The Python Standard Library is a collection of built-in modules that come pre-installed with Python.<\/p>\n\n\n\n
You do not need to install them using The standard library helps you:<\/p>\n\n\n\n \u2022 No installation required Provides mathematical functions.<\/p>\n\n\n\n Generates random numbers.<\/p>\n\n\n\n Works with dates and time.<\/p>\n\n\n\n Interacts with the operating system.<\/p>\n\n\n\n Provides system-specific parameters.<\/p>\n\n\n\n Handles JSON data.<\/p>\n\n\n\n Performs statistical calculations.<\/p>\n\n\n\n Provides tools for working with iterators.<\/p>\n\n\n\npip<\/code>.
They are available immediately after installing Python.<\/p>\n\n\n\n\n
WHY USE STANDARD LIBRARY?<\/strong><\/h2>\n\n\n\n
\u2022 Reliable and well-tested
\u2022 Saves development time
\u2022 Covers most common programming tasks<\/p>\n\n\n\nCOMMONLY USED STANDARD LIBRARY MODULES<\/strong><\/h2>\n\n\n\n
1. math<\/strong><\/h3>\n\n\n\n
import mathprint(math.sqrt(16))
print(math.pi)<\/pre>\n\n\n\n2. random<\/strong><\/h3>\n\n\n\n
import randomprint(random.randint(1, 10))<\/pre>\n\n\n\n
3. datetime<\/strong><\/h3>\n\n\n\n
import datetimenow = datetime.datetime.now()
print(now)<\/pre>\n\n\n\n4. os<\/strong><\/h3>\n\n\n\n
import osprint(os.getcwd())<\/pre>\n\n\n\n
5. sys<\/strong><\/h3>\n\n\n\n
import sysprint(sys.version)<\/pre>\n\n\n\n
6. json<\/strong><\/h3>\n\n\n\n
import jsondata = {\"name\": \"Hira\", \"age\": 25}
json_data = json.dumps(data)
print(json_data)<\/pre>\n\n\n\n7. statistics<\/strong><\/h3>\n\n\n\n
import statisticsnumbers = [10, 20, 30, 40]
print(statistics.mean(numbers))<\/pre>\n\n\n\n8. itertools<\/strong><\/h3>\n\n\n\n
import itertoolsnumbers = [1, 2, 3]
for pair in itertools.combinations(numbers, 2):
print(pair)<\/pre>\n\n\n\nHOW TO SEE ALL STANDARD LIBRARY MODULES<\/strong><\/h2>\n\n\n\n