Example

If you print something in your terminal or notebook, e.g.

print('Epoch [4/300]', 3, 3231.32, 'loss=-22.4e-9 time=121mc')

you will see a very bleak output:

Typed_print gets your logs a little bit more cheerful and easy to read.

The output is colorized based on the argument's type. Additionally, some keywords can be highlighted (like Epoch here). If you print a string, the numbers in the string will get highlighted.

• For a light background you will get:

• For a dark background:

Of course, everything is customizable. For example, you can override list printing like that:

print([131, 'I love cats', 'String with number 9'])

Light palette	Dark palette

Features

• Type-based coloring and printing layout.
• Automatic highlighting guided by regexp or list of keywords.
• Extensible and customizable framework: easily change representation for objects of any type including the built-in types like int, list, dict, etc.

Install

pip install typed_print

Tested with Ubuntu 14.04 and Python 3.6.

Usage

For the examples above the printing function is initialized as follows:

import typed_print as tp

print = tp.init(palette='light', # or 'dark' 
                str_mode=tp.HIGHLIGHT_NUMBERS, 
                highlight_word_list=['Epoch'])

Arguments

• palette: highlighting palette. Use dark if the background of your terminal is dark and light otherwise
• str_mode: what to highlight in strings and sting representations of objects of unknown types. Possible values are:
  • tp.HIGHLIGHT_NOTHING
  • tp.HIGHLIGHT_DIGITS
  • tp.HIGHLIGHT_NUMBERS
  • tp.HIGHLIGHT_CUSTOM: in this case you should pass a compiled regex extractor as re_custom argument to tp.init, e.g.
    • re_custom=re.compile("\d+")
• custom_type_map: a dictionary with correspondence type:processor_fn. processor_fn should return string representation for the object, similarly to __str__ or __repr__.
  • highlight_word_list: a list of words to highlight. In the example above highlight_word_list=['Epoch']

Why overriding print function?

I did not find a way to override __str__ or __repr__ methods for the built-in types. Thus the only way to change the way the objects of built-in type are printed is to override print function.

UPDATE: @alex-bender mentioned here that there is actually a way to override built-in types.