This is a package of helper classes and libraries.
$ pip install pyfxgit
from pyfxgit.ChartCls import ChartCls
Note: Variable data is of type DataFrame that consists of columns ['Open', 'High', 'Low', 'Close', 'Dbs', 'DbsMa'].
chart = ChartCls(data, intSub=2)
chart.BuildOscillator(1, data['Dbs'], intUpper=3, intLower=-3, strTitle="Dbs")
chart.BuildOscillator(0, data['DbsMa'], intUpper=3.75, intLower=-3.75, strTitle="DbsMa")
lstTag = chart.BuildOscillatorTag(data, 'DbsMa', 3.75)
chart.MainAddSpan(data['Tag'], lstTag[lstTag>0], 0.2, 'red')
chart.MainAddSpan(data['Tag'], lstTag[lstTag<0], 0.2, 'green')
chart.BuildMain(strTitle="SPY")
chart.save("Dbs")