Типи даних у Python

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Типи даних у Python

Типи даних у Python

1. Знайомство з числами в Python

Understanding Numerical Data Types in Python Mutable or Immutable?Mastering Integer Numbers in Python Fundamentals of Basic Math Operations in Python Deep Dive into Advanced Math Techniques in Python Challenge: Time Calculation in Python How to Define a Type

2. Істина чи брехня?

Introduction to Boolean Data Type Challenge: Practice with Logical Statements Python Logical Operators Challenge: Boosting Logical Skills Challenge: The Not Statement Challenge: Logical Statements Priorities

3. Рядки

Print Your String Quotation Marks String Indexing in Python Slice the Word Negative Indexation Slice the Phrase Slicing Task How to Find the String Length Get the Index of the Symbol Find the Word Index Challenge: Slicing with Index Function Is String Mutable?Merge Strings

4. Поєднання всіх тем разом

Convert Types Useful Converting Converting: float()Converting: bool()Converting: str()Math in Strings Compare Strings

Slicing Task

Slicing can be enhanced with a step argument, which allows you to extract characters at specific intervals.

This is useful when you want to select every second character, skip letters, or extract patterns from structured data like invoice numbers, transaction codes, or reports.

python

start: the index where slicing begins (inclusive)
end: the index where slicing ends (exclusive)
step: the interval (e.g., 2 means every second character)

Example


              123
            
code = "TXN-2024-INV-0007"
sliced = code[0:13:5]
print(sliced)  # Output: T2I

We start at index 0
End at index 13 (exclusive)
Use a step of 5, which means: take every fifth character

Characters at indexes 0, 5, and 10 are 'T', '2', and 'I', so the output is 'T2I'.

This kind of slicing could be used to extract initials or control codes from structured strings in financial or document systems.

Завдання

Swipe to start coding

In an accounting system, filenames for financial reports are generated automatically. Each filename includes a prefix, the report type, and the year.

Your task is to use slicing with a step to extract the 1st and 3rd digits of the year (in this case, 2 and 2) from the filename. This result will serve as a simple year control code.

Рішення

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 3. Розділ 7

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Slicing Task

Slicing can be enhanced with a step argument, which allows you to extract characters at specific intervals.

This is useful when you want to select every second character, skip letters, or extract patterns from structured data like invoice numbers, transaction codes, or reports.

python

start: the index where slicing begins (inclusive)
end: the index where slicing ends (exclusive)
step: the interval (e.g., 2 means every second character)

Example


              123
            
code = "TXN-2024-INV-0007"
sliced = code[0:13:5]
print(sliced)  # Output: T2I

We start at index 0
End at index 13 (exclusive)
Use a step of 5, which means: take every fifth character

Characters at indexes 0, 5, and 10 are 'T', '2', and 'I', so the output is 'T2I'.

This kind of slicing could be used to extract initials or control codes from structured strings in financial or document systems.

Завдання

Swipe to start coding

In an accounting system, filenames for financial reports are generated automatically. Each filename includes a prefix, the report type, and the year.

Your task is to use slicing with a step to extract the 1st and 3rd digits of the year (in this case, 2 and 2) from the filename. This result will serve as a simple year control code.

Рішення

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 3. Розділ 7

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

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