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How-to-Extract-Clean-and-Save-Zillow-Apartment-Data

We have used Python to scrape apartment data on Zillow.

We-have-used-Python-to-scrape

As many Zillow tutorials and projects focused on buying a home, we thought it might be interesting to scrape Zillow apartment data, as the data reverted is a lesser variable than home data.

We will show three critical steps associated with getting current apartment data:

  • Scrape a Zillow page for an apartment in Orlando
  • Cleaning or transforming the result data frames
  • Storing 400+ rows in the BigQuery table for future analysis

We have covered methods you might have encountered, including BeautifulSoup, basic SQL, Panda's operation to do data frame manipulation, and BigQuery API.

Scrape Zillow Data

Unlike sites with substantial text, including Wikipedia, Zillow includes many dynamic and visual elements like map applications and slide shows.

It doesn't make it harder to extract data, but you'll need to dig a bit deeper into underlying CSS or HTML to get the particular elements you'll need to target.

For initial data, we require to resolve three problems:

  • Finding the applicable elements and storing their output
  • Increasing the page counts to account for different results
  • Converting the result dictionary to a workable and legible data frames

Finding the applicable elements

Complete disclosure:

Complete-disclosure

The thorniest part of web scraping is getting the elements containing the data you wish to scrape.

If you're using Chrome, hovering on what you need to extract and pressing "Inspect" will show you the fundamental developer code.

Here, we want to focus on a class called "Styled Property Card Data."

When you're over the sticker shock of the 1-bedroom apartment available at $1800/month, you can utilize both request and BeautifulSoup libraries to make an easy initial request.

Note: All requests made to Zillow would activate a captcha. So, to avoid it, utilize a header given in the script here.

All-requests-made-to-Zillow-would-activate-a-captcha

Before you return or print any outputs, ensure your request got successful. In the case of 200, we could check the results of "req."

Before-you-return-or-print-any

Studying a line of raw output approves that we're directing the correct elements.

We have raw data, so we must regulate precisely which elements to analyze.

In imagining the final SQL table, we have determined we need the given fields:

  • Pricing (Monthly)
  • Address (individual or complex unit)
  • Space (Total bathrooms, bedrooms, and square footage) frames

After searching around, we thought this information gets stored in the following elements:

After-searching-around

To scrape these elements, we have to make a looping structure with a data structure for storing results, or we'll only have limited rows.

To-scrape-these-elements-we-have-to-make

We'll do the requests again while looping through the length of the results saved in "apts."

It returns a listing of dictionaries with one dict for every listing.

It-returns-a-listing

Increasing the Page Counts for the All Results

Increasing-the-Page-Counts-for-the-All-Results

If you get the right parameters, you could treat the string with a link including other f-strings and insert variables that can change provided the looping structure.

We previously covered the web extraction concept while trying to ask for data from different pages of Rick & Morty API.

In this example, we have to append a page number variable to an original URL and loop through integers.

Let's include this in the more extensive script:

Let-s-include-this-in-the-more-extensive-script

And verify the results:

And-verify-the-results

Note that we have the listing of dicts for all pages specified within the range.

Converting into Data Frames

Converting-into-Data-Frames

However, being a data scraping company, we don't like disorganized data. We will clean this by iterating this list and improving the data frame.

Wow! The results are much better!

Wow-The-results-are-much-better

Conclusion

We have learned how to understand and manipulate data saved in the HTML code.

We have learned how to make a request and save raw data in the listing of dictionaries.

We have covered dynamic link generation for iterating through different pages.

In conclusion, we have converted a messy result into a moderately cleaner data frame.

For more information about Zillow data scraping services, contact Actowiz Solutions. You can also contact us for all your mobile app scraping and web scraping service and data collection service requirements.

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