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gen_html_yf.py
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gen_html_yf.py
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#!/usr/bin/env python3
# pip3 install yfinance
import os
import sys
import json
import time
from pytz import timezone
from datetime import datetime
import yfinance as yf
def bailmsg(*args, **kwargs):
print(*args, file=sys.stderr, **kwargs)
exit(1)
def write_to_file(text, filename):
with open(filename, 'w') as f: f.write(text)
def gen_html_table(tbl):
table_name,symbols = tbl.split('=')
symb_list = symbols.split(',')
html = '<table>'
html += '<tr>'
html += f'<th><u>{table_name}</u></th>'
for symb in symb_list:
html += f'<th id={symb}_th><a href=https://finance.yahoo.com/quote/{symb}>{symb}</a></th>'
html += '</tr>'
html += '<tr>'
html += '<td>$</td>'
for symb in symb_list:
html += f'<td id={symb}_currentPrice></td>'
html += '</tr>'
html += '<tr>'
html += '<td>%</td>'
for symb in symb_list:
html += f'<td id={symb}_move></td>'
html += '</tr>'
html += '<tr>'
html += '<td>Close</td>'
for symb in symb_list:
html += f'<td id={symb}_previousClose></td>'
html += '</tr>'
mc_toggle = os.getenv('DISPLAY_MARKET_CAP')
if (mc_toggle is not None) and (mc_toggle == '1'):
html += '<tr>'
html += '<td>MCap</td>'
for symb in symb_list:
html += f'<td id={symb}_mcap></td>'
html += '</tr>'
fpe_toggle = os.getenv('DISPLAY_FPE_RATIO')
if (fpe_toggle is not None) and (fpe_toggle == '1'):
html += '<tr>'
html += '<td>FPE</td>'
for symb in symb_list:
html += f'<td id={symb}_forwardPE></td>'
html += '</tr>'
pst12_toggle = os.getenv('DISPLAY_PST12_RATIO')
if (pst12_toggle is not None) and (pst12_toggle == '1'):
html += '<tr>'
html += '<td>PST12</td>'
for symb in symb_list:
html += f'<td id={symb}_priceToSalesTrailing12Months></td>'
html += '</tr>'
peg_toggle = os.getenv('DISPLAY_PEG_RATIO')
if (peg_toggle is not None) and (peg_toggle == '1'):
html += '<tr>'
html += '<td>PEG</td>'
for symb in symb_list:
html += f'<td id={symb}_pegRatio></td>'
html += '</tr>'
urls_toggle = os.getenv('OTHER_URLS')
if (urls_toggle is not None) and (urls_toggle == '1'):
html += '<tr>'
html += '<td>URLS</td>'
for symb in symb_list:
html += f'<td><a href=https://finance.yahoo.com/quote/{symb}>YF</a>/<a href=https://gurufocus.com/stock/{symb}>GF</a></td>'
html += '</tr>'
html += '</table>'
html += '</br>'
return html
def gen_html_head(json_update_interval):
html = '<head>'
html += '<title>Stonk Stalker</title>'
if os.getenv('DARKMODE'):
html += '<link rel="stylesheet" href="static/dashboard-dark.css">'
else:
html += '<link rel="stylesheet" href="static/dashboard.css">'
html += '<script src="static/jquery-3.7.0.min.js"></script>'
html += '<script src="static/symbols.js"></script>'
html += '<script>$(document).ready(function(){ time_init(); });</script>'
html += '<script>$(document).ready(function(){ symbol_init(' + json_update_interval + '); });</script>'
html += '</head>'
return html
def gen_html_body():
html = '<body>'
html += '<center>'
html += '<h2>Stonk Stalker</h2>'
html += '<h3><div id="time"></div></h3>'
for tbl in tables_list:
html += gen_html_table(tbl)
html += '<a href="https://github.com/Fullaxx/stonk_stalker">Source Code on GitHub</a>'
html += '</center>'
html += '</body>'
return html
def gen_index_html(tables_list, json_update_interval):
html = '<!DOCTYPE html>'
html += '<html lang="en">'
html += gen_html_head(json_update_interval)
html += gen_html_body()
html += '</html>'
write_to_file(html, 'index.html')
def delete_if_exists(stock_d, key):
if key in stock_d:
del stock_d[key]
def load_market_data(symb_list, marketdb):
for symb in symb_list:
symb_data = {}
res = yf.Ticker(symb)
delete_if_exists(res.info, 'companyOfficers')
delete_if_exists(res.info, 'longBusinessSummary')
marketdb[symb] = res.info
market_str = json.dumps(marketdb)
filename = f'market.json'
print(f'Writing {filename} ...')
write_to_file(market_str, filename)
# This function is pretty generic and could use some better logic to determine an active trading session
def trading_is_active():
active = False
tz = timezone('US/Eastern')
now = datetime.now(tz)
day = now.strftime("%a")
hour = int(now.strftime("%H"))
if (day == 'Sun'): return False
if (day == 'Sat'): return False
if ((hour >= 9) and (hour <= 16)):
active = True
return active
if __name__ == '__main__':
wwwdir = os.getenv('WWWDIR')
if wwwdir is not None: os.chdir(wwwdir)
ticker_tables = os.getenv('TICKER_TABLES')
if ticker_tables is None: bailmsg('Set TICKER_TABLES')
json_update_interval = os.getenv('JSON_UPDATE')
if json_update_interval is None: json_update_interval = '1000'
symb_list = []
tables_list = ticker_tables.split(';')
for tbl in tables_list:
symbols = tbl.split('=')[1]
symb_list += symbols.split(',')
marketdb = {}
gen_index_html(tables_list, json_update_interval)
while True:
load_market_data(symb_list, marketdb)
sleep_time = 1 if trading_is_active() else 30
time.sleep(sleep_time)