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Python Strings

Python is a computer language that can be used for many things like creating websites, studying data, and building smart machines. Strings are an important way of storing and working with text in Python. This piece of writing will cover the basics of strings, including their definition, how they can be made, and a few typical actions you can do with them. What are Strings in Python? Python considers a string as a series of characters that signify text-based data. Such a string is composed of a group of characters that are enclosed either in single quotes ('') or double quotes (""). Strings can contain letters, numbers, symbols, and spaces, and can be of any length. For instance, "Hello, World!" is a valid string, as are 'Python is awesome!' and "12345". The choice of quotes is yours to make, as long as you're consistent. In Python, if a string begins with a single quote, it must be terminated with a single quote. Similarly, if a string ...

Python Data Types

Python is a dynamically typed language, which means that the data types of variables can change during the execution of the program. Python supports several built-in data types, which can be used to represent different kinds of values. Below are some of the frequently used data types in Python: 1. Numeric Data Types: Python has support for various numeric data types, such as integers, floating-point numbers, and complex numbers. Integers are whole numbers, whereas floating-point numbers are those that contain a decimal point. On the other hand, complex numbers consist of both a real and an imaginary part. Here are some examples: ``` x = 10         # integer y = 3.14       # floating-point number z = 2 + 3j     # complex number ``` 2. String Data Type: Python uses strings to represent text data, which can be encompassed within single quotes ('...') or double quotes ("..."). Here are some examples: ``` a = 'Hello, World!'  ...

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Legal drinking age around the world

From hard liquor to hard seltzer, alcoholic beverages are an almost ubiquitous part of many modern cultures: wine with dinner, beer with friends on the weekend, celebratory champagne toasts, etc. However, because alcohol is a drug that can significantly affect a person's judgment and physical abilities, many countries age-restrict the consumption of alcoholic beverages. Effects of alcohol on the body In chemical terms, alcohol is an organic compound produced when grains, vegetables or fruits are allowed to ferment. Medically, alcohol is classified as a depressant (as opposed to stimulants like caffeine or hallucinogens like psilocybin) with a wide range of physiological effects. Most of these effects involve a reduction or inhibition of physical activity. For example, alcohol inhibits physical motor function and slows reaction time. Consequently, the more one drinks, the slower and more sluggish one becomes. Similarly, alcohol also inhibits the brain's communication pathways. T...

Python - Output Variables

Output variables in Python refers to the process of displaying or printing the value of a variable to the console or output stream. This is a crucial aspect of programming as it allows developers to test and debug their code and also helps users to interact with the program. In Python, we can output variables to the console using the print() function. The syntax for using the print() function is straightforward: ``` variable_name = "Hello, World!" print(variable_name) ``` In this example, we have created a variable called `variable_name` and assigned it the value "Hello, World!". We then use the print() function to output the value of `variable_name` to the console. We can also output multiple variables using the print() function by separating them with commas. For example: ``` name = "John" age = 25 print("My name is", name, "and I am", age, "years old.") ``` In this example, we have created two variables called `name` and `a...

Python - Global Variables

In Python, a global variable is a variable that is declared outside of any function and can be accessed by any function in the same module or file. Global variables can be useful for storing values that are needed by multiple functions within the same module or file. In Python, declaring a variable outside of any function is all that's needed to create a global variable: ``` # defining a global variable my_global_var = "Hello World" # Creating a function that utilizes the global variable: def print_global_var():     print(my_global_var) # calling the function print_global_var()  # output: "Hello World" ``` In the example above, `my_global_var` is a global variable that can be accessed by the function `print_global_var()` because it is defined outside of any function. It is also possible to modify the value of a global variable from within a function using the `global` keyword: ``` # defining a global variable my_global_var = "Hello World" # defining a ...