/
base.py
1021 lines (871 loc) · 37.7 KB
/
base.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# yfinance - market data downloader
# https://github.com/ranaroussi/yfinance
#
# Copyright 2017-2019 Ran Aroussi
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from __future__ import print_function
import time as _time
import datetime as _datetime
import pytz as _tz
import requests as _requests
import pandas as _pd
import numpy as _np
import re as _re
try:
from urllib.parse import quote as urlencode
except ImportError:
from urllib import quote as urlencode
from . import utils
import json as _json
# import re as _re
# import sys as _sys
from . import shared
_BASE_URL_ = 'https://query2.finance.yahoo.com'
_SCRAPE_URL_ = 'https://finance.yahoo.com/quote'
_ROOT_URL_ = 'https://finance.yahoo.com'
class TickerBase():
def __init__(self, ticker, session=None):
self.ticker = ticker.upper()
self.session = session
self._history = None
self._base_url = _BASE_URL_
self._scrape_url = _SCRAPE_URL_
self._tz = None
self._fundamentals = False
self._info = None
self._analysis = None
self._sustainability = None
self._recommendations = None
self._major_holders = None
self._institutional_holders = None
self._mutualfund_holders = None
self._isin = None
self._news = []
self._shares = None
self._calendar = None
self._expirations = {}
self._earnings_dates = None
self._earnings_history = None
self._earnings = None
self._financials = None
self._balancesheet = None
self._cashflow = None
# accept isin as ticker
if utils.is_isin(self.ticker):
self.ticker = utils.get_ticker_by_isin(self.ticker, None, session)
def stats(self, proxy=None):
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
if self._fundamentals:
return
ticker_url = "{}/{}".format(self._scrape_url, self.ticker)
# get info and sustainability
data = utils.get_json(ticker_url, proxy, self.session)
return data
def history(self, period="1mo", interval="1d",
start=None, end=None, prepost=False, actions=True,
auto_adjust=True, back_adjust=False, keepna=False,
proxy=None, rounding=False, timeout=None, **kwargs):
"""
:Parameters:
period : str
Valid periods: 1d,5d,1mo,3mo,6mo,1y,2y,5y,10y,ytd,max
Either Use period parameter or use start and end
interval : str
Valid intervals: 1m,2m,5m,15m,30m,60m,90m,1h,1d,5d,1wk,1mo,3mo
Intraday data cannot extend last 60 days
start: str
Download start date string (YYYY-MM-DD) or _datetime.
Default is 1900-01-01
end: str
Download end date string (YYYY-MM-DD) or _datetime.
Default is now
prepost : bool
Include Pre and Post market data in results?
Default is False
auto_adjust: bool
Adjust all OHLC automatically? Default is True
back_adjust: bool
Back-adjusted data to mimic true historical prices
keepna: bool
Keep NaN rows returned by Yahoo?
Default is False
proxy: str
Optional. Proxy server URL scheme. Default is None
rounding: bool
Round values to 2 decimal places?
Optional. Default is False = precision suggested by Yahoo!
timeout: None or float
If not None stops waiting for a response after given number of
seconds. (Can also be a fraction of a second e.g. 0.01)
Default is None.
**kwargs: dict
debug: bool
Optional. If passed as False, will suppress
error message printing to console.
