gen oplist no longer runs on import

gen_oplist.py

@@ -45,14 +45,16 @@ def chomp(s):
     return "".join(r)
 
 
-import scalar, sparse, tensor
+def generate():
+    """Generate the op list"""
+    import scalar, sparse, tensor
 
-print_title("Theano Op List", "~")
-print ""
-print ".. contents:: "
-print ""
+    print_title("Theano Op List", "~")
+    print ""
+    print ".. contents:: "
+    print ""
 
-for module in [scalar, sparse, tensor]:
+    for module in [scalar, sparse, tensor]:
 	print_title('module: `%s`' % module.__name__, '=')
 
 	print_title('Op Classes', '-')
@@ -94,3 +96,5 @@ for module in [scalar, sparse, tensor]:
 	# a little trailing whitespace
 	print ""
 
+if __name__ == "__main__":
+    generate()