Description

Chinese characters lead to line breaks or print repeatedly, because of the characters' width calculated error.

Code

1. use FormatCustomText:

   import progressbar
   import time
   
   
   total = 12
   current = 0
   format_custom_text = progressbar.FormatCustomText(
       '%(progress)6s: ',
       dict(
           progress='进度'
       ),
   )
   bar = progressbar.ProgressBar(
       widgets=[
           format_custom_text,
           progressbar.Bar(),
           ' ',
           progressbar.Counter(),
           ' / {0}'.format(total)
       ],
       max_value=total,
       redirect_stdout=True
   )
   bar.start()
   bar.update(current)
   while current < total:
       current += 1
       bar.update(current)
       time.sleep(0.5)
   bar.finish()

   output:
   

2. use raw text:

   import progressbar
   import time
   
   
   total = 12
   current = 0
   tip = '进度: '
   bar = progressbar.ProgressBar(
       widgets=[
           tip,
           progressbar.Bar(),
           ' ',
           progressbar.Counter(),
           ' / {0}'.format(total)
       ],
       max_value=total,
       redirect_stdout=True
   )
   bar.start()
   bar.update(current)
   while current < total:
       current += 1
       bar.update(current)
       time.sleep(0.5)
   bar.finish()

   output:
   

3. fill length of str with 6(a chinese character's width is 2) by using \0

   import progressbar
   import time
   
   
   total = 12
   current = 0
   tip = '进\0度\0: '
   bar = progressbar.ProgressBar(
       widgets=[
           tip,
           progressbar.Bar(),
           ' ',
           progressbar.Counter(),
           ' / {0}'.format(total)
       ],
       max_value=total,
       redirect_stdout=True
   )
   bar.start()
   bar.update(current)
   while current < total:
       current += 1
       bar.update(current)
       time.sleep(0.5)
   bar.finish()

   output:
   

ps: 3 is the effect i expected.

Versions

• Python version: 3.5.2
• Python distribution/environment: CPython
• Operating System: Ubuntu 16.04 LTS
• Package version: 3.33.2

maybe helpful

wcwidth Python library that measures the width of unicode strings rendered to a terminal