Python for beginners: Learn Coding, Programming, Data analysis and Algorithmic thinking with the latest Python Crash Course. A starter guide with tips and tricks for the apprentice programmer. by Wizner William

Author:Wizner, William [Wizner, William]
Language: eng
Format: epub, pdf
Published: 2020-07-20T16:00:00+00:00

Give this a shot before you look below for an answer to this exercise prompt.

If you’ve given this a shot, your answer might look something like this:

favorite_food = input ("What's your favorite food? :")

favorite_animal = input ("What about your favorite animal? :")

favorite_movie = input ("What's the best movie? :")

print ("Favorite food is: " + favorite_food + "\n" +

"Favorite animal is: " + favorite_animal + "\n" +

"Favorite movies is: " + favorite_movie)

We’ve covered a lot of ground in the first quarter of this book. We’ll begin covering some more complex topics and concepts. However, before we move on, let’s be sure that we’ve got the basics down. You won’t learn the new concepts unless you are familiar with what we’ve covered so far, so for that reason, let's do a quick review of what we’ve learned so far:

Variables - Variables are representations of values. They contain the value and allow the value to be manipulated without having to write it out every time. Variables must contain only letters, numbers, or underscores. In addition, the first character in a variable cannot be a number, and the variable name must not be one of Python’s reserved keywords.

Operators - Operators are symbols which are used to manipulate data. The assignment operator (=) is used to store values in variables. Other operators in Python include: the addition operator (+), the subtraction operator (-), the multiplication operator (*), the division operator (/), the floor division operator (//), the modulus operator (%), and the exponent operator (**). The mathematical operators can be combined with the assignment operator. (Ex. +=, -=, *=).

Strings - Strings are text data, declared by wrapping text in single or double-quotes. There are two methods of formatting strings; with the modulus operator or the. format () command. The “s,” “d,” and “f” modifiers are used to specify the placement of strings, integers, and floats.

Integers - Integers are whole numbers, numbers that possess no decimal points or fractions. Integers can be stored in variables simply by using the assignment operator.

Floats - Floats are numbers that possess decimal parts. The method of creating a float in Python is the same as declaring an integer, just choose a name for the variable and then use the assignment operator.

Type Casting - Type casting allows you to convert one data type to another if the conversion is feasible (non-numerical strings cannot be converted into integers or floats). You can use the following functions to convert data types: int (), float (), and str ().

Lists - Lists are just collections of data, and they can be declared with brackets and commas separating the values within the brackets. Empty lists can also be created. List items can be accessed by specifying the position of the desired item. The append () function is used to add an item to a list, while the del command and remove () function can be used to remove items from a list.

List Slicing - List slicing is a method of selecting values from a list. The item at the first index is included, but the item at the second index isn’t.

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