.7/site-packages/matplotlib/cbook.py, line
41, in unicode_safe
else: return unicode(s, preferredencoding)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position
0: ordinal not in range(128)
When lauching this with LANG=C everythig works but datetime prints in
english locale.
Version of matplotlib is 1.0.1
What am i doing wrong ?
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--
Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA
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