Trouble scraping Tableau public dashboard

发布于 2020-12-04 02:00:37

I'm attempting to scrape this Tableau dashboard, however I'm running into a problem where I am missing values in my output. Specifically, it seems like my code won't scrape/print repeated values (a value that shows up twice will only be scraped/printed once).

Here is the code I am using:

import requests
from bs4 import BeautifulSoup
import json
import re

r = requests.get("https://public.tableau.com/views/COVID-19HospitalsDashboard/Hospitals?%3Aembed=y&%3AshowVizHome=no", 
    params = {
    ":embed": "y",
    ":showVizHome": "no",
    ":host_url": "https://public.tableau.com/",
    ":embed_code_version": 3,
    ":tabs": "no",
    ":toolbar": "no",
    ":animate_transition": "yes",
    ":display_static_image": "no",
    ":display_spinner": "no",
    ":display_overlay": "yes",
    ":display_count": "yes",
    ":language": "en",
    ":loadOrderID": 0
})
soup = BeautifulSoup(r.text, "html.parser")

tableauData = json.loads(soup.find("textarea",{"id": "tsConfigContainer"}).text)

dataUrl = f'https://public.tableau.com{tableauData["vizql_root"]}/bootstrapSession/sessions/{tableauData["sessionid"]}'

r = requests.post(dataUrl, data= {
    "sheet_id": tableauData["sheetId"],
})
dataReg = re.search('\d+;({.*})\d+;({.*})', r.text, re.MULTILINE)
info = json.loads(dataReg.group(1))
data = json.loads(dataReg.group(2))

print(data["secondaryInfo"]["presModelMap"]["dataDictionary"]["presModelHolder"]["genDataDictionaryPresModel"]["dataSegments"]["0"]["dataColumns"])

Questioner

Henry St

Viewed

Original

x = data["secondaryInfo"]["presModelMap"]["dataDictionary"]["presModelHolder"]["genDataDictionaryPresModel"]["dataSegments"]["0"]["dataColumns"][0]["dataValues"] duplicates = set() # loop through elements and find matches for i in x: if i not in duplicates: duplicates.add(i) print(len(duplicates))

Trouble scraping Tableau public dashboard

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