ANN: generator_tools-0.1 released

[Kay Schluehr]

On Oct 9, 7:17 pm, Steven Bethard <steven.beth... at gmail.com> wrote:
> Kay Schluehr wrote:
> > Originally I came up with the idea of a pure Python implementation for
> > copyable generators as an ActiveState Python Cookbook recipe. Too bad,
> > it was badly broken as Klaus Müller from the SimPy project pointed
> > out. Two weeks and lots of tests later I got finally a running version
> > that works not only in the very most simple use cases. As the code
> > size increased it turned out to not really fit anymore into the
> > "recipe" category and I created a package called "generator_tools".
>
> > generator_tools-0.1 is available for both Python 2.5 and Python 3.0
> > (!)
> [snip]
> >>>> pickler = GeneratorPickler("test.pkl")
> >>>> pickler.pickle_generator(g_gen)
> >>>> k_gen = pickler.unpickle_generator()
> >>>> list(g_gen) == list(k_gen)
> > True
>
> This seems like an odd syntax for pickling. Does the package support the
> normal pickle machinery?  That is, does it register the appropriate
> methods with the copy_reg module?
>
> STeVe

The picklegenerators module defines two functions: pickle_generator
that wraps the generator into a GeneratorSnapshot object and
unpickle_generator that calls copy_generator on the unpickled
GeneratorSnapshot. The only reason I also created the GeneratorPickler
class was some simplification of testing. So I didn't invest time yet
keeping the API in line with Pythons normal pickle machinery but will
do so as the project advances i.e. in the next release.

Kay