Numbers

# Integers (int):
age = 30
count = -5

# Floats (float):
price = 19.99
temperature = -3.5

# Complex (complex):
z = 3 + 4j

# Check type:
print(type(age))  # 
print(type(price))  #

Strings

# Single or double quotes:
name1 = 'Alice'
name2 = "Bob"

# Multiline strings:
text = """This is
a multiline
string"""

# Check type:
print(type(name1))  #

Booleans

# True or False:
is_active = True
is_complete = False

# Result of comparisons:
result = 5 > 3  # True
print(type(result))  #

Type conversion

# Convert between types:
age_str = "30"
age_int = int(age_str)  # 30

price_int = 19
price_float = float(price_int)  # 19.0

number = 42
number_str = str(number)  # "42"

# Check if conversion possible:
print(bool(1))  # True
print(bool(0))  # False
print(bool(""))  # False
print(bool("hello"))  # True

None

None represents "no value":

result = None
print(type(result))  # 

# Common use:
def find_item(items, target):
    for item in items:
        if item == target:
            return item
    return None  # Not found