I changed the input function to get the value of

the radius from the user. Then I established the variable for pi as 3.141592653.
Then I established a variable for area. It became pi * radius * radius.
Finally Print area prompted the program to calculate.

The best way I can describe it is that a vlue is the thing and the name is what we call it.
Therefore, a name does not necessarily need to relate to the thing itself, rather it is simply what
we refer to it as. One example of distinguishing the name from the value is with parents. While
their names may be something like Susan and Jim, the value assigned to them by us (their children)
is mom and dad.

Variables are useful in programming because it makes things more adaptable. When complex
data or code is housed in variables, it becomes flexible in that one does not have to
complete extensive work every time it is called upon.

circle_area.py

@@ -3,4 +3,7 @@
 # By MWC Contributors
 
 print("This program will calculate the area of a circle.")
-radius = float(input("What is the circle's radius? "))
+radius = float(input("What is the circle's radius?" ))
+pi = 3.141592653
+area=pi * radius * radius
+print (area)

greetings.py

@@ -2,6 +2,6 @@
 # ------------
 # By MWC contributors
 
-my_name ="Chris"
-greeting = "Hello, " + my_name
+my_name = input("What is your name? ")
+greeting = "Hello, " + my_name 
 print(greeting)

poetry.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
+package = []
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.10"
+content-hash = "53f2eabc9c26446fbcc00d348c47878e118afc2054778c3c803a0a8028af27d9"