Disclaimer

dutc = Don't Use This Code (!!)

Did You mean?

This module implements "Did You Mean?" functionality on AttributeError.

It's not what it does but how it does it!

>>> class Foo(object):
...  def bar(self): pass
... 
>>> foo = Foo()

Without didyoumean:

>>> foo.baz
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'Foo' object has no attribute 'baz'

>>> getattr(foo, 'baz')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'Foo' object has no attribute 'baz'

After importing didyoumean:

>>> import didyoumean
>>> foo.baz
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'Foo' object has no attribute 'baz'

Maybe you meant: .bar

>>> import didyoumean
>>> getattr(foo, 'baz')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'Foo' object has no attribute 'baz'

Maybe you meant: .bar

It works on old-style classes, new-style classes, type objects, builtins, everything.

>>> # old-style class
... 
>>> class Foo:
...   def bar(self): pass
... 
>>> Foo.baz
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: class Foo has no attribute 'baz'

Maybe you meant: .bar

>>> # new-style class
... 
>>> class Foo(object):
...   def quux(self): pass
... 
>>> foo = Foo()
>>> foo.baz
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'Foo' object has no attribute 'baz'

Maybe you meant: .quux

>>> # types
... 
>>> class Bar(Foo):
...   def xyzzy(self): pass
... 
>>> Bar.qux
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'Bar' has no attribute 'qux'

Maybe you meant: .quux

>>> Bar.xyzz
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'Bar' has no attribute 'xyzz'

Maybe you meant: .xyzzy

>>> # builtins & everything else?
... 
>>> object._new__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'object' has no attribute '_new__'

Maybe you meant: .__new__

>>> object()._new__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'object' object has no attribute '_new__'

Maybe you meant: .__new__

>>> # works with getattr
... 
>>> getattr(object, '_new__')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'object' has no attribute '_new__'

Maybe you meant: .__new__

>>> # works with getattr
... #   ... even if you don't want it to!
... 
>>> g = getattr
>>> import didyoumean
>>> getattr(object, '_new__')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'object' has no attribute '_new__'

Maybe you meant: .__new__

>>> g(object, '_new__')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'object' has no attribute '_new__'

Maybe you meant: .__new__

How do I install it?

$ pip install dutc-didyoumean

How do I turn it off?

Restart your interpreter.

How does it work?

Well, see, that's the fun of it.

Is this approach ‘portable’?

Probably not.

Does this approach work on ...?

It works on Python 2. It works on Linux. It works on x86_64. It's unfortunate that it works anywhere.

Should I use this code?

Definitely not.

License (GPLv3)

Copyright © 2014 James Powell james@dontusethiscode.com

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.