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in BI by (17.6k points)

I want to scrap data from this page (and pages similar to it):

This page uses Power BI. Unfortunately, finding a way to scrap Power BI is hard, because everyone wants to scrap using/into Power BI, not from it. The closest answer was this question. Yet unrelated.

Firstly, I used Apache tika, and soon I realized the table data is been loading after loading the page. I need the rendered version of the page.

Therefore, I used Selenium. I wanted to Select All at the begining (sending Ctrl+A key combination), but it doesn't work. Maybe it is restricted by the page events (I also tried to remove all the events using developer tools, yet still Ctrl+A doesn't work.

I also tried to read the HTML contents, but Power BI puts div elements on the screen using position:absolute and distinguishing the location of a div in the table (both row and column) is an effortful activity.

Since Power BI uses JSON, I tried to read data from there. However, it is so complicated I couldn't find out the rules. It seems it puts keywords somewhere and uses their indices in the table.

Note: I realized that all of the data is not loaded and even shown at the same time. A div of class scroll-bar-part-bar is responsible to act as a scroll bar and moving that loads/show other parts of the data.

The code I used to read data is as follows. As mentioned, the order of the produced data differs from what is rendered on the browser:

from selenium import webdriver from selenium.webdriver.common.keys import Keys options = webdriver.ChromeOptions() options.binary_location = "C:/Program Files (x86)/Google/Chrome/Application/chrome.exe" driver = webdriver.Chrome(options=options, executable_path="C:/Drivers/chromedriver.exe") driver.get("") parent = driver.find_element_by_xpath('//*[@id="pvExplorationHost"]/div/div/div/div[2]/div/div[2]/div[2]/visual-container[4]/div/div[3]/visual/div') children = parent.find_elements_by_xpath('.//*') values = [child.get_attribute('title') for child in children]

I appreciate solutions for any of the above problems. The most interesting for me though is the convention of storing Power BI data in JSON format. 

1 Answer

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by (47.2k points)
  • Putting the scroll part and the JSON aside, I managed to read the data. The key is to read all of the elements inside the parent (which is done in the question):

parent = driver.find_element_by_xpath('//*[@id="pvExplorationHost"]/div/div/div/div[2]/div/div[2]/div[2]/visual-container[4]/div/div[3]/visual/div')

children = parent.find_elements_by_xpath('.//*')

  • Then sort them using their location:

x = [child.location['x'] for child in children]

y = [child.location['y'] for child in children]

index = np.lexsort((x,y))

  • To sort what we have read in different lines, this code may help:

rows = []

row = []

last_line = y[index[0]]

for i in index:

    if last_line != y[i]:




        row = list([children[i].get_attribute('title')]


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