Python comes with a rich set of built-in modules known as the standard library, which provides functionality for various tasks.
Some Important Standard Libraries:
os: Interacting with the operating system.sys: Access to some variables used or maintained by the interpreter.math: Mathematical functions.datetime: Manipulating dates and times.random: Generating pseudo-random numbers.json: Encoding and decoding JSON data.re: Regular expressions.urllib: Working with URLs.sqlite3: SQLite database operations.threading: Thread-based parallelism.
Example Using datetime:
import datetime
current_time = datetime.datetime.now()
print("Current date and time:", current_time)
formatted_time = current_time.strftime("%Y-%m-%d %H:%M:%S")
print("Formatted date and time:", formatted_time)Example Using json:
import json
# Convert Python object to JSON string
data = {'name': 'Alice', 'age': 30, 'city': 'New York'}
json_str = json.dumps(data)
print(json_str)
# Convert JSON string to Python object
parsed_data = json.loads(json_str)
print(parsed_data['name']) # Output: Alice
