Fix small bug where module names were being incorrectly lowercased in

fperez · fperez · commit 82a3698cc0f4 · 2010-08-25T22:13:56.000Z
backend specifications.

Thanks to Evan Patterson and Brian Granger for spotting the problem
and fix.

svn path=/trunk/matplotlib/; revision=8657
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -880,10 +880,11 @@ def use(arg, warn=True):
     if 'matplotlib.backends' in sys.modules:
         if warn: warnings.warn(_use_error_msg)
         return
-    arg = arg.lower()
     if arg.startswith('module://'):
         name = arg
     else:
+        # Lowercase only non-module backend names (modules are case-sensitive)
+        arg = arg.lower()
         be_parts = arg.split('.')
         name = validate_backend(be_parts[0])
         if len(be_parts) > 1:
