Dictionary won't update value from a variable

Question

My code looks like this:

firstValue = "First Value Key"
secondValue = "Second Value Key"
thirdValue = "Third Value Key"

Dictionary = {"0":firstValue,
              "1":secondValue,
              "2":thirdValue}

print(Dictionary["0"])

firstValue = "New Value"

print(Dictionary["0"])

The output is the following:

First Value Key
First Value Key

And I want the output to look like this:

First Value Key
New Value

What am I missing?

Answer 1

You're only changing the variable that you already passed into the dictionary, update the value directly to it:

Dictionary['0'] = "New Value"

Answer 2

You need to assign the value of the variable to the dictionary value:

firstValue = "First Value Key"
secondValue = "Second Value Key"
thirdValue = "Third Value Key"

Dictionary = {"0":firstValue,
              "1":secondValue,
              "2":thirdValue}

print(Dictionary["0"])

firstValue = "New Value"
Dictionary["0"] = firstValue
print(Dictionary["0"])