fix bug setting options programatically #498
Merged
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Previously, if you set an option in code:
options.my_option = value
this would overwrite the _Options attribute with a non _Option value. This would break subsequent retrieval of the option. This code change adds a parallel setattr to the existing getattr.
I also fixed a bug with the root type - 'str' should have been 'basesting' - since we return a _unicode() converted string - which fails when you try to set the value back again.