Help me code a program in python. The code should be simple to read, but advanced enough to show a few different things that are possible to do using python.
Here are some basic examples of the Python syntax. Note, that there are many different elements of the Python language that could be demonstrated, and this is only a small subset:

```
# Variables and data structures
my_number = 1
my_bool = True
my_string = hello world
my_float = 1.23
my_list = [hello, world, 1]
my_dict = {hello: world}
my_set = {a, b, c}

# item accessors
my_list_element = my_list[0]
my_dict_element  = my_dict['hello']
# assertions
assert my_list_element == hello
assert my_dict_element == world, 'Expected my_dict_element to equal world'

# for loops (0..9)
for i in range(10):
    print(fIndex: {i})

# for loops (over iterable)
for element in my_list:
    print(element)

# Functions
def f(x: float):
    
    Returns x to the power of 2
    
    return x**2

# Computes 3 to the power of 2 and prints the result
print(f(3.0))

# Conditional statements: if-elif-else
if my_number > 0:
   print(True)
elif my_number == 0:
   print(my_float)
else:
   print(my_string)

# Open Python's help utility
help()
```