[Python-checkins] Why? Re: r53925 - sandbox/trunk/pep362/pep362.py
Brett Cannon
bcannon at gmail.com
Mon Feb 26 21:40:47 CET 2007
On 2/26/07, Guido van Rossum <guido at python.org> wrote:
> On 2/26/07, Brett Cannon <bcannon at gmail.com> wrote:
> > On 2/26/07, Jim Jewett <jimjjewett at gmail.com> wrote:
> > > Why are you removing the __str__ function?
> > >
> >
> > Because annotations prevent an accurate representation. How do you
> > get int to display as 'int'?
>
> By changing type.__str__ to return self.__name__? I would be open to
> considering this.
>
Guido said that we can do this if Anthony likes it for either __str__
or __repr__. What do you think, Anthony?
-Brett
> > > For me,
> > >
> > > (1) one of the more frustrating parts of the introspection API is
> > > that you can't (easily) use it to create a new "similar" function.
> > >
> > > (2) one of the main uses of introspection is seeing what I have --
> > > and "equivalent" source code is a useful output format.
> > >
> >
> > I undderstand; I put in the method for a reason. But if I can't have
> > it properly display all information then I don't want to have to
> > support a partial implementation.
> >
> > -Brett
> >
> > >
> > >
> > > On 2/25/07, brett.cannon <python-checkins at python.org> wrote:
> > > > Author: brett.cannon
> > > > Date: Sun Feb 25 23:59:37 2007
> > > > New Revision: 53925
> > > >
> > > > Modified:
> > > > sandbox/trunk/pep362/pep362.py
> > > > Log:
> > > > Remove __str__ support.
> > > >
> > > >
> > > > Modified: sandbox/trunk/pep362/pep362.py
> > > > ==============================================================================
> > > > --- sandbox/trunk/pep362/pep362.py (original)
> > > > +++ sandbox/trunk/pep362/pep362.py Sun Feb 25 23:59:37 2007
> > > > @@ -49,27 +49,6 @@
> > > > self.has_annotation = True
> > > > self.annotation = annotation
> > > >
> > > > - def _tuple2param(self, tuple_):
> > > > - if not isinstance(tuple_, tuple):
> > > > - return str(tuple_)
> > > > - elif len(tuple_) == 1:
> > > > - return "(" + str(tuple_[0]) +",)"
> > > > - else:
> > > > - return ('(' +
> > > > - ', '.join(self._tuple2param(x) for x in tuple_) +
> > > > - ')')
> > > > -
> > > > - def __str__(self):
> > > > - """Return the string representation of the parameter as it would look
> > > > - in a function's signature."""
> > > > - if isinstance(self.name, tuple):
> > > > - result = self._tuple2param(self.name)
> > > > - else:
> > > > - result = self.name
> > > > - if self.has_default:
> > > > - result+= "=" + str(self.default_value)
> > > > - return result
> > > > -
> > > >
> > > > class Signature(object):
> > > >
> > > > @@ -92,7 +71,8 @@
> > > > keyword_only_count = func_code.co_kwonlyargcount
> > > > else:
> > > > keyword_only_count = 0
> > > > - positional = func_code.co_varnames[:pos_count]
> > > > + #positional = func_code.co_varnames[:pos_count]
> > > > + positional = argspec[0]
> > > > keyword_only = func_code.co_varnames[pos_count:keyword_only_count]
> > > > if func.func_defaults:
> > > > pos_default_count = len(func.func_defaults)
> > > > @@ -178,22 +158,6 @@
> > > > else:
> > > > return tuple(cls._list2tuple(x) for x in list_)
> > > >
> > > > - def __str__(self):
> > > > - """String representation of a signature as one might write it in source
> > > > - code."""
> > > > - result = "%s(" % self.name
> > > > - result += ", ".join(str(param) for param in self.parameters)
> > > > - if self.var_args:
> > > > - if self.parameters:
> > > > - result +=", "
> > > > - result += "*%s" % self.var_args
> > > > - if self.var_kw_args:
> > > > - if self.parameters or self.var_args:
> > > > - result += ", "
> > > > - result += "**%s" % self.var_kw_args
> > > > - result += ")"
> > > > - return result
> > > > -
> > > > def bind(self, *args, **kwargs):
> > > > """Return a dictionary mapping function arguments to their parameter
> > > > variables, if possible.
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>
>
> --
> --Guido van Rossum (home page: http://www.python.org/~guido/)
>
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