* file-api: major refactor
migrate from file_manager.py to file.py
Signed-off-by: Chinmay Pai <chinmaydpai@gmail.com>
* file-api: migrate to file-api
remove file_manager stuff and migrate to file-api
Signed-off-by: Chinmay Pai <chinmaydpai@gmail.com>
* Use Python 3 style print function
* Use 'Exception as e' instead of 'Exception, e'
* Unpack tuple arguments explicitly in instead of relying on auto unpacking
* Use consistent indentation
* Use 0 if stock_frozen_upto_days is None