"""
# Work with errors
debug_mode = True
if "debug" in kwargs and isinstance(kwargs["debug"], bool):
debug_mode = kwargs["debug"]
if "many" in kwargs and kwargs["many"]:
# Disable prints with threads, it deadlocks/throws
debug_mode = False
err_msg = "No data found for this date range, symbol may be delisted"
if start or period is None or period.lower() == "max":
# Check can get TZ. Fail => probably delisted
tz = self._get_ticker_tz(debug_mode, proxy, timeout)
if tz is None:
# Every valid ticker has a timezone. Missing = problem
shared._DFS[self.ticker] = utils.empty_df()
shared._ERRORS[self.ticker] = err_msg
if debug_mode:
print('- %s: %s' % (self.ticker, err_msg))
return utils.empty_df()
if end is None:
end = int(_time.time())
else:
end = utils._parse_user_dt(end, tz)
if start is None:
if interval == "1m":
start = end - 604800 # Subtract 7 days
else:
start = -631159200
else:
start = utils._parse_user_dt(start, tz)
params = {"period1": start, "period2": end}
else:
period = period.lower()
params = {"range": period}
params["interval"] = interval.lower()
params["includePrePost"] = prepost
params["events"] = "div,splits"
# 1) fix weired bug with Yahoo! - returning 60m for 30m bars
if params["interval"] == "30m":
params["interval"] = "15m"
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
# Getting data from json
url = "{}/v8/finance/chart/{}".format(self._base_url, self.ticker)
session = self.session or _requests
data = None
try:
data = session.get(
url=url,
params=params,
proxies=proxy,
headers=utils.user_agent_headers,
timeout=timeout
)
if "Will be right back" in data.text or data is None:
raise RuntimeError("*** YAHOO! FINANCE IS CURRENTLY DOWN! ***\n"
"Our engineers are working quickly to resolve "
"the issue. Thank you for your patience.")
data = data.json()
except Exception:
pass
if data is None or not type(data) is dict or 'status_code' in data.keys():
shared._DFS[self.ticker] = utils.empty_df()
shared._ERRORS[self.ticker] = err_msg
if debug_mode:
print('- %s: %s' % (self.ticker, err_msg))
return utils.empty_df()
if "chart" in data and data["chart"]["error"]:
err_msg = data["chart"]["error"]["description"]
shared._DFS[self.ticker] = utils.empty_df()
shared._ERRORS[self.ticker] = err_msg
if debug_mode:
print('- %s: %s' % (self.ticker, err_msg))
return shared._DFS[self.ticker]
elif "chart" not in data or data["chart"]["result"] is None or \
not data["chart"]["result"]:
shared._DFS[self.ticker] = utils.empty_df()
shared._ERRORS[self.ticker] = err_msg
if debug_mode:
print('- %s: %s' % (self.ticker, err_msg))
return shared._DFS[self.ticker]
# parse quotes
try:
quotes = utils.parse_quotes(data["chart"]["result"][0])
# Yahoo bug fix - it often appends latest price even if after end date
if end and not quotes.empty:
endDt = _pd.to_datetime(_datetime.datetime.utcfromtimestamp(end))
if quotes.index[quotes.shape[0]-1] >= endDt:
quotes = quotes.iloc[0:quotes.shape[0]-1]
except Exception:
shared._DFS[self.ticker] = utils.empty_df()
shared._ERRORS[self.ticker] = err_msg
if debug_mode:
print('- %s: %s' % (self.ticker, err_msg))
return shared._DFS[self.ticker]
# 2) fix weired bug with Yahoo! - returning 60m for 30m bars
if interval.lower() == "30m":
quotes2 = quotes.resample('30T')
quotes = _pd.DataFrame(index=quotes2.last().index, data={
'Open': quotes2['Open'].first(),
'High': quotes2['High'].max(),
'Low': quotes2['Low'].min(),
'Close': quotes2['Close'].last(),
'Adj Close': quotes2['Adj Close'].last(),
'Volume': quotes2['Volume'].sum()
})
try:
quotes['Dividends'] = quotes2['Dividends'].max()
except Exception:
pass
try:
quotes['Stock Splits'] = quotes2['Dividends'].max()
except Exception:
pass
try:
if auto_adjust:
quotes = utils.auto_adjust(quotes)
elif back_adjust:
quotes = utils.back_adjust(quotes)
except Exception as e:
if auto_adjust:
err_msg = "auto_adjust failed with %s" % e
else:
err_msg = "back_adjust failed with %s" % e
shared._DFS[self.ticker] = utils.empty_df()
shared._ERRORS[self.ticker] = err_msg
if debug_mode:
print('- %s: %s' % (self.ticker, err_msg))
if rounding:
quotes = _np.round(quotes, data[
"chart"]["result"][0]["meta"]["priceHint"])
