report bug in FunctionSlot – function slots module "pyevolve version 0.6"

[Saeed Soltani Moghadam]

It seems there is a bug in "FunctionSlot.FunctionSlot.add(obj, weight)". Suppose that we want to use two selectors with different weights as follows:

ga.selector.set(Selectors.GRankSelector,0.3)

ga.selector.add(Selectors.GRouletteWheel,.7)

here is the output:

>>> ga.printStats
<bound method GSimpleGA.printStats of - GSimpleGA
 GP Mode: False
 Population Size: 80
 Generations: 1000
 Current Generation: 799
 Mutation Rate: 0.04
 Crossover Rate: 0.90
 Minimax Type: Minimize
 Elitism: True
 Elitism Replacement: 1
 DB Adapter: DBSQLite DB Adapter [File='pyevolve.db', identify='ackley']
 Slot [Selector] (Count: 2)
 Name: GRankSelector - Weight: 0.50
 Doc:  The Rank Selector - This selector will pick the best individual of
   the population every time.
   
 Name: GRouletteWheel - Weight: 0.30
 Doc:  The Roulette Wheel selector
 Slot [Generation Step Callback] (Count: 0)
 No function
 Slot [Termination Criteria] (Count: 1)
 Name: RawScoreCriteria - Weight: 0.50
 Doc:  Terminate the evolution using the **bestrawscore** and **rounddecimal**
   parameter obtained from the individual


   Example:
      >>> genome.setParams(bestrawscore=0.00, rounddecimal=2)
      (...)
      >>> ga_engine.terminationCriteria.set(GSimpleGA.RawScoreCriteria)

 As you can see, the first Selector has a weight of 0.5 and the second one has 0.3! So, if we look at:

>>> ga.selector.funcWeights
[0.5, 0.3, 0.7]

We can see the "funcWeights" has three elements and this may causes the problem. if we modify this list according to our desire weights, it will work fine. Please let me know if im right. 

[Christian S. Perone]

Hi Saeed, this was a known regression of the 0.6rc1, please install the master version: 

pip install https://github.com/perone/Pyevolve/archive/master.zip

Best,

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[Saeed Soltani Moghadam]

Thanks, It seems i used a buggy version, because there were other issues which are now fixed! Great!

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