added support for xlwt in exceltools

jdh2358 · jdh2358 · commit 751cfaf7531c · 2008-12-11T03:04:59.000Z
svn path=/trunk/matplotlib/; revision=6560
diff --git a/doc/devel/release_guide.rst b/doc/devel/release_guide.rst
@@ -46,6 +46,12 @@ Packaging
 
 * on windows, unix2dos the rc file
 
+* make a branch of the svn revision that is released, in case we need
+  to do a bug fix release.  Eg, from the top level of the mpl svn
+  tree, the one which has "branches", "tags" and "trunk", do::
+
+      > svn copy trunk/matplotlib branches/v0_98_4_maint
+
 .. _release-uploading:
 
 Uploading
diff --git a/lib/mpl_toolkits/exceltools.py b/lib/mpl_toolkits/exceltools.py
@@ -21,7 +21,15 @@
 """
 import copy
 import numpy as np
-import pyExcelerator as excel
+
+try:
+    import xlwt as excel
+except ImportError:
+    try:
+        import pyExcelerator as excel
+    except ImportError:
+        raise ImportError('You must install xlwt or pyExcelterator to use the exceltools')
+
 import matplotlib.cbook as cbook
 import matplotlib.mlab as mlab
 
