Reputation: 1
I'm trying to access the table details to ultimately put into a dataframe
and save as a csv
with a limited number of rows(the dataset is massive) from the following site: https://data.cityofchicago.org/Public-Safety/Crimes-2001-to-present/ijzp-q8t2/data
I'm just starting out webscraping and was practicing on this dataset. I can effectively pull tags like div
but when I try soup.findAll('tr')
or td
, it returns an empty set.
The table appears to be embedded in a different code(see link above) so that's maybe my issue, but still unsure how to access the detail rows and headers, etc..., Selenium maybe?
Thanks in advance!
Upvotes: 0
Views: 253
Reputation: 8025
By the looks of it, the website already allows you to export the data:
As it would seem, the original link is:
https://data.cityofchicago.org/Public-Safety/Crimes-2001-to-present/ijzp-q8t2/data
The .csv
download link is:
https://data.cityofchicago.org/api/views/ijzp-q8t2/rows.csv?accessType=DOWNLOAD
The .json
link is:
https://data.cityofchicago.org/resource/ijzp-q8t2.json
Therefore you could simply extract the ID of the data, in this case ijzp-q8t2
, and replace it on the download links above. Here is the official documentation of their API.
import pandas as pd
from sodapy import Socrata
# Unauthenticated client only works with public data sets. Note 'None'
# in place of application token, and no username or password:
client = Socrata("data.cityofchicago.org", None)
# Example authenticated client (needed for non-public datasets):
# client = Socrata(data.cityofchicago.org,
# MyAppToken,
# userame="[email protected]",
# password="AFakePassword")
# First 2000 results, returned as JSON from API / converted to Python list of
# dictionaries by sodapy.
results = client.get("ijzp-q8t2", limit=2000)
# Convert to pandas DataFrame
results_df = pd.DataFrame.from_records(results)
Upvotes: 2