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class progressBar:
	def __init__(self, minValue = 0, maxValue = 10, totalWidth=12):
		self.progBar = "[]"   # This holds the progress bar string
		self.min = minValue
		self.max = maxValue
		self.span = maxValue - minValue
		self.width = totalWidth
		self.amount = 0       # When amount == max, we are 100% done 
		self.updateAmount(0)  # Build progress bar string

	def updateAmount(self, newAmount = 0):
		if newAmount < self.min: newAmount = self.min
		if newAmount > self.max: newAmount = self.max
		self.amount = newAmount

		# Figure out the new percent done, round to an integer
		diffFromMin = float(self.amount - self.min)
		percentDone = (diffFromMin / float(self.span)) * 100.0
		percentDone = round(percentDone)
		percentDone = int(percentDone)

		# Figure out how many hash bars the percentage should be
		allFull = self.width - 2
		numHashes = (percentDone / 100.0) * allFull
		numHashes = int(round(numHashes))

		# build a progress bar with hashes and spaces
		self.progBar = "[" + '#'*numHashes + ' '*(allFull-numHashes) + "]"

		# figure out where to put the percentage, roughly centered
		percentPlace = (len(self.progBar) / 2) - len(str(percentDone)) 
		percentString = str(percentDone) + "%"

		# slice the percentage into the bar
		self.progBar = self.progBar[0:percentPlace] + percentString + 
               self.progBar[percentPlace+len(percentString):]

	def __str__(self):
		return str(self.progBar)

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zeit/prozent*(100-prozent)

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import time
from progressbar import ProgressBar, Bar, ETA, Percentage, FileTransferSpeed

widgets = [
        Percentage(), ' ', Bar(marker='#',left='[',right=']'),
        ' ', ETA(), ' ', FileTransferSpeed()
        ]

total = 100
progressbar = ProgressBar(widgets=widgets, maxval=total)
progressbar.start()
for i in xrange(total+1):
    progressbar.update(bytes_read)
    time.sleep(1)
progressbar.finish()