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 |
                ||     ||

The cowexcept.activate() call is to avoid unused import flags from IDEs or style checkers and avoiding any import-time side effects. If unused imports and import-time side effects do not bother you, and you would prefer to avoid the horrible extra line used to explicitly activate cowexcept, use import cowexcept.auto instead and this will activate cowexcept on import.

To deactivate cowexcept call cowexcept.deactivate() and any exceptions will be handled as before.

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-