Forgive me if I mangle any terminology here, but please correct me if
I do...
I have an object which acts exactly like a string as long as I stay in
Python land. However, I am using the object in Softimage|XSI, a 3D
application on Windows. I'm getting variant erros when trying to use
my instances as I would a string.
XSI was created while (briefly) owned by Microsoft, so knowledge of
COM with excel, or anything else, should be applicable I should think.
I should also say I am a COM novice and still learning the depths of
Python.
Here is an example...
class StrLike(object):
def __init__(self, s): self.__data = s
def __repr__(self): return repr(self.__data)
def __cmp__(self, string): return cmp(self.__data, string)
def __contains__(self, char): return char in self.__data
__data = ""
def __Set(self, value): self.__data = value
def __Get(self): return self.__data
data = property(fget = __Get,
fset = __Set,
fdel = None,
doc = "string-like example")
>>>s = StrLike("test")
>>>s
'test'
>>>if s == "test": print "cmp works"
cmp works
Now if I try to pass this as I would a string, roughly like so...
>>>s = StrLike("test")
>>>Application.AnObject.attribute = "test" # works fine
>>>Application.AnObject.attribute = s
ERROR : Traceback (most recent call last):
File "<Script Block >", line 18, in <module>
XSI.Selection[0].name = s
File "C:\Python25\Lib\site-packages\win32com\client\dynamic.py",
line 544, in __setattr__
self._oleobj_.Invoke(entry.dispid, 0, invoke_type, 0, value)
TypeError: Objects of type 'StrLike' can not be converted to a COM
VARIANT
Inheriting the str type doesn't raise any errors, but it's immutible
so it won't work. The attribute I am trying to set in XSI only takes a
string. So is it possible to make a string like object work like a
string in this scenario? Is there some built-in method I am missing or
some win32com.client trick? Help?
Thanks for reading,
- Rafe
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