Re: Get List of Classes
>> I couldn't find any nice method for determining if a >> variable referenced a module other than checking to see if >> that item had both a "__file__" and a "__name__" attribute. > > Why not : > > In [8]: import types, sys > > In [9]: isinstance(sys, types.ModuleType) > Out[9]: True Yes...this is the best way to do it. I hadn't explored (or even noticed, before your reply) the "types" module, which seems to have a large toolset for doing exactly what I wanted to. Thanks! A good programming language has users asking "how did I miss that?" rather than "why can't I make it do what I want?". Yet another feather in Python's cap. -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: Get List of Classes
Le lundi 26 juin 2006 17:25, Tim Chase a écrit : > I couldn't find any nice > method for determining if a variable referenced a module other > than checking to see if that item had both a "__file__" and a > "__name__" attribute. Why not : In [8]: import types, sys In [9]: isinstance(sys, types.ModuleType) Out[9]: True ? Seems rather explicit IMO. -- _ Maric Michaud _ Aristote - www.aristote.info 3 place des tapis 69004 Lyon Tel: +33 426 880 097 -- http://mail.python.org/mailman/listinfo/python-list
Re: Get List of Classes
Wow, more than I had asked for, thank you Tim!
I ended up doing this:
def isClass(object):
if 'classobj' in str(type(object)):
return 1
elif "'type'" in str(type(object)):
return 1
else:
return 0
def listClasses():
classes = []
for eachobj in globals().keys():
if isClass(globals()[eachobj]):
classes.append(globals()[eachobj])
print eachobj
return classes
Tim Chase wrote:
> > Is there a method or attribute I can use to get a list of
> > classes defined or in-use within my python program? I tried
> > using pyclbr and readmodule but for reason that is dogslow.
>
> Well, given that so much in python is considered a class, the
> somewhat crude code below walks an object/module and emits
> details regarding what's going on. I couldn't find any nice
> method for determining if a variable referenced a module other
> than checking to see if that item had both a "__file__" and a
> "__name__" attribute. Likewise, the check for whether something
> is an object is a bit crude.
>
>
> >>> def inspect(thing, name = '', indent=0):
> ... if hasattr(thing, "__file__") and hasattr(thing, "__name__"):
> ... #assume it's a module
> ... print "%sModule %s" % ("\t" * indent, thing.__name__)
> ... for subthing in dir(thing):
> ... objname = ".".join([name,
> subthing]).lstrip(".")
> ... inspect(eval(objname),
> ... objname, indent+1)
> ... elif isinstance(thing, object):
> ... print "%s%s is an object" % ("\t" * indent, name)
> ...
> >>> import m1
> >>> # m1 is a junk module that references module "m2" and has
> >>> # some junk classes in it
> >>> inspect(m1, "m1")
> Module m1
> m1.M1Class is an object
> m1.M1ObjectClass is an object
> m1.__builtins__ is an object
> m1.__doc__ is an object
> m1.__file__ is an object
> m1.__name__ is an object
> Module m2
> m1.m2.M2Class is an object
> m1.m2.M2ObjectClass is an object
> m1.m2.__builtins__ is an object
> m1.m2.__doc__ is an object
> m1.m2.__file__ is an object
> m1.m2.__name__ is an object
>
>
>
> You could also filter out builtin object properties by wrapping
> that last print statement in something like
>
> if not name.startswith("_"): print ...
>
> which might cut down on some of the noise.
>
> Just a few ideas.
>
> -tkc
--
http://mail.python.org/mailman/listinfo/python-list
Re: Get List of Classes
> Is there a method or attribute I can use to get a list of
> classes defined or in-use within my python program? I tried
> using pyclbr and readmodule but for reason that is dogslow.
Well, given that so much in python is considered a class, the
somewhat crude code below walks an object/module and emits
details regarding what's going on. I couldn't find any nice
method for determining if a variable referenced a module other
than checking to see if that item had both a "__file__" and a
"__name__" attribute. Likewise, the check for whether something
is an object is a bit crude.
>>> def inspect(thing, name = '', indent=0):
... if hasattr(thing, "__file__") and hasattr(thing, "__name__"):
... #assume it's a module
... print "%sModule %s" % ("\t" * indent, thing.__name__)
... for subthing in dir(thing):
... objname = ".".join([name,
subthing]).lstrip(".")
... inspect(eval(objname),
... objname, indent+1)
... elif isinstance(thing, object):
... print "%s%s is an object" % ("\t" * indent, name)
...
>>> import m1
>>> # m1 is a junk module that references module "m2" and has
>>> # some junk classes in it
>>> inspect(m1, "m1")
Module m1
m1.M1Class is an object
m1.M1ObjectClass is an object
m1.__builtins__ is an object
m1.__doc__ is an object
m1.__file__ is an object
m1.__name__ is an object
Module m2
m1.m2.M2Class is an object
m1.m2.M2ObjectClass is an object
m1.m2.__builtins__ is an object
m1.m2.__doc__ is an object
m1.m2.__file__ is an object
m1.m2.__name__ is an object
You could also filter out builtin object properties by wrapping
that last print statement in something like
if not name.startswith("_"): print ...
which might cut down on some of the noise.
Just a few ideas.
-tkc
--
http://mail.python.org/mailman/listinfo/python-list
Get List of Classes
Is there a method or attribute I can use to get a list of classes defined or in-use within my python program? I tried using pyclbr and readmodule but for reason that is dogslow. Thanks in advance DigiO -- http://mail.python.org/mailman/listinfo/python-list
