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Web Scraping When you take any online publicly available data and import the found information into any local fime on your computer. For example, get the current price from stock exchange website or daily bar chart from finance website. Web Crawling It is used for data extraction and refers to collecting data from either the world wide web. It is done in large quantities. IP Internet Protocol ad..

ip addr show Show me current IP. ip addr show 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet ###.#.#.#/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eno1: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 8c:dc:d4:22:94..

update It takes a key-value pair and puts into the existing dictionary. icecream = {'탱크보이': 1200, '폴라포': 1200, '빵빠레': 1800, '월드콘': 1500, '메로나': 1000} new_product = {'팥빙수':2700, '아맛나':1000} icecream.update(new_product) icecream >>> {'탱크보이': 1200, '폴라포': 1200, '빵빠레': 1800, '월드콘': 1500, '메로나': 1000, '팥빙수': 2700, '아맛나': 1000} islower Checks if all the characters in the text are in lower case. user_i..

datetime The module works with dates and time. x=datetime.datetime.now() x >>> datetime.datetime(2021, 5, 14, 13, 7, 18, 347271) timedelta It presents under datetime library which is generally used for calculating differences in dates and also can be used for date manipulations. from datetime import datetime, timedelta for day in range(5,0,-1): delta=timedelta(days=day) print(x-delta) >>> 2021-0..

sep Seperator, between the arguments to print() function. print('naver','kakao','samsung',sep=';') >>> naver;kakao;samsung print('naver','kakao','sk','samsung',sep='/') >>> naver/kakao/sk/samsung end= It can be put anything in end, then it will be following. '\n\ is the default. print("first",end=' ');print("second") >>> first second ; : Multiple command in one line. replace string.replace(old,n..