quotes['Volume'] = quotes['Volume'].fillna(0).astype(_np.int64)
# actions
dividends, splits = utils.parse_actions(data["chart"]["result"][0])
tz_exchange = data["chart"]["result"][0]["meta"]["exchangeTimezoneName"]
# combine
df = _pd.concat([quotes, dividends, splits], axis=1, sort=True)
df["Dividends"].fillna(0, inplace=True)
df["Stock Splits"].fillna(0, inplace=True)
# index eod/intraday
df.index = df.index.tz_localize("UTC").tz_convert(tz_exchange)
df = utils.fix_Yahoo_dst_issue(df, params["interval"])
if params["interval"][-1] == "m":
df.index.name = "Datetime"
elif params["interval"] == "1h":
pass
else:
# If a midnight is during DST transition hour when clocks roll back,
# meaning clock hits midnight twice, then use the 2nd (ambiguous=True)
df.index = _pd.to_datetime(df.index.date).tz_localize(tz_exchange, ambiguous=True)
df.index.name = "Date"
# duplicates and missing rows cleanup
df = df[~df.index.duplicated(keep='first')]
self._history = df.copy()
if not actions:
df = df.drop(columns=["Dividends", "Stock Splits"])
if not keepna:
mask_nan_or_zero = (df.isna()|(df==0)).all(axis=1)
df = df.drop(mask_nan_or_zero.index[mask_nan_or_zero])
return df
# ------------------------
def _get_ticker_tz(self, debug_mode, proxy, timeout):
if not self._tz is None:
return self._tz
tkr_tz = utils.cache_lookup_tkr_tz(self.ticker)
if tkr_tz is not None:
invalid_value = isinstance(tkr_tz, str)
if not invalid_value:
try:
_tz.timezone(tz)
except:
invalid_value = True
if invalid_value:
# Clear from cache and force re-fetch
utils.cache_store_tkr_tz(self.ticker, None)
tkr_tz = None
if tkr_tz is None:
tkr_tz = self._fetch_ticker_tz(debug_mode, proxy, timeout)
if tkr_tz is not None:
try:
utils.cache_store_tkr_tz(self.ticker, tkr_tz)
except PermissionError:
# System probably read-only, so cannot cache
pass
self._tz = tkr_tz
return tkr_tz
def _fetch_ticker_tz(self, debug_mode, proxy, timeout):
# Query Yahoo for basic price data just to get returned timezone
params = {"range":"1d", "interval":"1d"}
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
# Getting data from json
url = "{}/v8/finance/chart/{}".format(self._base_url, self.ticker)
session = self.session or _requests
try:
data = session.get(url=url, params=params, proxies=proxy, headers=utils.user_agent_headers, timeout=timeout)
data = data.json()
except Exception as e:
if debug_mode:
print("Failed to get ticker '{}' reason: {}".format(self.ticker, e))
return None
else:
error = data.get('chart', {}).get('error', None)
if error:
# explicit error from yahoo API
if debug_mode:
print("Got error from yahoo api for ticker {}, Error: {}".format(self.ticker, error))
else:
try:
return data["chart"]["result"][0]["meta"]["exchangeTimezoneName"]
except Exception as err:
if debug_mode:
print("Could not get exchangeTimezoneName for ticker '{}' reason: {}".format(self.ticker, err))
print("Got response: ")
print("-------------")
print(" {}".format(data))
print("-------------")
return None
def _get_info(self, proxy=None):
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
if (self._info is None) or (self._sustainability is None) or (self._recommendations is None):
## Need to fetch
pass
else:
return
ticker_url = "{}/{}".format(self._scrape_url, self.ticker)
# get info and sustainability
data = utils.get_json(ticker_url, proxy, self.session)
# sustainability
d = {}
try:
if isinstance(data.get('esgScores'), dict):
for item in data['esgScores']:
if not isinstance(data['esgScores'][item], (dict, list)):
d[item] = data['esgScores'][item]
s = _pd.DataFrame(index=[0], data=d)[-1:].T
s.columns = ['Value']
s.index.name = '%.f-%.f' % (
s[s.index == 'ratingYear']['Value'].values[0],
s[s.index == 'ratingMonth']['Value'].values[0])
self._sustainability = s[~s.index.isin(
['maxAge', 'ratingYear', 'ratingMonth'])]
except Exception:
pass
# info (be nice to python 2)
self._info = {}
try:
items = ['summaryProfile', 'financialData', 'quoteType',
'defaultKeyStatistics', 'assetProfile', 'summaryDetail']
for item in items:
if isinstance(data.get(item), dict):
self._info.update(data[item])
except Exception:
pass
# For ETFs, provide this valuable data: the top holdings of the ETF
try:
