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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _ondim(self, dimension, valuestring):
 """Converts valuestring to int and assigns result to self.dim If there is an error (such as an empty valuestring) or if the value is < 1, the value 1 is assigned to self.dim Parameters dimension: int \tDimension that is to be updated. Must be in [1:4] valuestring: string \t A string that can be converted to an int """


        try:
            self.dimensions[dimension] = int(valuestring)
        except ValueError:
            self.dimensions[dimension] = 1
            self.textctrls[dimension].SetValue(str(1))

        if self.dimensions[dimension] < 1:
            self.dimensions[dimension] = 1
            self.textctrls[dimension].SetValue(str(1))