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cx_freeze and matplotlib


I am trying to freeze an application which imports matplotlib. It all
works fine on the machine where it was frozen. The executable runs
without a glitch.

But when I move the directory containing the frozen executable and
other libs to a new machine, I get the following error:

Traceback (most recent call last):
File
"/home/fccoelho/Downloads/cx_Freeze-3.0.2/initscripts/Console.py",
line 26, in ?
File "epigrass.p y", line 5, in ?
File "Epigrass/manager.py", line 7, in ?
File "Epigrass/simobj.py", line 4, in ?
File "/usr/lib/python2.4/site-packages/matplotlib/__init__.py", line
457, in ?
try: return float(s)
File "/usr/lib/python2.4/site-packages/matplotlib/__init__.py", line
245, in wrapper
if level not in self.levels:
File "/usr/lib/python2.4/site-packages/matplotlib/__init__.py", line
319, in _get_data_path
Return the string representing the configuration dir. If s is the
RuntimeError: Could not find the matplotlib data files

Matplotlib can't find its data files.
Apparently this problem comes up in py2exe as well and it is handled
like this:

from distutils.core import setup
import glob
import py2exe

data = glob.glob(r'C:\ Python23\share\ matplotlib\*')
data.append(r'C :\Python23\shar e\matplotlib\ma tplotlibrc')

setup( console = ["simple_plot.py "],
data_files = [("matplotlibdat a", data)],
)

This is the only thing I need to solve before I can distribute my
frozen package, so please help me here. There must be a way since the
frozen works in the original machine but not on the new Which also has
the same version of matplotib installed.

May 13 '06 #1
2 4852
Flavio wrote:
I am trying to freeze an application which imports matplotlib. It all
works fine on the machine where it was frozen. The executable runs
without a glitch.

But when I move the directory containing the frozen executable and
other libs to a new machine, I get the following error:

Traceback (most recent call last):
File
"/home/fccoelho/Downloads/cx_Freeze-3.0.2/initscripts/Console.py",
line 26, in ?
File "epigrass.p y", line 5, in ?
File "Epigrass/manager.py", line 7, in ?
File "Epigrass/simobj.py", line 4, in ?
File "/usr/lib/python2.4/site-packages/matplotlib/__init__.py", line
457, in ?
try: return float(s)
File "/usr/lib/python2.4/site-packages/matplotlib/__init__.py", line
245, in wrapper
if level not in self.levels:
File "/usr/lib/python2.4/site-packages/matplotlib/__init__.py", line
319, in _get_data_path
Return the string representing the configuration dir. If s is the
RuntimeError: Could not find the matplotlib data files

Matplotlib can't find its data files.


I'm not familiar with cx_freeze, but have you told cx_freeze that you
don't want to bundle matplotlib or cx_freeze has decided that
matplotlib is not going to be bundled? That fact that matplotlib is
loaded from site-package is pretty strange, standalone application are
not supposed to depend on non-system packages.

May 14 '06 #2
My application needs needs matplotlib. So cx_Freeze bundles it in. But
it only bundles matplotlib python modules, not its data files!

In the original machine I believe that the frozen executable is somehow
finding those datafiles in their original locations, which is not
desirable, ecause the bundle should be completely independent of
external files.

May 14 '06 #3

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