Python: Hello World

We’re going to start with Chapter 1 of A Smarter Way.

1. Open a Linux terminal.

Then run the command:

python

2. Simple Print Output: “Hello World”

print("Hello, World!")

Older versions of Python (most often the classic 2.7) can use slightly different syntax:

print "Hello, World!"

Note that in the first example, there are no spaces. This is a stylistic thing, which is a very big deal in Python. We’ll look at this more closely when we look at PEP 8.

Exercises

Go to http://www.asmarterwaytolearn.com/python/1.html and review the exercises.

Go to http://introtopython.org/hello_world.html and run the examples.

  1. Begin a new script file in nano.
  2. Name it examples.py.
  3. Make it print out one line of text: “Welcome to the Examples”.