The Unofficial API for barchart.com
pip install barchart
from barchart import UOA
uoa = UOA()
uoa.data
[
{'Symbol': 'TGT', 'Price': '153.78', 'Type': 'Call', 'Strike': '160.00', 'Exp Date': '08/28/20', 'DTE': '9', 'Bid': '1.53', 'Midpoint': '1.55', 'Ask': '1.56', 'Last': '1.40', 'Volume': '7,382', 'Open Int': '165', 'Vol/OI': '44.74', 'IV': '38.08%', 'Delta': '50', 'Last Trade': '13:19 ET'},
]
#Create CSV file
uoa.to_csv()
#Options
uoa = UOA(timeout=100, user_agent='whatever user agent you want to use')
The first time you ever run the render() method, it will download Chromium into your home directory (e.g. ~/.pyppeteer/). This only happens once. Additional necessary linux packages may need to be installed.
You have the option to pass in your own user in UOA(user_agent='Chrome...')
Sometimes barchart will limit the amount of results based on what type of user agent you are using.
Timeout issues do sometimes occur when fetching with asycnc since data is loaded onto the DOM asynchronous.
A Timeout Exception will be raised barchart.helpers.errors.TimeoutError
At the moment, it takes about 1 minute to fetch and parse 10-12 pages.
If a parsing exception is raised, look at the above exception which ouputs the html in text. If the html response looks correct and the exception is still
persisting, please create a issue ticket.
Parsing exceptions barchart.helpers.errors.ParsingError: Parsing error: Index error on table headers, check html response above
Sometimes barchart likes to suppress most of their data at different times of day.