1 # -*- coding: utf-8 -*-

     2 '''

     3 Created on Feb 1, 2012

     4 

     5 @author: ymh

     6 '''

     7 import sys

     8 import codecs #@UnresolvedImport

     9 import math

    10 

    11 def show_progress(current_line, total_line, label, width, writer=None):

    12 

    13     if writer is None:

    14         writer = sys.stdout

    15         if sys.stdout.encoding is not None:

    16             writer = codecs.getwriter(sys.stdout.encoding)(sys.stdout)

    17 

    18     percent = (float(current_line) / float(total_line)) * 100.0

    19 

    20     marks = math.floor(width * (percent / 100.0)) #@UndefinedVariable

    21     spaces = math.floor(width - marks) #@UndefinedVariable

    22 

    23     loader = u'[' + (u'=' * int(marks)) + (u' ' * int(spaces)) + u']'

    24         

    25     s = u"%s %3d%% %*d/%d - %*s\r" % (loader, percent, len(str(total_line)), current_line, total_line, width, label[:width])

    26     

    27     writer.write(s) #takes the header into account

    28     if percent >= 100:

    29         writer.write("\n")

    30     writer.flush()

    31     

    32     return writer