Python - Command Line Closes

Question

I'm having a bit of fun with python creating classes and methods and stuff but I have one problem.

Say I have this code:

class Circle:
    def __init__(self, radius):
        self.radius = radius

    def increaseR(self):
        self.radius += 1

The code itself runs perfectly fine. But when I run the .py file, it runs it through the shell (I think that's what it's called), then it closes it. While I realize that this is completely normal to happen, I was wondering how I could keep it open so someone can toy around with the program and do stuff like:

c = Circle(1)
c.radius
c.increaseR

Basically play around with the class and get output from the shell. But it closes too fast, and I don't want to have to run it from my IDE every time (where the shell stays open).

Basically I want the shell to stay open and keep taking input from the user until you literally click the red x on the shell window.

Sorry if I sound dumb, I just started Python programmming.

Thank you!

Bella

Answer 1

Use the -i option while opening your terminal. Just replace your_file.py with the file you wish to execute.

python -i your_file.py

Answer 2

you may need this:

$ python -i your_source.py

you can also use -c to excecute code as parameter like this:

$ python -c "print 3*2"
6