containerutils: new Python-2.4 defaultdict
- Allows to use defaultdict with Python 2.4 as it comes with 2.5 and higher.
Signed-off-by: Patrick Glauner <patrick.oliver.glauner@cern.ch>
Tested-by: Tibor Simko <tibor.simko@cern.ch>
Tibor Simko <tibor.simko@cern.ch> | Sep 17 2013, 16:13 |