建议使用类似名称的方法 [英] Suggesting methods with similar names
问题描述
我有一个有许多方法的类Surface。在交互式
窗口中工作时，当我写错了方法名称时，我收到这样的错误：
table.addGlas（）
回溯（最近一次调用最后一次）：
文件"< ; stdin>"，第1行，在？
AttributeError：''Surface''对象没有属性''addGlas''
是否有可能让对象给出一个更好的答案：一个简短的列表
的几个方法名称类似于我拼错的那个？
我已经发现了一些带有语音算法的模块，如soundex，
http://sourceforge.net/projects/advas/
我可以用以下方法生成方法名列表：
toRemove =""" __ delattr__ __dict__ __getattribute__ __module__ __new__
__reduce__ __copy__ __reduce_ex__ __setattr__ __slot__
__weakref__ __str__ __class__ __doc __""" .split（）
methods = sorted（ set（dir（Surface））。差异（toRemove））
问题是调用语音算法来显示排名列表
2-4方法名称最类似于错误的方法。我不知道
如果这个问题需要在python shell中更改，或者在Surface类的
元类中等等。
最后也许这个功能（灵感来自类似的
Mathematica）已经在IPython中： - ]
再见，
Bearophile
是************ @ lycos.com 写道：
我有一个类Surface有很多方法。在交互式
窗口中工作时，当我写错了方法名称时，我收到类似的错误：
table.addGlas（）
Traceback（最近一次调用最后一次）：
文件"< stdin>"，第1行，在？
AttributeError：''Surface''对象有没有属性''addGlas''
是否有可能让对象给出更好的答案：一个简短的列表
几个类似于我拼写错误的方法名称？br />
我找到了一些带语音算法的模块，如soundex，
metaphone等，例如：
http://sourceforge.net/projects/advas/
我可以用这样的方法生成方法名列表： br /> toRemove =""" __ delattr__ __dict__ __getattribute__ __module__ __new__
__reduce__ __copy__ __reduce_ex__ __setattr__ __slot__
__ werefref__ __str__ __class__ __doc __""" .split（）
methods = sorted（set（dir（Surface））。difference（toRemove））
问题正在调用语音算法来显示2-4个方法名称的排序列表，这些名称与被称为错误的方法名称最相似。我不知道
如果这个问题需要在python shell中更改，或者在Surface类的
元类中等等。
最后也许这个功能（灵感来自类似的Mathematica已经在IPython中了： - ]
你可以通过覆盖__getattribute__（未经测试）来实现这个目标：
def __getattribute __（self，name）：
试试：
object .__ getattribute __（self，name）＃或者你的超类是什么
＃或者使用super（），但我必须查找语法和
＃早餐正在等待;）
除了AttributeError：
＃find类似属性
个建议= ....
引发AttributeError（'''''''''''''''''''''''''''''''''''' >
表示％s？"％（名称，建议））
我将它留给专家将其包装成通用元类，装饰器
等;）
-
Benjamin Niemann
电子邮件：粉红色at odahoda dot de
WWW： http://www.odahoda.de/
>你可以通过覆盖__getattribute__（未经测试）来实现这个目标：
我相信OP会更好地使用__getattr__，只有在
属性不是时才调用通过正常查找找到，这是他唯一需要/ b $ b需要/想要定制控制的时间。
TJR
谢谢，__ getattr__做我需要的:-)
聪明的帮助可以轻松设计......
熊拥抱，
Bearophile
I have a class Surface with many methods. Working in the interactive
window I receive an error like this when I write the wrong method name:
table.addGlas()
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: ''Surface'' object has no attribute ''addGlas''
Is it possibile to make the object give a better answer: a short list
of few method names similar to the one I''ve misspelled?
I''ve found some modules with phonetic algorithms like soundex,
metaphone, etc, for example here:
http://sourceforge.net/projects/advas/
I can produce the list of method names with this:
toRemove = """__delattr__ __dict__ __getattribute__ __module__ __new__
__reduce__ __copy__ __reduce_ex__ __setattr__ __slot__
__weakref__ __str__ __class__ __doc__""".split()
methods = sorted( set(dir(Surface)).difference(toRemove) )
The problem is calling the phonetic algorithm to show a ranked list of
the 2-4 method names most similar to the wrong one called. I don''t know
if this problem requires a change in the python shell, or in the
metaclass of that Surface class, etc.
And in the end maybe this functionality (inspired by a similar
Mathematica one) is already inside IPython :-]
Bye,
Bearophile
be************@lycos.com wrote:
I have a class Surface with many methods. Working in the interactive
window I receive an error like this when I write the wrong method name:table.addGlas()
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: ''Surface'' object has no attribute ''addGlas''
Is it possibile to make the object give a better answer: a short list
of few method names similar to the one I''ve misspelled?
I''ve found some modules with phonetic algorithms like soundex,
metaphone, etc, for example here:
http://sourceforge.net/projects/advas/
I can produce the list of method names with this:
toRemove = """__delattr__ __dict__ __getattribute__ __module__ __new__
__reduce__ __copy__ __reduce_ex__ __setattr__ __slot__
__weakref__ __str__ __class__ __doc__""".split()
methods = sorted( set(dir(Surface)).difference(toRemove) )
The problem is calling the phonetic algorithm to show a ranked list of
the 2-4 method names most similar to the wrong one called. I don''t know
if this problem requires a change in the python shell, or in the
metaclass of that Surface class, etc.
And in the end maybe this functionality (inspired by a similar
Mathematica one) is already inside IPython :-]
You could achieve this by overriding __getattribute__ (untested):
def __getattribute__(self, name):
try:
object.__getattribute__(self, name) # or whatever is your superclass
# or use super(), but I would have to lookup the syntax and
# breakfast is waiting ;)
except AttributeError:
# find similar attributes
suggestions = ....
raise AttributeError("''Surface'' object has no attribute ''%s''. Did you
mean %s?" % (name, suggestions))
I leave it to the experts to wrap this into a generic metaclass, decorator
etc. ;)
--
Benjamin Niemann
Email: pink at odahoda dot de
WWW: http://www.odahoda.de/
> You could achieve this by overriding __getattribute__ (untested):
I believe OP would do better to use __getattr__, which is only called when
the attribute is not found by the normal lookup, which is the only time he
needs/wants customized control.
TJR
Thank you, __getattr__ does what I need :-)
A smart help can be designed easely...
Bear hugs,
Bearophile
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