[Python-Dev] Those import related syntax errors again...

Mark Hammond MarkH@ActiveState.com
Thu, 22 Feb 2001 13:02:28 +1100


> I don't understand.  Methods do have a function declaration:
>   class C:
>       def meth(self):
>           pass
> Or am I misunderstanding?

The problem is I have a class object, and the source-code for the method
body as a string, generated at runtime based on runtime info from the
reflection capabilities of the system we are interfacing to.  The simplest
example is for method code of "return None".

I dont know how to get a code object for this snippet so I can use the new
module to get a new method object.  Attempting to compile this string gives
a syntax error.  There was some discussion a few years ago that adding
"function" as a "compile type" may be an option, but I never progressed it.

So my solution is to create a larger string that includes the method
declaration, like:

"""def foo(self):
      return None

exec that, get the function object out of the exec'd namespace and inject it
into the class.