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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def updateAltHistory(self):
        '''Updates the altitude history plot.'''
        self.altHist.append(self.relAlt)
        self.timeHist.append(self.relAltTime)
        
        # Delete entries older than x seconds
        histLim = 10
        currentTime = time.time()
        point = 0
        for i in range(0,len(self.timeHist)):
            if (self.timeHist[i] > (currentTime - 10.0)):
                break
        # Remove old entries
        self.altHist = self.altHist[i:]
        self.timeHist = self.timeHist[i:]
        
        # Transform Data
        x = []
        y = []
        tmin = min(self.timeHist)
        tmax = max(self.timeHist)
        x1 = self.leftPos+(self.vertSize/10.0)
        y1 = -0.25
        altMin = 0
        altMax = max(self.altHist)
        # Keep alt max for whole mission
        if altMax > self.altMax:
            self.altMax = altMax
        else:
            altMax = self.altMax
        if tmax != tmin:
            mx = 0.5/(tmax-tmin)
        else:
            mx = 0.0
        if altMax != altMin:
            my = 0.5/(altMax-altMin)
        else:
            my = 0.0
        for t in self.timeHist:
            x.append(mx*(t-tmin)+x1)
        for alt in self.altHist:
            val = my*(alt-altMin)+y1
            # Crop extreme noise
            if val < -0.25:
                val = -0.25
            elif val > 0.25:
                val = 0.25
            y.append(val)
        # Display Plot
        self.altHistRect.set_x(self.leftPos+(self.vertSize/10.0))
        self.altPlot.set_data(x,y)
        self.altMarker.set_data(self.leftPos+(self.vertSize/10.0)+0.5,val)
        self.altText2.set_position((self.leftPos+(4*self.vertSize/10.0)+0.5,val))
        self.altText2.set_size(self.fontSize)
        self.altText2.set_text('%.f m' % self.relAlt)