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Subject: Re: A little test for you =?utf-8?Q?Guys=F0=9F=98=9C?=
Date: Tue, 22 Sep 2015 22:48:42 +0300
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Xref: csiph.com comp.lang.python:96989

Python_Teacher via Python-list <python-list@python.org> writes:

...
> Let's define the function plural :
>
> def plural(words):
>     plurals = []
>     for word in words:
>        plurals.append(word + 's')
>     return plurals
>
> for word in plural(['cabagge','owl','toy']):
>     print word

plural() should accept a single word. To handle list of words, call
map(plural, words)

...
> def str2print(f):
>     def str2print_wrap(*args, **kwargs):
>         """wrapper"""
>         s = f(*args, **kwargs)
>         print s
>    return str2print_wrap
>
> def hello(s):
>     """ Return "Hello $s" """
>     return "%s %s" % ("Hello", s)

Use functools.wraps() to preserve the function info for introspection:

  import functools
  
  def prints_result(function):
      @functools.wraps(function)
      def wrapper(*args, **kwargs):
          result = function(*args, **kwargs)
          print(result)
          return result #XXX return
      return wrapper
  
  @prints_result
  def hello(...):
      pass