fixed a bug in savefig, saving to a nonexistent directory

ddale · ddale · commit 0385c3d4ab84 · 2007-12-06T18:32:44.000Z
would result in a crash in some circumstances. Closes bug
1699614

svn path=/trunk/matplotlib/; revision=4649
diff --git a/CHANGELOG b/CHANGELOG
@@ -1,3 +1,7 @@
+2007-12-06 fixed a bug in savefig, saving to a nonexistent directory 
+           would result in a crash in some circumstances. Closes bug
+           1699614 - DSD
+
 2007-12-06 fixed a bug in rcsetup, see bug 1845057 - DSD
 
 ===============================================================
diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
@@ -1,6 +1,7 @@
 """
 Figure class -- add docstring here!
 """
+import os
 import sys
 
 import numpy as npy
@@ -772,6 +773,9 @@ def savefig(self, *args, **kwargs):
 
         format - one of the file extensions supported by the active backend.
         """
+        path = os.path.abspath(os.path.split(args[0])[0])
+        if not os.access(path, os.W_OK):
+            raise IOError('%s is not a writeable directory'%path)
 
         for key in ('dpi', 'facecolor', 'edgecolor'):
             if not kwargs.has_key(key):
