def getPlotStyle(sequence, default='#aa0000'):
""" getPlotStyle(seq) -> returns sequence.plot_style; builds it if necessary
"""
try:
plotstyle = sequence.plot_style
except (AttributeError, ):
base.set_plot_style(sequence, default)
plotstyle = sequence.plot_style
return plotstyle
def build(symbol_table, **kwds):
""" build(symbol_table) -> build a ticker supervisor with ticker objects
The id+symbol two tuple is used as the key for each ticker object
created. The ticker objects have a data series, but no index or
strategy objects.
"""
new_supervisor = TickerSupervisor()
for id_sym in symbol_table:
tobj = new_supervisor[id_sym] = TechnicalTicker(*id_sym)
for series_key in base.PriceSizeTypes:
tobj.series[series_key] = ser = series.build()
base.set_plot_style(ser, '#0000bb')
return new_supervisor
