Progressbar.py

#!/usr/bin/python
#coding=utf8
"""
# Author: meetbill
# Created Time : 2015年11月24日 星期二 01时22分05秒

# File Name: Progressbar.py
# Description:

"""
import sys
class Progressbar(object):
    def __init__(self,total,block_char='#'):
        self.finalcount = total
        self.blockcount = 0
        self.block_char = block_char
        self.cur_num = 0

        # print information 
        self.f = sys.stdout
        if not self.finalcount:return
        self.f.write('\n------------------%Progress-----------------------\n')
        self.f.write('    1    2    3    4    5    6    7    8    9    0\n')
        self.f.write('----0----0----0----0----0----0----0----0----0----0\n')

    def progress(self,count):
        count = min(count,self.finalcount)
        if self.finalcount:
            # 返回浮点数x的四舍五入值
            percentcomplete = int(round(100.0*count/self.finalcount))
            if percentcomplete <1:percentcomplete =1
        else:
            percentcomplete=100

        # '/'是传统除法，'//'是浮点数除法，结果四舍五入
        blockcount = int(percentcomplete//2)

        # 保证下次输入的值比下次的值大
        if blockcount <= self.blockcount:
            return
        for i in range(self.blockcount,blockcount):

            self.f.write("%s"% (self.block_char))
        self.f.flush( )
        self.blockcount = blockcount
        if percentcomplete == 100:
            self.f.write("\n")
    def update(self,num):
        """
        update cur_num
        Args:
            num: num
        """
        self.cur_num = self.cur_num + num
        self.progress(self.cur_num)


if __name__ == "__main__":
    from time import sleep
    pb = Progressbar(total=150)
    for count in range(15):
        sleep(0.2)
        pb.update(10)