printdiff - Compare two Header/ Data/ HDU's ( both )

[gopi487krishna]

printdiff generates a report containing the differences between any two fits files , HDU's their Headers or Data (independently). The output can be generated into a some stream object which can be used for comparison/verification of data.

Basically this can be implemented as a function having overloads based on

1. File path
2. Headers( object can be obtained using get_header())
3. Data ( Table data or image data )
4. HDU ( Both Header and Data together as an HDU object )