Python library to get stock quotes from Yahoo! Finance
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#!/usr/bin/env python3
# stockquotes - Python module to pull stock quotes from Yahoo! Finance
#
# Copyright 2020-2023 Samuel Sloniker
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted.
#
# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
from bs4 import BeautifulSoup as bs
import requests
import datetime
class StockDoesNotExistError(Exception):
pass
class NetworkError(Exception):
pass
class Stock:
def __init__(self, ticker):
try:
r = requests.get(
f"https://finance.yahoo.com/quote/{ticker}/history",
headers={
"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:92.0) Gecko/20100101 Firefox/92.0"
},
)
except:
raise NetworkError()
if r.status_code == 302:
raise StockDoesNotExistError(ticker)
try:
soup = bs(r.text, features="lxml")
self.symbol = soup.h1.string.split("(")[1].split(")")[0]
self.name = soup.h1.string.split("(")[0].strip()
rows = soup.table.tbody.find_all("tr")
self.historical = []
for i in rows:
row = i.find_all("td")
try:
parsed = {
"date": datetime.datetime.strptime(
row[0].span.string, "%b %d, %Y"
),
"open": float(row[1].span.string.replace(",", "")),
"high": float(row[2].span.string.replace(",", "")),
"low": float(row[3].span.string.replace(",", "")),
"close": float(row[4].span.string.replace(",", "")),
"adjusted_close": float(
row[5].span.string.replace(",", "")
),
"volume": int(row[6].span.string.replace(",", ""))
if row[6].string != "-"
else None,
}
except:
continue
self.historical.append(parsed)
price_selector = f'fin-streamer[data-field="regularMarketPrice"][data-symbol="{self.symbol}"]'
price_element = soup.select_one(price_selector)
self.current_price = float(price_element.text)
change_selector = f'fin-streamer[data-field="regularMarketChange"][data-symbol="{self.symbol}"]'
change_element = soup.select_one(change_selector)
self.increase_dollars = float(change_element.text)
change_percent_selector = f'fin-streamer[data-field="regularMarketChangePercent"][data-symbol="{self.symbol}"]'
change_percent_element = soup.select_one(change_percent_selector)
change_percent_text = "".join(
[
char
for char in change_percent_element.text
if char in "-.0123456789"
]
)
self.increase_percent = float(change_percent_text)
except AttributeError as error:
raise StockDoesNotExistError(ticker) from error