Formatting Number and Strings in Python | Chapter 2 | Python Tutorial for Beginners

Publié le: 04 juillet 2023
sur la chaîne: KaustubStudyInstitute
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In Python, you can use various methods and formatting options to format numbers and strings. Here are some common techniques:

1. Formatting Numbers:

format() method: Use the format() method to format numbers with specific precision, alignment, and padding. It uses placeholders {} that are replaced with the formatted values.

number = 3.14159
formatted = "{:.2f}".format(number) # Two decimal places
print(formatted) # Output: 3.14

f-strings (formatted string literals): Introduced in Python 3.6, f-strings provide a concise way to format strings, including numbers.

number = 3.14159
formatted = f"{number:.2f}" # Two decimal places
print(formatted) # Output: 3.14

2. Formatting Strings:

% operator: Use the % operator to format strings, similar to C-style formatting. It uses format specifiers to define the desired formatting.

name = "John"
age = 25
formatted = "My name is %s and I'm %d years old." % (name, age)
print(formatted) # Output: My name is John and I'm 25 years old.

format() method: As mentioned earlier, you can also use the format() method to format strings by providing placeholders and replacement values.

name = "John"
age = 25
formatted = "My name is {} and I'm {} years old.".format(name, age)
print(formatted) # Output: My name is John and I'm 25 years old.

f-strings (formatted string literals): With f-strings, you can directly embed variables and expressions within the string.

name = "John"
age = 25
formatted = f"My name is {name} and I'm {age} years old."
print(formatted) # Output: My name is John and I'm 25 years old.

These are just a few examples of formatting numbers and strings in Python. The formatting options can be further customized to suit your specific requirements.


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