if 'topHoldings' in data:
self._info.update(data['topHoldings'])
except Exception:
pass
try:
if not isinstance(data.get('summaryDetail'), dict):
# For some reason summaryDetail did not give any results. The price dict usually has most of the same info
self._info.update(data.get('price', {}))
except Exception:
pass
try:
# self._info['regularMarketPrice'] = self._info['regularMarketOpen']
self._info['regularMarketPrice'] = data.get('price', {}).get(
'regularMarketPrice', self._info.get('regularMarketOpen', None))
except Exception:
pass
try:
self._info['preMarketPrice'] = data.get('price', {}).get(
'preMarketPrice', self._info.get('preMarketPrice', None))
except Exception:
pass
self._info['logo_url'] = ""
try:
if not 'website' in self._info:
self._info['logo_url'] = 'https://logo.clearbit.com/%s.com' % self._info['shortName'].split(' ')[0].split(',')[0]
else:
domain = self._info['website'].split(
'://')[1].split('/')[0].replace('www.', '')
self._info['logo_url'] = 'https://logo.clearbit.com/%s' % domain
except Exception:
pass
# events
try:
cal = _pd.DataFrame(
data['calendarEvents']['earnings'])
cal['earningsDate'] = _pd.to_datetime(
cal['earningsDate'], unit='s')
self._calendar = cal.T
self._calendar.index = utils.camel2title(self._calendar.index)
self._calendar.columns = ['Value']
except Exception:
pass
# analyst recommendations
try:
rec = _pd.DataFrame(
data['upgradeDowngradeHistory']['history'])
rec['earningsDate'] = _pd.to_datetime(
rec['epochGradeDate'], unit='s')
rec.set_index('earningsDate', inplace=True)
rec.index.name = 'Date'
rec.columns = utils.camel2title(rec.columns)
self._recommendations = rec[[
'Firm', 'To Grade', 'From Grade', 'Action']].sort_index()
except Exception:
pass
# Complementary key-statistics. For now just want 'trailing PEG ratio'
session = self.session or _requests
keys = {"trailingPegRatio"}
if len(keys)>0:
# For just one/few variable is faster to query directly:
url = "https://query1.finance.yahoo.com/ws/fundamentals-timeseries/v1/finance/timeseries/{}?symbol={}".format(self.ticker, self.ticker)
for k in keys:
url += "&type="+k
# Request 6 months of data
url += "&period1={}".format(int((_datetime.datetime.now()-_datetime.timedelta(days=365//2)).timestamp()))
url += "&period2={}".format(int((_datetime.datetime.now()+_datetime.timedelta(days=1)).timestamp()))
json_str = session.get(url=url, proxies=proxy, headers=utils.user_agent_headers).text
json_data = _json.loads(json_str)
key_stats = json_data["timeseries"]["result"][0]
if k not in key_stats:
# Yahoo website prints N/A, indicates Yahoo lacks necessary data to calculate
v = None
else:
# Select most recent (last) raw value in list:
v = key_stats[k][-1]["reportedValue"]["raw"]
self._info[k] = v
def _get_fundamentals(self, proxy=None):
def cleanup(data):
df = _pd.DataFrame(data).drop(columns=['maxAge'])
for col in df.columns:
df[col] = _np.where(
df[col].astype(str) == '-', _np.nan, df[col])
df.set_index('endDate', inplace=True)
try:
df.index = _pd.to_datetime(df.index, unit='s')
except ValueError:
df.index = _pd.to_datetime(df.index)
df = df.T
df.columns.name = ''
df.index.name = 'Breakdown'
# rename incorrect yahoo key
df.rename(index={'treasuryStock': 'Gains Losses Not Affecting Retained Earnings'}, inplace=True)
df.index = utils.camel2title(df.index)
return df
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
if self._fundamentals:
return
ticker_url = "{}/{}".format(self._scrape_url, self.ticker)
# holders
try:
resp = utils.get_html(ticker_url + '/holders', proxy, self.session)
holders = _pd.read_html(resp)
except Exception:
holders = []
if len(holders) >= 3:
self._major_holders = holders[0]
self._institutional_holders = holders[1]
self._mutualfund_holders = holders[2]
elif len(holders) >= 2:
self._major_holders = holders[0]
self._institutional_holders = holders[1]
elif len(holders) >= 1:
self._major_holders = holders[0]
# self._major_holders = holders[0]
# self._institutional_holders = holders[1]
if self._institutional_holders is not None:
if 'Date Reported' in self._institutional_holders:
self._institutional_holders['Date Reported'] = _pd.to_datetime(
self._institutional_holders['Date Reported'])
