class StockTa(object):
HOST = "www.stockta.com"
PORT = 80
ANALYSIS_PATH = "/cgi-bin/analysis.pl?symb=%s"
THRESHOLD = 5
def __init__(self):
self.site = Site(self.HOST, self.PORT)
self.cache = {}
def get_price_levels(self, symbol):
prices = self.cache.get(symbol)
if prices:
return prices
path = self.ANALYSIS_PATH % (symbol)
raw = self.site.fetch(path)
soup = BeautifulSoup(raw)
try:
summary = soup.body.find("td", text="Last Trade").parent.parent.parent.findAll("tr")[1].findAll("td")
prices = {}
prices['open'] = float(summary[4].string)
prices['close'] = float(summary[1].font.string)
prices['low'] = float(summary[6].string)
prices['high'] = float(summary[5].string)
prices['resist'] = self.find_resist(soup)
prices['support'] = self.find_support(soup)
self.cache[symbol] = prices
return prices
except Exception, e:
print "Failed to get price levels for %s: %s" % (symbol, e)
return {}
class StockChartSignals(object):
HOST = "stockcharts.com"
PORT = 80
MIN_PRICE = 10.0
MIN_VOLUME = 1000000.0
# summary of the signals
SIGNAL_SUMMARY_PAGE = "/def/servlet/SC.scan?s=runreport,predefall"
# interested exchanges
EXCHANGES = ["NASD", "NYSE", "AMEX"]
# each identifies the description of a specific signal
BULL_CANDLES = [
" Bullish Engulfing",
" Piercing Line",
" Morning Star",
" Rising Three Methods",
" Dragonfly Doji",
" Hammer",
"Breakaway Gap Ups",
"Runaway Gap Ups",
]
BEAR_CANDLES = [
" Bearish Engulfing",
" Evening Star",
" Falling Three Methods",
" Gravestone Doji",
" Shooting Star",
"Breakaway Gap Downs",
"Runaway Gap Downs",
]
# below are some other signals available from the site
BULL_SIGNALS = [
"New 52-week Highs",
"Strong Volume Gainers",
"Bullish 50/200-day MA Crossovers",
"Bullish MACD Crossovers",
"Improving Chaikin Money Flow",
"New CCI Buy Signals",
"Parabolic SAR Buy Signals",
"Stocks in a New Uptrend (Aroon)",
"Stocks in a New Uptrend (ADX)",
"Gap Ups",
"Runaway Gap Ups",
" Piercing Line",
" Bullish Harami",
" Dragonfly Doji",
" Hammer",
"P&F Bullish Signal Reversal Alerts",
"P&F Bullish Catapult Alerts",
"P&F Bullish Triangle Alerts",
"Oversold with an Improving RSI",
"Moved Below Lower Bollinger Band",
"Breakaway Gap Ups",
"Island Bottoms",
" Bullish Engulfing",
" Morning Star",
" Three White Soldiers",
]
BEAR_SIGNALS = [
"Overbought with a Declining RSI",
"Moved Above Upper Bollinger Band",
"Runaway Gap Downs",
" Dark Cloud Cover",
" Bearish Harami",
" Filled Black Candles",
"New 52-week Lows",
"Strong Volume Decliners",
"Bearish 50/200-day MA Crossovers",
"Bearish MACD Crossovers",
"Declining Chaikin Money Flow",
"New CCI Sell Signals",
"Parabolic SAR Sell Signals",
"Stocks in a New Downtrend (Aroon)",
"Stocks in a New Downtrend (ADX)",
"Island Tops",
"Breakaway Gap Downs",
" Bearish Engulfing",
" Evening Star",
" Three Black Crows",
" Gravestone Doji",
" Shooting Star",
"P&F Bearish Signal Reversal Alerts",
"P&F Bearish Catapult Alerts",
"P&F Bearish Triangle Alerts",
]
def __init__(self):
self.site = Site(self.HOST, self.PORT)
self.signal_paths = {}
self.bulls = {}
self.bears = {}
def scan(self):
self.load_signal_paths()
self.load_signals(self.BULL_SIGNALS, self.bulls)
self.load_signals(self.BEAR_SIGNALS, self.bears)
def load_signal_paths(self):
print "Start to load signal paths..."
raw = self.site.fetch(self.SIGNAL_SUMMARY_PAGE)
soup = BeautifulSoup(raw)
signal = "N/A"
try:
rows = soup.findAll("tr", {"class":"odd"}) + soup.findAll("tr", {"class":"even"})
for row in rows:
fields = row.findAll("td")
signal = fields[0].string
if signal is not None:
signal_path = fields[6].a['href']
symbol_count = int(fields[6].a.string)
if symbol_count > 0:
self.signal_paths[signal] = signal_path
else:
print "Skip signal %s as its count is ZERO" % (signal)
except Exception, e:
print "Failed processing signal paths %s: %s" % (signal, e)
print "Loaded signal paths"