def applykwargs(kwargs,key,classobject):
        """kwargs is a dictionary of the form: {'arg1':val1,....}
        key is a string for the desired key to (potentially) find in kwargs, and update in classobject"""

        try:
                kwargsvalue = kwargs[key] # if key exists in kwargs, kwargsvalue will be set to it
                setattr(classobject,key,kwargsvalue) # set the appropriate value in classobject
        except:
                # key does not exist in kwargs
                pass

# For you though, looping is better
# say you call thisFunction(linear=True,title="awesomeness")
# and you make your class have:
# to set all your vars, you want to do...well first of all, from the function call, we have
kwargs={'linear' : True, 'title' : "awesomeness"}
# so do this:

class myClass:
        linear = False
        title = ''
        legLoc = 2

for key, value in kwargs.iteritems(): #the iteritems let's you pick each entry one at a time, setting both the key and value
        # Set correct var in your class
        setattr(myClass,key,value)
# That's it! Now...

print myClass.linear # will be True
print myClass.title # will be "awesomeness"
print myClass.legLoc # will *still* be 2