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POUnable to call a function by using a string
 

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  1. POUnable to call a function by using a string
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    <p>I am trying to call a function in a class based on the string I passed in.</p> <p>I tried following the steps at this link: <a href="https://stackoverflow.com/questions/3061/calling-a-function-from-a-string-with-the-functions-name-in-python">Calling a function of a module from a string with the function&#39;s name in Python</a></p> <p>Here is my code:</p> <pre><code>methodNameString = "add" + typeOfShip methodToCall = getattr(listOfPlayerFleets[currentPlayer], methodNameString) listOfPlayerFleets[currentPlayer].methodToCall(num) </code></pre> <p>I get the error:</p> <pre><code>AttributeError:fleet instance has no attribute 'methodToCall' </code></pre> <p>Any ideas as to why methodToCall isn't being assigned my correct method name?</p> <p>I also tried</p> <pre><code>methodToCall = getattr(fleet, methodToCall) </code></pre> <p>then I get the message:</p> <pre><code>AttributeError: 'module' object has no attribute 'addCruiser' </code></pre> <p>Its as if the getattr can't find my methods in my class.</p> <p>the listOfPlayerFleets is a list of fleet objects</p> <p>Here is what the fleet object looks like you can see the methods do really exist.</p> <pre><code>class fleet: """ Stores Fleet Numbers, Represents a fleet """ ships = {'fighters':0, 'cruisers':0, 'capitols':0} attacking = False defending = False def __init__(self): self.ships = {'fighters':0, 'cruisers':0, 'capitols':0} self.attacking = False self.defending = False #add a Fighter def addFighter(self, numOfFighters): self.ships['fighters'] = numOfFighters #add a Cruiser def addCruiser(self, numOfCruisers): self.ships['cruisers'] = numOfCruisers #add a Capitol Ship def addCapitol(self, numOfCapitols): self.ships['capitols'] = numOfCapitols </code></pre>
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    1. COJust so you know, your addShip function actually replace the number of ship, it do not add them. You might want rename it to setShip or something.
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      1. USPhilippe Lavoie
 

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