Python 3 latest code crumbs

When we import a module, its name (stored in the variable __name__) is equal to the module name. When a script is executed, its name is always set to the__main__ string. Hence, if we check for this name with `if...

You can import a Python module by using the import keyword. Module imports are often placed at the top of a script, but they don't have to be. E.g., sometimes you want to dynamically decide if you need to import...

Some built-in Python dictionary methods return a view object, offering a window on your dictionary's keys and values. There's an important concept you need to understand: values in a view object change as the content of the dictionary changes. In...

A compelling Python feature is the ability to provide default values for the parameters. Because our parameters have a default value, you don't have to fill them in. If you don't, the default is used. If you do, you override...

While the for-loop in Python is a bit hard to understand, the while loop is actually much simpler! In this example, we see an expression that follows the while statement: i <= 4. As long as this expression evaluates to...

A Python list can contain zero or more objects. It's a frequently used data type in Python programming. In other programming languages, lists are often called arrays. Python does not have arrays, though, only lists. We can loop, or iterate,...