| # -*- coding: utf-8 -*- | |
| import scrapy | |
| import re | |
| import unicodedata | |
| from scrapy.crawler import CrawlerProcess | |
| from urllib.parse import urlparse | |
| class WikiSpider(scrapy.Spider): | |
| name = 'wiki_company' |
| #!/usr/bin/env python | |
| # Copyright 2016 Google Inc. All Rights Reserved. | |
| import os | |
| import sys | |
| import time | |
| os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = 'BigQuery.json' | |
| from google.cloud import bigquery | |
| from google.cloud.bigquery.job import DestinationFormat, ExtractJobConfig, Compression |
Pic credits : Github
Welcome back peeps. We are now starting System Design Series ( over weekends) where we will cover how to design large ( and great) systems, the techniques, tip/tricks that you can refer to in order to scale these systems. As a senior software engineer it’s expected that you know not just the breadth but also depth of the system design concepts.
| __author__ = 'admin' | |
| import sqlite3 | |
| db = sqlite3.connect('books_store.db') | |
| cursor = db.cursor() | |
| try: | |
| cursor.execute('''DROP TABLE books''') | |
| print 'Deleted the old table' |
| # credits source : https://gist.github.com/rueedlinger/76af36d04a0798a8e1f43ed16595bd97 | |
| import sys | |
| import os | |
| import json | |
| import argparse | |
| from base64 import b64encode | |
| PYTHON_MAJOR_VERSION = sys.version_info.major | |
| DEFAULT_HOST = 'localhost' |
| #!/usr/bin/python | |
| import sys, getopt | |
| def __help(): | |
| sys.stderr.write('\n Usage: \n ip_classifier.py -h \n ip_classifier.py --help \n ip_classifier.py -i 128.12.14.23 \n ip_classifier.py --ipv4=128.12.14.23 \n ') | |
| sys.exit() | |
| # 1. How to read and XML file using Python ? | |
| # For example purpose, kindly save the above XML content into a file named as 'data.xml' | |
| # import a class named xml.etree.ElementTree | |
| import xml.etree.ElementTree as element_tree | |
| # Before reading we should parse the whole XML file content as tree | |
| tree = element_tree.parse('data.xml') | |
| # Now with tree we have to fetch the root |
| #!/usr/bin/env python | |
| # I have learned these codes from Learning Python O'reilly | |
| # Python 2.7 | |
| """ | |
| #! is often called hash bang or shebang | |
| /user/bin/python - path of the python executable | |
| #!/usr/bin/python - Unix Styled Executable Scripts (If u know exact path of the python binary) |
| #!/usr/bin/env python | |
| class Worker: | |
| def __init__(self, name, pay): | |
| self.name = name | |
| self.pay = pay | |
| def last_name(self): | |
| return self.name.split()[-1] |
| root@Vijay:# openssl rsa -inform PEM -text -pubin -in publickey.pem -modulus | |
| Public-Key: (704 bit) | |
| Modulus: | |
| 00:e1:34:18:93:fe:6e:68:16:ce:c8:a9:70:a3:9c: | |
| 00:fa:54:7c:7d:a2:cd:ed:ab:0a:62:b9:1c:46:51: | |
| a8:3f:96:38:0b:cf:ae:e2:6f:7e:86:61:07:90:63: | |
| 89:42:1b:1e:68:d0:a1:7a:ad:c9:87:0b:98:58:e9: | |
| 56:28:6e:39:99:e9:8c:ec:98:81:53:4a:c7:72:ae: |
