I have recently had a problem wrapping a script on a linux machine. The
problem was with matplotlib and the path to mpl-data.
The problem seemed to be with the cx_Freeze.hooks function
def load_matplotlib(finder, module): # taken from cx_Freeze 5.1.1
"""the matplotlib module requires data to be found in mpl-data in the
same directory as the frozen executable so oblige it"""
dir = os.path.join(module.path[0], "mpl-data")
finder.IncludeFiles(dir, "mpl-data")
that returned the incorrect path to the mpl-data on linux (at least on my Linux
mint 18 machine). With a little cunning I was able to work around this problem
but wonder if the load_matplotlib could be changed to avoid this issue.
Here is my offering for a solution.
The matplotlib package provides the function get_data_path to find the path to
mpl-data - although this function does not seem to be well documented.
>>> matplotlib.get_data_path()
u'/usr/local/lib/python2.7/dist-packages/matplotlib/mpl-data'
>>> exit()
$ cd /usr/local/lib/python2.7/dist-packages/matplotlib/mpl-data
$ ls
fonts images lineprops.glade matplotlibrc sample_data stylelib
so one could potentially write
def load_matplotlib(finder, module):
"""the matplotlib module requires data to be found in mpl-data in the
same directory as the frozen executable so oblige it"""
from matplotlib import get_data_path
finder.IncludeFiles(get_data_path(), "mpl-data")
Alternatively, if you don't want to do the import from matplotlib, one could
reimplement the algorithm implemented in get_data_path
I hope that is of some use and apologize if there is a well-established bug
reporting process that I should have used - I looked but could not find one.
Dominic
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