if '% Out' in self._institutional_holders:
self._institutional_holders['% Out'] = self._institutional_holders[
'% Out'].str.replace('%', '').astype(float) / 100
if self._mutualfund_holders is not None:
if 'Date Reported' in self._mutualfund_holders:
self._mutualfund_holders['Date Reported'] = _pd.to_datetime(
self._mutualfund_holders['Date Reported'])
if '% Out' in self._mutualfund_holders:
self._mutualfund_holders['% Out'] = self._mutualfund_holders[
'% Out'].str.replace('%', '').astype(float) / 100
self._get_info(proxy)
# get fundamentals
data = utils.get_json(ticker_url + '/financials', proxy, self.session)
# generic patterns
self._earnings = {"yearly": utils.empty_df(), "quarterly": utils.empty_df()}
self._cashflow = {"yearly": utils.empty_df(), "quarterly": utils.empty_df()}
self._balancesheet = {"yearly": utils.empty_df(), "quarterly": utils.empty_df()}
self._financials = {"yearly": utils.empty_df(), "quarterly": utils.empty_df()}
for key in (
(self._cashflow, 'cashflowStatement', 'cashflowStatements'),
(self._balancesheet, 'balanceSheet', 'balanceSheetStatements'),
(self._financials, 'incomeStatement', 'incomeStatementHistory')
):
item = key[1] + 'History'
if isinstance(data.get(item), dict):
try:
key[0]['yearly'] = cleanup(data[item][key[2]])
except Exception:
pass
item = key[1] + 'HistoryQuarterly'
if isinstance(data.get(item), dict):
try:
key[0]['quarterly'] = cleanup(data[item][key[2]])
except Exception:
pass
# earnings
if isinstance(data.get('earnings'), dict):
try:
earnings = data['earnings']['financialsChart']
earnings['financialCurrency'] = 'USD' if 'financialCurrency' not in data['earnings'] else data['earnings']['financialCurrency']
self._earnings['financialCurrency'] = earnings['financialCurrency']
df = _pd.DataFrame(earnings['yearly']).set_index('date')
df.columns = utils.camel2title(df.columns)
df.index.name = 'Year'
self._earnings['yearly'] = df
df = _pd.DataFrame(earnings['quarterly']).set_index('date')
df.columns = utils.camel2title(df.columns)
df.index.name = 'Quarter'
self._earnings['quarterly'] = df
except Exception:
pass
# shares outstanding
try:
# keep only years with non None data
available_shares = [shares_data for shares_data in data['annualBasicAverageShares'] if shares_data]
shares = _pd.DataFrame(available_shares)
shares['Year'] = shares['asOfDate'].agg(lambda x: int(x[:4]))
shares.set_index('Year', inplace=True)
shares.drop(columns=['dataId', 'asOfDate',
'periodType', 'currencyCode'], inplace=True)
shares.rename(
columns={'reportedValue': "BasicShares"}, inplace=True)
self._shares = shares
except Exception:
pass
# Analysis
data = utils.get_json(ticker_url + '/analysis', proxy, self.session)
if isinstance(data.get('earningsTrend'), dict):
try:
analysis = _pd.DataFrame(data['earningsTrend']['trend'])
analysis['endDate'] = _pd.to_datetime(analysis['endDate'])
analysis.set_index('period', inplace=True)
analysis.index = analysis.index.str.upper()
analysis.index.name = 'Period'
analysis.columns = utils.camel2title(analysis.columns)
dict_cols = []
for idx, row in analysis.iterrows():
for colname, colval in row.items():
if isinstance(colval, dict):
dict_cols.append(colname)
for k, v in colval.items():
new_colname = colname + ' ' + \
utils.camel2title([k])[0]
analysis.loc[idx, new_colname] = v
self._analysis = analysis[[
c for c in analysis.columns if c not in dict_cols]]
except Exception:
pass
self._fundamentals = True
def get_recommendations(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_info(proxy)
data = self._recommendations
if as_dict:
return data.to_dict()
return data
def get_calendar(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_info(proxy)
data = self._calendar
if as_dict:
return data.to_dict()
return data
def get_major_holders(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_fundamentals(proxy=proxy)
data = self._major_holders
if as_dict:
return data.to_dict()
return data
def get_institutional_holders(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_fundamentals(proxy=proxy)
data = self._institutional_holders
if data is not None:
if as_dict:
return data.to_dict()
return data
