CowExcept

Spice up those exceptions with cowexcept!

 ______________________________________ 
< NameError: name 'baz' is not defined >
 -------------------------------------- 
     \   ^__^
      \  (oo)\_______
         (__)\       )\/\
             ||----w |
             ||     ||

Install

pip install cowexcept

Usage

All you have to do to get started is activate cowexcept and then any exceptions whenceforth will be in beautiful cowsay format:

>>> import cowexcept
>>> cowexcept.activate()
>>> 1/0
 _____________________________________ 
/ Traceback (most recent call last):  \
|   File "...", line 1, in ...        |
|     1 / 0                           |
\ ZeroDivisionError: division by zero /
 ------------------------------------- 
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

If no cow or cow file is specified, cows are chosen at random (from cowsay -l from the python-cowsay package). When activating cowexcept, a cow name can be provided to set the cow for all exceptions:

>>> import cowexcept
>>> cowexcept.activate("elephant-in-snake")
>>> 1 / 0
 _____________________________________
/ Traceback (most recent call last):  \
|   File "...", line 1, in ...        |
|     1 / 0                           |
|     ~~^~~                           |
\ ZeroDivisionError: division by zero /
 -------------------------------------
   \
    \              ....       
           ........    .      
          .            .      
         .             .      
.........              .......
..............................

To deactivate cowexcept call cowexcept.deactivate() and any exceptions will be handled with Python's default exception handler.

Using Your Own Cows

You can specify alternative cows to display using the set_cow and set_cow_from_file functions.

The set_cow function takes the name of any cowfile included in the python-cowsay package and sets the cow to be displayed in exceptions.

>>> import cowexcept
>>> cowexcept.activate()
>>> cowexcept.set_cow("dragon-and-cow")
>>> 1 / 0
 _____________________________________ 
/ Traceback (most recent call last):  \
|   File "...", line 1, in ...        |
|     1 / 0                           |
|     ~~^~~                           |
\ ZeroDivisionError: division by zero /
 -------------------------------------
                       \                    ^    /^
                        \                  / \  // \
                         \   |\___/|      /   \//  .\
                          \  /O  O  \__  /    //  | \ \           *----*
                            /     /  \/_/    //   |  \  \          \   |
                            @___@`    \/_   //    |   \   \         \/\ \
                           0/0/|       \/_ //     |    \    \         \  \
                       0/0/0/0/|        \///      |     \     \       |  |
                    0/0/0/0/0/_|_ /   (  //       |      \     _\     |  /
                 0/0/0/0/0/0/`/,_ _ _/  ) ; -.    |    _ _\.-~       /   /
                             ,-}        _      *-.|.-~-.           .~    ~
            \     \__/        `/\      /                 ~-. _ .-~      /
             \____(oo)           *.   }            {                   /
             (    (--)          .----~-.\        \-`                 .~
             //__\\  \__ Ack!   ///.----..<        \             _ -~
            //    \\               ///-._ _ _ _ _ _ _{^ - - - - ~

You can also specify custom cows by passing in a cowfile or TextIO stream to the set_cow_from_file function:

>>> from io import StringIO
>>> import cowexcept
>>> cowexcept.set_cow_from_file(StringIO("""
... $the_cow = <<EOC;
...          $thoughts
...           $thoughts
...            ___
...           (o o)
...          (  V  )
...         /--m-m-
... EOC
... """))
>>> cowexcept.activate()
>>> 1 / 0
 _____________________________________ 
/ Traceback (most recent call last):  \
|   File "...", line 1, in ...        |
|     1 / 0                           |
|     ~~^~~                           |
\ ZeroDivisionError: division by zero /
 -------------------------------------
         \
          \
           ___
          (o o)
         (  V  )
        /--m-m-