Strange error after installing matplotlib from macports

Damon McDougall <damon.mcdougall@...287...> writes:

>>> from matplotlib.figure import Figure
ValueError: invalid literal for int() with base 10: '836.364'

I have no clue what is going on. Does anybody have any ideas?

Could you do the following: (if you already exited that Python shell
and can't reproduce the problem any longer, you can delete your
~/.matplotlib/fontList.cache and try again)

from pdb import pm
pm()

This should get you to a debugger. Then type:

up
p fh
p line
p vals

to get some more information on what is going wrong.

···

--
Jouni K. Sepp�nen
http://www.iki.fi/jks

Hi Jouni,

Sure. Here is the output from your suggestion:

Python 2.5.4 (r254:67916, Sep 15 2009, 11:16:42)
[GCC 4.2.1 (Apple Inc. build 5646)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from pdb import pm
>>> from matplotlib.figure import Figure
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File "/opt/local/lib/python2.5/site-packages/matplotlib/figure.py", line 19, in <module>
     from axes import Axes, SubplotBase, subplot_class_factory
   File "/opt/local/lib/python2.5/site-packages/matplotlib/axes.py", line 12, in <module>
     import matplotlib.axis as maxis
   File "/opt/local/lib/python2.5/site-packages/matplotlib/axis.py", line 10, in <module>
     import matplotlib.font_manager as font_manager
   File "/opt/local/lib/python2.5/site-packages/matplotlib/font_manager.py", line 1301, in <module>
     _rebuild()
   File "/opt/local/lib/python2.5/site-packages/matplotlib/font_manager.py", line 1292, in _rebuild
     fontManager = FontManager()
   File "/opt/local/lib/python2.5/site-packages/matplotlib/font_manager.py", line 1010, in __init__
     self.afmlist = createFontList(self.afmfiles, fontext='afm')
   File "/opt/local/lib/python2.5/site-packages/matplotlib/font_manager.py", line 578, in createFontList
     font = afm.AFM(fh)
   File "/opt/local/lib/python2.5/site-packages/matplotlib/afm.py", line 294, in __init__
     parse_afm(fh)
   File "/opt/local/lib/python2.5/site-packages/matplotlib/afm.py", line 282, in parse_afm
     dcmetrics_ascii, dcmetrics_name = _parse_char_metrics(fh)
   File "/opt/local/lib/python2.5/site-packages/matplotlib/afm.py", line 168, in _parse_char_metrics
     bbox = _to_list_of_ints(vals[3][2:])
   File "/opt/local/lib/python2.5/site-packages/matplotlib/afm.py", line 47, in _to_list_of_ints
     return [_to_int(val) for val in s.split()]
ValueError: invalid literal for int() with base 10: '836.364'
>>> pm()
> /opt/local/lib/python2.5/site-packages/matplotlib/afm.py(47)_to_list_of_ints()
-> return [_to_int(val) for val in s.split()]
(Pdb) up
> /opt/local/lib/python2.5/site-packages/matplotlib/afm.py(168)_parse_char_metrics()
-> bbox = _to_list_of_ints(vals[3][2:])
(Pdb) p fh
<closed file '/Users/Damon/Library/Fonts/lcmssi8.afm', mode 'r' at 0x1019b67b0>
(Pdb) p line
'C 0 ; WX 708.333 ; N Gamma ; B 0 0 836.364 684.027 ;'
(Pdb) p vals
['C 0 ', ' WX 708.333 ', ' N Gamma ', ' B 0 0 836.364 684.027 ']

Also, after some curiosity, I realised the file ~/.matplotlib/fontList.cache doesn't exist. In fact, the ~/.matplotlib directory is empty, there aren't even any hidden files. On my other computer, matplotlib works fine and the ~/.matplotlib directory contains three files: fontList.cache, fontManager.cache and tex.cache.

Hope this explains more. Thanks in advance for any help.
Regards,
--Damon

···

On 15 Sep 2009, at 11:42, Jouni K. Seppänen wrote:

Damon McDougall <damon.mcdougall@...287...> writes:

from matplotlib.figure import Figure

ValueError: invalid literal for int() with base 10: '836.364'

I have no clue what is going on. Does anybody have any ideas?

Could you do the following: (if you already exited that Python shell
and can't reproduce the problem any longer, you can delete your
~/.matplotlib/fontList.cache and try again)

from pdb import pm
pm()

This should get you to a debugger. Then type:

up
p fh
p line
p vals

to get some more information on what is going wrong.

--
Jouni K. Seppänen
http://www.iki.fi/jks

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