def get_mutualfund_holders(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_fundamentals(proxy=proxy)
data = self._mutualfund_holders
if data is not None:
if as_dict:
return data.to_dict()
return data
def get_info(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_info(proxy)
data = self._info
if as_dict:
return data.to_dict()
return data
def get_sustainability(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_info(proxy)
data = self._sustainability
if as_dict:
return data.to_dict()
return data
def get_earnings(self, proxy=None, as_dict=False, freq="yearly"):
self._get_fundamentals(proxy=proxy)
data = self._earnings[freq]
if as_dict:
dict_data = data.to_dict()
dict_data['financialCurrency'] = 'USD' if 'financialCurrency' not in self._earnings else self._earnings['financialCurrency']
return dict_data
return data
def get_analysis(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_fundamentals(proxy=proxy)
data = self._analysis
if as_dict:
return data.to_dict()
return data
def get_financials(self, proxy=None, as_dict=False, freq="yearly"):
self._get_fundamentals(proxy=proxy)
data = self._financials[freq]
if as_dict:
return data.to_dict()
return data
def get_balancesheet(self, proxy=None, as_dict=False, freq="yearly"):
self._get_fundamentals(proxy=proxy)
data = self._balancesheet[freq]
if as_dict:
return data.to_dict()
return data
def get_balance_sheet(self, proxy=None, as_dict=False, freq="yearly"):
return self.get_balancesheet(proxy, as_dict, freq)
def get_cashflow(self, proxy=None, as_dict=False, freq="yearly"):
self._get_fundamentals(proxy=proxy)
data = self._cashflow[freq]
if as_dict:
return data.to_dict()
return data
def get_dividends(self, proxy=None):
if self._history is None:
self.history(period="max", proxy=proxy)
if self._history is not None and "Dividends" in self._history:
dividends = self._history["Dividends"]
return dividends[dividends != 0]
return []
def get_splits(self, proxy=None):
if self._history is None:
self.history(period="max", proxy=proxy)
if self._history is not None and "Stock Splits" in self._history:
splits = self._history["Stock Splits"]
return splits[splits != 0]
return []
def get_actions(self, proxy=None):
if self._history is None:
self.history(period="max", proxy=proxy)
if self._history is not None and "Dividends" in self._history and "Stock Splits" in self._history:
actions = self._history[["Dividends", "Stock Splits"]]
return actions[actions != 0].dropna(how='all').fillna(0)
return []
def get_shares(self, proxy=None, as_dict=False, *args, **kwargs):
self._get_fundamentals(proxy=proxy)
data = self._shares
if as_dict:
return data.to_dict()
return data
def get_isin(self, proxy=None):
# *** experimental ***
if self._isin is not None:
return self._isin
ticker = self.ticker.upper()
if "-" in ticker or "^" in ticker:
self._isin = '-'
return self._isin
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
q = ticker
self.get_info(proxy=proxy)
if "shortName" in self._info:
q = self._info['shortName']
if q is None:
err_msg = "Cannot map to ISIN code, symbol may be delisted"
print('- %s: %s' % (self.ticker, err_msg))
return None
url = 'https://markets.businessinsider.com/ajax/' \
'SearchController_Suggest?max_results=25&query=%s' \
% urlencode(q)
session = self.session or _requests
data = session.get(
url=url,
proxies=proxy,
headers=utils.user_agent_headers
).text
search_str = '"{}|'.format(ticker)
if search_str not in data:
if q.lower() in data.lower():
search_str = '"|'
if search_str not in data:
self._isin = '-'
return self._isin
else:
self._isin = '-'
return self._isin
self._isin = data.split(search_str)[1].split('"')[0].split('|')[0]
return self._isin
def get_news(self, proxy=None):
if self._news:
return self._news
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
# Getting data from json
url = "{}/v1/finance/search?q={}".format(self._base_url, self.ticker)
session = self.session or _requests
data = session.get(
url=url,
proxies=proxy,
headers=utils.user_agent_headers
)
if "Will be right back" in data.text:
raise RuntimeError("*** YAHOO! FINANCE IS CURRENTLY DOWN! ***\n"
"Our engineers are working quickly to resolve "
"the issue. Thank you for your patience.")
