def pixel_to_lonlat(self, px, zoom):
        if len(px) != 2:
            raise TypeError('Pixel should be a sequence of two elements.')

        # Getting the number of pixels for the given zoom level.
        npix = self._npix[zoom]

        # Calculating the longitude value, using the degrees per pixel.
        lon = (px[0] - npix) / self._degpp[zoom]

        # Calculating the latitude value.
        lat = RTOD * ( 2 * atan(exp((px[1] - npix)/ (-1.0 * self._radpp[zoom]))) - 0.5 * pi)

        # Returning the longitude, latitude coordinate pair.
        return (lon, lat)
Set the readline word delimiters for tab-completion.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/contrib/gis/maps/google/zoom.py/GoogleZoom.pixel_to_lonlat--crossover with--dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/site-packages/pyreadline/rlmain.py/Readline.set_completer_delims