def removeBadPixel(self,row,col,reason='unknown'):
     reply = QtGui.QMessageBox.question(self, 'Confirm',
             'Mark pixel (x,y)=({},{}) with tag \'{}\'?'.format(col,row,reason), QtGui.QMessageBox.Yes | 
             QtGui.QMessageBox.No, QtGui.QMessageBox.No)
     if reply == QtGui.QMessageBox.Yes:
         if not self.obs.hotPixFileName is None:
             timeMaskPath = self.obs.hotPixFileName
         else:
             raise AttributeError('obs file does not have a timeMask loaded')
         self.obs.hotPixFile.close()
         removePixel(timeMaskPath=timeMaskPath,pixelRow=row,
                     pixelCol=col,reason=reason)
         self.obsMethod('loadHotPixCalFile',timeMaskPath,reasons=['hot pixel','dead pixel','unknown'])
         print 'pixel (x,y)=({},{}) tagged'.format(col,row)
    for iSeq,obsSeq in enumerate(obsFilenames):
        for iObs,obsPath in enumerate(obsSeq):
            print 'starting',obsPath
            centroidPath = centroidFilenames[iSeq][iObs]
            yGuess,xGuess = centerPixelGuesses[iSeq]
            xyguess = [xGuess,yGuess]
            hotPath = timeMaskFilenames[iSeq][iObs]
            flatPath = flatFilenames[iSeq]
            sunsetDate = sunsetDates[iSeq]
            hotPixels = hotPixelLists[iSeq]
            coldPixels = coldPixelLists[iSeq]
            print coldPixels

            for pixel in hotPixels:
                col,row=pixel
                removePixel(timeMaskPath=hotPath,pixelRow=row,pixelCol=col,reason='manual hot pixel')
#            for pixel in coldPixels:
#                col,row=pixel
#                removePixel(timeMaskPath=hotPath,pixelRow=row,pixelCol=col,reason='manual cold pixel')

#            obs = ObsFile(obsPath)
#            print obsPath,obs.getFromHeader('exptime'),obs
#            obs.loadAllCals(timeMaskPath='')
#            obs.setWvlCutoffs(3000,11000)
#            
#            if bMakeNewHotPix:
#                hp.findHotPixels(obsFile=obs,outputFileName=hotPath,display=False,ds9display=False,fwhm=1.8,boxSize=5, nSigmaHot=4.,timeStep=30.,badTimeBuffer=20.,useRawCounts=False,weighted=True)
#            obs.loadHotPixCalFile(hotPath,switchOnMask=False)
##switchOnHotPixTimeMask
##switchOffHotPixTimeMask
##cc.centroidCalc(obs,centroidRa,centroidDec,guessTime=300,integrationTime=100,secondMaxCountsForDisplay=2000,HA_offset=haOffset,xyapprox=[xGuess,yGuess],outputFileName=centroidPath,usePsfFit=True)