Test your knowledge: Python Variables and Values

Review

1. How do you create an ordinary variable in Python?

   Assigning a value to a name creates the binding, right there, on the spot. That is the whole ceremony, which is why the first example in the lesson was already a working program.
2. After learners = 1 and learners += 1, what is learners?

   += adds to the current value and rebinds the name to the result, so learners becomes 2. The example printed its greeting and its count on the strength of that one update.
3. What does assignment actually create, in the lesson's language?

   Assignment creates a binding, a name referring to a value, not a box holding a copy. The distinction stays quiet until lists arrive later in the path, where it stops being quiet.
4. What does f"Hello from {language}" produce when language = "Python"?

   An f-string interpolates the expression inside the braces, so the value of language appears in the text. It was the one formatting tool the whole example needed.
5. A name is assigned twice: language = "Python" then language = "Foxipa". What does the name refer to now?

   Rebinding simply points the name somewhere else, and the old value is gone as far as the name is concerned. Programs are read top to bottom, and the last write is the truth.