* INCR-249: Make compatible with Python 3.x without breaking Python 2.7 support --> openedx/core/djangoapps/content/block_structure * INCR-249: Grouped six package * INCR-249: Remove the duplicate lines for absolute_import
* INCR-249: Make compatible with Python 3.x without breaking Python 2.7 support --> openedx/core/djangoapps/content/block_structure * INCR-249: Grouped six package * INCR-249: Remove the duplicate lines for absolute_import