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Python Strings Format Posted: May 25, 2023 @ 6:45 am |
Python Strings Format – Definition and UsageUsing curly brackets, we define the placeholder: {}. In the Placeholder section below, you can learn more about the placeholders. Strings and numbers cannot be combined like this in Python Variables: What Is The Format Of a String In Python?When we talk about Python strings format then in Python, a string is a sequence of characters enclosed in either single quotes (‘ ‘) or double quotes (” “). The choice between single or double quotes is up to the programmer, and both are used interchangeably. Here are a few examples of string literals in Python: name = ‘John’ message = “Hello, world!” sentence = “I’m learning Python.” Python also supports triple quotes (”’ ”’) or (“”” “””) to represent multiline strings. Triple quotes allow you to include line breaks and preserve the formatting of the text. Here’s an example: paragraph = ”’This is a multiline string. It spans multiple lines and preserves the line breaks and formatting.”’ In addition to the basic string literals, Python provides various string manipulation methods and features that allow you to work with strings efficiently. What Is .2f Python Format?In Python, the .2f format specifier is used to format floating-point numbers as strings with two decimal places. This format specifier is part of the Python strings format syntax in Python. When using the .2f format specifier, the number will be rounded to two decimal places and displayed with two digits after the decimal point. If the number has fewer than two decimal places, it will be padded with zeros. Here’s an example that demonstrates the usage of the .2f format specifier: number = 3.14159 formatted_number = “{:.2f}”.format(number) print(formatted_number) Output: 3.14 In this example, the variable number contains the value 3.14159. By applying the .2f format specifier within the format() method and using the “{:.2f}” format string, the number is formatted to have two decimal places. The resulting formatted number is then printed, which outputs 3.14. You can also achieve the same result using f-strings, which is a more concise and preferred way of string formatting in Python 3.6 and above: number = 3.14159 formatted_number = f”{number:.2f}” print(formatted_number) The output will be the same as before: 3.14. What Is %d In String Format?In Python, the %d format specifier is used to format integers as strings within the context of the old-style string formatting method. It allows you to insert integer values into a string when it comes to Python strings format. Here’s an example that demonstrates the usage of %d in string formatting: age = 25 message = “I am %d years old.” % age print(message) Output: I am 25 years old. In this example, the integer value age is inserted into the string using %d. The % operator is used to combine the format string with the value to be formatted. The resulting string is then printed. Note that the %d format specifier only works with integers. If you try to use it with a non-integer value, you will encounter a TypeError. It’s worth mentioning that the old-style string formatting method using % is considered legacy and has been replaced by more modern string formatting options, such as the .format() method or f-strings. These newer methods provide more flexibility and readability. Here’s an equivalent example using f-strings: age = 25 message = f”I am {age} years old.” print(message) The output will be the same: I am 25 years old.
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