data = data.json()
# parse news
self._news = data.get("news", [])
return self._news
def get_earnings_dates(self, proxy=None):
if self._earnings_dates is not None:
return self._earnings_dates
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
page_size = 100 # YF caps at 100, don't go higher
page_offset = 0
dates = None
while True:
url = "{}/calendar/earnings?symbol={}&offset={}&size={}".format(
_ROOT_URL_, self.ticker, page_offset, page_size)
session = self.session or _requests
data = session.get(
url=url,
proxies=proxy,
headers=utils.user_agent_headers
).text
if "Will be right back" in data:
raise RuntimeError("*** YAHOO! FINANCE IS CURRENTLY DOWN! ***\n"
"Our engineers are working quickly to resolve "
"the issue. Thank you for your patience.")
try:
data = _pd.read_html(data)[0]
except ValueError:
if page_offset == 0:
# Should not fail on first page
if "Showing Earnings for:" in data:
# Actually YF was successful, problem is company doesn't have earnings history
dates = utils.empty_earnings_dates_df()
break
if dates is None:
dates = data
else:
dates = _pd.concat([dates, data], axis=0)
page_offset += page_size
if (dates is None) or dates.shape[0]==0:
err_msg = "No earnings dates found, symbol may be delisted"
print('- %s: %s' % (self.ticker, err_msg))
return None
dates = dates.reset_index(drop=True)
# Drop redundant columns
dates = dates.drop(["Symbol", "Company"], axis=1)
# Convert types
for cn in ["EPS Estimate", "Reported EPS", "Surprise(%)"]:
dates.loc[dates[cn] == '-', cn] = "NaN"
dates[cn] = dates[cn].astype(float)
# Convert % to range 0->1:
dates["Surprise(%)"] *= 0.01
# Parse earnings date string
cn = "Earnings Date"
# - remove AM/PM and timezone from date string
tzinfo = dates[cn].str.extract('([AP]M[a-zA-Z]*)$')
dates[cn] = dates[cn].replace(' [AP]M[a-zA-Z]*$', '', regex=True)
# - split AM/PM from timezone
tzinfo = tzinfo[0].str.extract('([AP]M)([a-zA-Z]*)', expand=True)
tzinfo.columns = ["AM/PM", "TZ"]
# - combine and parse
dates[cn] = dates[cn] + ' ' + tzinfo["AM/PM"]
dates[cn] = _pd.to_datetime(dates[cn], format="%b %d, %Y, %I %p")
# - instead of attempting decoding of ambiguous timezone abbreviation, just use 'info':
dates[cn] = dates[cn].dt.tz_localize(
tz=self.info["exchangeTimezoneName"])
dates = dates.set_index("Earnings Date")
self._earnings_dates = dates
return dates
def get_earnings_history(self, proxy=None):
if self._earnings_history:
return self._earnings_history
# setup proxy in requests format
if proxy is not None:
if isinstance(proxy, dict) and "https" in proxy:
proxy = proxy["https"]
proxy = {"https": proxy}
url = "{}/calendar/earnings?symbol={}".format(_ROOT_URL_, self.ticker)
session = self.session or _requests
data = session.get(
url=url,
proxies=proxy,