PyPrettyPrint

Pretty print class attributes in tables

About

This simple python script allows you to print class and object attributes and their desired properties in tabular form. You might find it useful as a debugging tool if you're building a large classes with multiple inheritances. Features:

• Modify the width of the output tables
• Choose your own set of properties (AKA attributes of attributes) that you want to lookup
• Run your object's attributes through your own string outputing function

Examples

Case 1:

Print the name, representation, type, and memory location of a class's attributes:

Script:

from PrettyClassPrint.PrettyClassPrint import PrettyClassPrint as PCP
pp = PCP.pretty_print	#Aliasing the pretty print function for quick access
pp(bool)		#Prints the attributes and methods of the bool built in class in a table

Output:

Case 2:

Customize the output to:

• Show the __name__, type(), __sizeof__, and hex(id()) of its attributes.
• Set the respective column widths to 10%, 40%, 25%, 25%
• Set the vertical table separator to " |$| "
• Set the horizontal table separator to "+\u2014+"

Script:

from PrettyClassPrint.PrettyClassPrint import PrettyClassPrint as PCP

class CustomPrint(PCP):			#The PrettyClassPrint must be inherited as a base class
	#Overwriting some of the default PrettyClassPrint class attributes to serve our needs
	display_properties = ["__name__", type, "__sizeof__", lambda x: hex(id(x))];
	display_portions = [0.10, 0.40, 0.25, 0.25];
	display_vertical_separator = " |$| ";
	display_horizontal_separator = "+\u2014+";

cpp = CustomPrint.pretty_print		#Aliasing our custom the pretty print function for quick access
cpp(bool)				#Custom printing

Output:

Installation

In your project's root directory, create a new ./PrettyClassPrint/ folder.

Download the PrettyClassPrint.py and place it in the folder you just made.

To import the PrettyClassPrint class, use from PrettyClassPrint.PrettyClassPrint import PrettyClassPrint

Planned improvements

• Add derived class tree printing
• Develop ktinker based GUI preview of attributes and derivation trees