CODEWITHSUNDEEP
python
Braydon
Braydon

Reputation: 29

Iteratively adding keys and values to a dictionary

I am trying to figure out the best way to add keys and values in a dictionary. A little context on my problem. I am trying to do graph traversal where each node is a subpage of a basic HTML website. I am looking for the links that each page contains and where they go. I am struggling trying to figure out how to do this iteratively.

Example of what I am talking about: Graph = {Current_Page : {links that are on this page} Graph = {page1: {'page2', 'page3' page4'}

Next I want to go to page 2 and find all the link it has access to and add those to the graph dictionary. Graph = {page2: {'page1', 'page3' page4', 'page5'}

I am fairly new to python, but I will try my best to understand.

Upvotes: 0

Views: 200

Answers (3)

Braydon
Braydon

Reputation: 29

To anyone who may look at this for a solution this is what I did. I compiled a list of all the webpages that I wanted to get the links on that page to, it is stored in a list called pages. I also used a getLinksmethod that would fetch the links for me.

graph = {}
for value in pages:
    graph[value] = getLinks(value)

This returned a dictionary with the formatting in the original problem statement.

Upvotes: 0

Hamza
Hamza

Reputation: 6045

A good way to do is to have all the pages you want to get links for in a list (I assumed pages) and have a function for getting links from that page as get_links(). You can then use following snippet as a readable and reliable approach to achieve what you are trying to achieve:

Graph = {}
for page, page_number in enumerate(pages):
    Graph['page' + page_number] = get_links(page)

Upvotes: 1

Om Chabra
Om Chabra

Reputation: 35

You can try simply looping through each page, finding the links and then adding them to the dictionary.

Graph = {}
for pageNumber in range(0, pagesNumber, 1):
    linkList =  ##I think you figured this part out?
    Graph['page' + pageNumber] = linkList

That should add it to the dictionary. Just add in the code to find the links and fill in all the variables, good luck!

Upvotes: 1

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