Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Concept explainers

Network Protocols
A network protocol is a set of rules that govern how data is exchanged between the devices in a network. Network protocols enable communication between devices that are located in different parts of the world. Consequently, they are critical in today's d…
Question

can you please double-check this code? thank you!

Angela Marie v « CENGAGE MINDTAP Q Search this course 4 My Home Module Lab Assessment 2: Resource URL Validator Tasks main.py main2.py Courses 1 def validate_url(url): O Catalog and Study Tools Create two lists of strings - ... > 2 "I"Validates the given url passed as string. 3 А-Z BE Rental Options 4 4 Arguments: Write the conditions to url String, A valid url should be of form <Protocol>://<hostmain> - - return a Boolean value of College Success Tips 6 True if the URL is valid, and [http, https, ftp] string [.html, .csv, .docx] 7 Protocol = Career Success Tips False if either the 8 Hostname = Protocol or the File Fileinfo %D 2 Help extension is not valid. 10 IL I|| valid_protocols = ['http', 'https', 'ftp'] valid_fileinfo = ['.html', '.csv', '.docx'] 11 Q Give Feedback 12 This task will be manually gr.. 13 url_split = url.split('://') = False isFileValid = False for x in valid_protocols: if x in url_split[0] 14 15 isProtocolValid 16 17 18 19 isFileValid = True 20 for x in valid_fileinfo: if x in url_split[1]: 21 22 23 isFileValid = True 24 return(isProtocolValid and isFileValid) input ("Enter an URL: ") print(validate_url(url)) 25 26 url %D 27 28 Run checks D Submit 62% LO
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Transcribed Image Text:Angela Marie v « CENGAGE MINDTAP Q Search this course 4 My Home Module Lab Assessment 2: Resource URL Validator Tasks main.py main2.py Courses 1 def validate_url(url): O Catalog and Study Tools Create two lists of strings - ... > 2 "I"Validates the given url passed as string. 3 А-Z BE Rental Options 4 4 Arguments: Write the conditions to url String, A valid url should be of form <Protocol>://<hostmain> - - return a Boolean value of College Success Tips 6 True if the URL is valid, and [http, https, ftp] string [.html, .csv, .docx] 7 Protocol = Career Success Tips False if either the 8 Hostname = Protocol or the File Fileinfo %D 2 Help extension is not valid. 10 IL I|| valid_protocols = ['http', 'https', 'ftp'] valid_fileinfo = ['.html', '.csv', '.docx'] 11 Q Give Feedback 12 This task will be manually gr.. 13 url_split = url.split('://') = False isFileValid = False for x in valid_protocols: if x in url_split[0] 14 15 isProtocolValid 16 17 18 19 isFileValid = True 20 for x in valid_fileinfo: if x in url_split[1]: 21 22 23 isFileValid = True 24 return(isProtocolValid and isFileValid) input ("Enter an URL: ") print(validate_url(url)) 25 26 url %D 27 28 Run checks D Submit 62% LO
Scenario You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web page, extracts the URLS present in that page, and then recursively fetches new pages using the extracted URLS. The end goal of a web crawler is to collect text data, images, or other resources present in order to validate resource URLS or hyperlinks on a page. URL validators can be useful to validate if the extracted URL is a valid resource to fetch. In this scenario, you will build a URL validator that checks for supported protocols and file types.
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Transcribed Image Text:Scenario You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web page, extracts the URLS present in that page, and then recursively fetches new pages using the extracted URLS. The end goal of a web crawler is to collect text data, images, or other resources present in order to validate resource URLS or hyperlinks on a page. URL validators can be useful to validate if the extracted URL is a valid resource to fetch. In this scenario, you will build a URL validator that checks for supported protocols and file types.
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in given code is right but  may be some  errors  because :

========================================================

Here i describe errors:

1.line 17:

 x is not difine

 

 

 

 

 

 

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