Web Scraping Python Pandas



  • What this does: Scrapes pages to get alt tags and page titles, and saves as CSV
  • Requires: Python Anaconda distribution, basic knowledge of Pandas and HTML structure
  • Concepts covered: Basic scraper with BeautifulSoup, Scrape multiple pages, Loops, Export to CSV
  • Download the entire Python file

Web Scraping: This Section helps you to learn Scraping the data and storing the data in our desired Format. Here we will have the data scraped and use parsing of data and store it in Pandas for reference. Helps in Understanding the structure of HTML and Javascript file to parse the data. Web Scraping with Python: Collecting More Data from the Modern Web — Book on Amazon. Jose Portilla's Data Science and ML Bootcamp — Course on Udemy. Easiest way to get started with Data Science. Covers Pandas, Matplotlib, Seaborn, Scikit-learn, and a lot of other useful topics.

  • Web scraping basically means that, instead of using a browser, we can use Python to send request to a website server, receive the HTML code, then extract the data we want.
  • Web Scraping Crypto Prices With Python. This is the most beautiful soup. To get this done, we’ll use the famous pandas package and store this in a data frame.
  • Because there is one table on the page. If you change the url, the output will differ. To output the table.

Python has a lot of great uses for marketers, and one of the coolest and most practical tools is a web scraper.

There are many situations where you may need to collect data quickly from a website and save into a usable format. One example is getting image alt or title attributes, which have value for SEO purposes.

Pandas

In this post, we’ll create a simple web scraper in Python that will collect the alt attributes of images and the title of the page on which they appear.

The scraper uses a library called BeautifulSoup. For a full tutorial on using BeautifulSoup, I’d recommend this tutorial, which provides a really great explanation of how it works.

Getting started

First, we’ll import our libraries.

Next, we’ll generate the CSV file.

Web Scraping Python Pandas

Next, we’ll define the URLs we want to scrape in a list.

Web Scraping Python Pandas

Download kurzweil 3000 mac. Then, we’ll create a blank dataframe. Cubase 7 mac download.

Web Scraping Python PandasPandas

Conceptualizing data scraping

Our end goal for the data is to have two columns. The first column will have the page name and the second column will have the alt attribute. So, it should look a little something like this:

pagenamealt
Blog HomeComputer screen
Blog HomePie chart
PortfolioMountains
PortfolioLake

So, we can conceptualize the scraping process like this:

Web Scraping Python Pandas Example

Scraping with BeautifulSoup

Web Scraping Table Python Pandas

Because we’re going to be scraping multiple URLs, we’ll need to create a loop to repeat the steps for each page. Be sure to pay attention to the indents in the code (or download the .py file).

Web Scraping Table Python Pandas

For the page title, we’ll want to scrape the H1 tag. We’ll use the find() function to find the H1 tag. We’ll print that information and also store it as a variable for a later step.

Scraping

Next, we’ll scrape the images and collect the alt attributes. Because some images like the logo are repeated on every page, I don’t want to scrape these. Instead, I’ll use .find_all() and only return images with the class “content-header”. Once it finds the images, we’ll print the alt attributes.

Web Scraping Python Beautifulsoup Pandas

Because there may be multiple images on the page, we’ll have to create another loop within the larger loop.

Download movies offline mac. Here comes the cool part. We’ll create a variable defined as the alt attribute. Using this and the variable for the H1 tag we created earlier, we’ll couple these and append them to the dataframe. This step will be repeated each time the loop runs, so for every image on the page with the content header class.

Finally, we’ll save our dataframe to a CSV file.

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