Remember, the `range()` function requires at least one argument. Since indexation in Python starts from `0`, you can use sequence length as the only `range()` parameter.

Remember that you need to use the `len()` function to find the length of the sequence object. For instance, we can iterate the list we used several chapters ago, but this time over indexes.

# Initial list
values = [1, [2, 3], 4, "code"]

# Initialize a for loop over indexes
for i in range(len(values)):
  print("Index:", i)
  print("Value:", values[i])
  print("----") # Delimiter

In this section, you will be introduced to the very basics of Python and to your workspace, learn some simple math operations, and print your results.

In this section, you will learn how to store numbers, text, etc. in computer memory and then be able to call them by name. Also, you will learn little manipulation with text in Python.

In this section, you will learn the next data type - boolean - and how it can help in creating programs that behave differently depending on certain conditions. 

In this section, you will continue learning different data types in Python: This time you will learn how to store different characteristics inside one variable using lists, tuples, and more interesting type dictionaries.

In this section, you will learn how to write loops in Python - things often used to iterate over a list, tuple, dictionary, or even in a future dataframe...

In the final section of our introduction course, you will learn a bit about built-in functions and then write some functions by yourself!