Внутри строки мы можем указать как фиксированный текст, так и часть текста, определяемого функцией format, который будет состоять из отдельно задаваемых участков:
print(“This cat has {0} kittens and a {1}”.format(2,”tail”))
Вместо использования номеров внутри фигурных скобок можно в них сразу задать значение переменной – a,b,c:
print(‘quantity: ({a}, {b}, {c})’.format(a=5,b=2,c=4)) Читать
To install Python on your computer, simply search Google for download python and follow the first link to www.python.org/downloads
The easiest way is to click on the bright button with the latest version of Python and then follow the installation process.
In addition to Python itself, you will probably need to install additional programs, which we will discuss next. When installing Python, remember that it is an interpretive programming language. If you write the code in notepad, it won’t work. And the code doesn’t need to be compiled like in C++. To run your code, you use either the built-in interpreter – Python 3.6.exe, or you can activate the interpreter in other text editors or programming environments.
We continue to learn programming. Let’s move on to the study of the third chapter of the book: Michael Dawson “Programming in Python”, 2014 (Michael Dawson “Python Programming for the Absolute Beginner”, 3rd Edition), where we will study if, elif, else conditional statements and while loops and learn how to generate random numbers using a module with the functions random.randint() and random.randrage().
Summary of chapter 3 with examples of programs I wrote:
Random Number Generation in Python
We load the import random module – it generates random numbers based on the built-in formula. To assign a random value to a variable, after calling the module, call one of its functions, for example,
To find out which names cannot be given to variables in Python, use the command:
import keyword
keyword.kwlist
For Python 3.6 this words are: Читать
We continue to learn the programming language. Let’s move on to chapter 4 of the book: Michael Dawson “Python Programming”, 2014 (Michael Dawson “Python Programming for the Absolute Beginner”, 3rd Edition), where we will study loops with the for () operator, introducing constants into code, slices and tuples, working with sequences on the example of strings with the operators len(), range(), in, jumble(), etc.
Summary of chapter 4 with examples of programs I wrote:
Содержание:
for
We already know loops with the while statement, and have even done a lot of tasks. Remember, there is a control variable introduced before the loop, which is then used in the condition, which in turn is tested for truth every round of the loop. So with the for loop, things are a little different. Читать
When running the code, a syntax error occurs – inconsistent use of tabs and spaces in indentation. What does this mean and how to solve this problem? The fact is that python enforces uniformity in the use of spaces, which show the indentation of parts of the code. If you use tab, it can get tricky because some of the tabs can be misinterpreted as spaces. As a result, you see a syntax error that can be difficult to fix. Читать