human
I am working on the file "Python/Chapter-06/Calculator-Frame.ipynb".
The first task is:
The class Calculator supports three member variables:
  - the token stack mTokens,
  - the operator stack mOperators,
  - the argument stack mArguments,
  - the floating point number mValue, which is the current value of x.
The constructor takes a list of tokens TL and initializes the token stack with these 
tokens.
Can you write Python code for it?

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What is a the Python code you requested?
assistant
#Here is the Python code you requested.

class Calculator:
    def __init__(self, TL, x):
        self.mTokens     = createStack(TL)
        self.mOperators  = Stack()
        self.mArguments  = Stack()
        self.mValue      = x