python-basics

python-basics.py

# The hash sign tells Python to ignore the rest of this line.
# This way, we can write 'comments' that tell us stuff about code,
# but do nothing to the program.
 
# Print some stuff to the screen, on separate lines.
print(5)
print("hello")
print(2.5)
 
# Store some values with a name. Let's store '5' with the name 'x'.
x = 5
print(x) 	# same as writing print(5)
 
# x is called a 'variable', since its value can vary.
 
x = 5 + 1	# x = 6 now
x = x + 1 	# x = 7 now
 
# Make a choice here.
if x < 5:
	print("x is less than 5!")
else:
	print("Guess not, idiot.")	# x >= 5, so this gets printed
 
# Print numbers from 0 to 5, noninclusive.
for i in range(5):
	print(i)
 
# Print something 'x' times.
for i in range(x):
	print("Printing again and again!")
 
# Name a chunk of code, so we can reuse it alot.
# Do this with the 'define', or 'def', keyword.
# This named chunk of code is called a 'function'.
def some_code():
	print("A thing")
 
some_code() 	# Prints "A thing".
some_code() 	# And again.