Modernize the code now that Python 2.5 is no longer supported

- Use print function instead of print statement;
- Use new exception handling;
- Use in operator instead of has_key();
- Do not use tuple arguments in functions;
- Other miscellaneous improvements.

This is based on output of `futurize --stage1`, with some
manual corrections.

1 files changed, 1 insertions, 1 deletions

diff --git a/sphinx/util/pycompat.py b/sphinx/util/pycompat.py
index 9941dc0c0..4c9ef18d3 100644
--- a/sphinx/util/pycompat.py
+++ b/sphinx/util/pycompat.py
@@ -41,7 +41,7 @@ if sys.version_info >= (3, 0):
         source = refactoring_tool._read_python_source(filepath)[0]
         try:
             tree = refactoring_tool.refactor_string(source, 'conf.py')
-        except ParseError, err:
+        except ParseError as err:
             # do not propagate lib2to3 exceptions
             lineno, offset = err.context[1]
             # try to match ParseError details with SyntaxError details