Luca's Notes

Python Reference

May 14, 20252 min read

Variables

Integers

i = 1
x = 2
hello = 3
one_more = 13
 
print(i)
print(x)
print(hello)
print(one_more)
 
ix = i*x
algebra = 3*i
i = i + 1
 
print(ix)
print(algebra)
print(i)

Strings

a_string = "hello"
another_string = "good bye 13 * & ())"
 
print(a_string)
print(another_string)
 
b_string = a_string + another_string
 
print(b_string)

Floats

x_dist = 13.5
y_dist = 11.1
 
print(x_dist)
print(y_dist)
 
import math
 
real_dist = math.sqrt(x_dist*x_dist + y_dist*y_dist)
 
print(real_dist)

Booleans

t = True
f = False
 
print(t)
print(f)
 
ore = t or f
 
print(ore)
 
end = t and f
 
print(end)
 
net = not t
 
print(net)

Control

Conditionals

Less Than & Greater Than & Equal To

i = 10
x = 15.5
 
print(i < x)
 
print(i > x)
 
print(i < i)
 
print(i <= i)
 
print(i == x)
 
print(i == i)

Boolean AND

i = 10
x = 15.5
 
t = (i < x)
f = (i > x)
 
print(t)
print(f)
 
print(t and f)
print(t and t)
print(f and f)

Boolean OR

i = 10
x = 15.5
 
t = (i < x)
f = (i > x)
 
print(t)
print(f)
 
print(t or f)
print(t or t)
print(f or f)

If

i = 10
x = 15.5
 
if(i<13):
	print("Yes, I is smol")
 
if(i<10 or x>i):
	print("Boolean logic can be used in if statements")

Loops

While

i = 0
count = 7
 
while(i < 7):
	i = i + 1
	print("This is the ", i, " Time I've run")

For

for c in "hello":
	print(c)
 
for c in range(0,5):
	print(c)

Nesting Loops

for c in "hello I like Ice Cream":
	print(c)
	i = 0
	while(i<3): 
		i = i + 1 
		print("This is the ", i, " Time I've run for the letter ", c)

Grouping Code

Functions

def my_function(a_argument, b_argument):
	print(a_argument * b_argument)
 
my_function(12.5, 15)
my_function(9, 3)

Classes

class MyClass:
	def __init__(self):
		self.my_var = 1
		print("New Object Created")
	def hello_world(self):
		print("hello world")
		print(self.my_var)
 
my_object = MyClass()
my_object.hello_world()

Graph View