8000 add a feature to make bar can stay at one line instead always newline · Issue #662 · tqdm/tqdm · GitHub
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NewUserHa opened this issue Jan 24, 2019 · 16 comments
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add a feature to make bar can stay at one line instead always newline #662

NewUserHa opened this issue Jan 24, 2019 · 16 comments
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@casperdcl
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help wanted 🙏 We need you (discussion or implementation) invalid ⛔ Not-an-issue or upstream (not-our-issue) p2-bug-warning ⚠ Visual output bad

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@NewUserHa
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4.29.1
3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] win32
ipython

I have some info needs to be logged and printed. but tqdm will case:

from tqdm import tqdm
import time
for _ in tqdm(range(2)):
  print('a')
  time.sleep(0.5)

  0%|                                                                                            | 0/2 [00:00<?, ?it/s]a
 50%|██████████████████████████████████████████                                          | 1/2 [00:00<00:00,  1.99it/s]a
100%|█████████████████████████████████████████████████████████ ███████████████████████████| 2/2 [00:01<00:00,  1.99it/s]

use tqdm.write:

from tqdm import tqdm
import time
for _ in tqdm(range(2)):
  tqdm.write('a')
  time.sleep(0.5)

a
 50%|██████████████████████████████████████████                               
a
 50%|██████████████████████████████████████████                               
100%|█████████████████████████████████████████████████████████ ███████████████████████████| 2/2 [00:01<00:00,  1.99it/s]

is there a way to archeve:

a
a
 50%|██████████████████████████████████████████                               
100%|█████████████████████████████████████████████████████████ ███████████████████████████| 2/2 [00:01<00:00,  1.99it/s]

or even make there's only one bar last?
thanks
@casperdcl
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looks like a windows issue #556, #200, #499, #454, #307...

you can try replacing tqdm(range(2)) -> tqdm(range(2), ascii=True)

@casperdcl
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also try installing colorama

@casperdcl casperdcl self-assigned this Jan 24, 2019
@casperdcl casperdcl added question/docs ‽ Documentation clarification candidate p2-bug-warning ⚠ Visual output bad and removed p2-bug-warning ⚠ Visual output bad labels Jan 24, 2019
@NewUserHa
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NewUserHa commented Jan 25, 2019 •
edited
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Requirement already satisfied: colorama in c:\program files\python37\lib\site-packages (0.3.9)

from tqdm import tqdm
import time
for _ in tqdm(range(2), ascii=True):
  print('a')
  time.sleep(0.5)
  0%|                                                                                            | 0/2 [00:00<?, ?it/s]a

 50%|##########################################                                          | 1/2 [00:00<00:00,  1.99it/s]a

100%|####################################################################################| 2/2 [00:01<00:00,  1.99it/s]

and the colns seems like detected more than the actual value, and made there's a empty newline between every bar
ps: the results I posted in my first comment also have this problem in console. but it's ok after copy-paste out

@NewUserHa
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image
I haven't resized the window after opening

@casperdcl
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if you manually set ncols=80 or similar, do you still get this issue?

@NewUserHa
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image
NO

casperdcl added a commit that referenced this issue Jan 25, 2019
@casperdcl
try to fix #662 windows ncols again
4b36f69
@casperdcl
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does this fix your issue?

pip install -e git+https://github.com/tqdm/tqdm.git@win_fix#egg=tqdm

and then

from tqdm import tqdm
import time
for _ in tqdm(range(2)):
  tqdm.write('a')
  time.sleep(0.5)

@NewUserHa
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image

@NewUserHa
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NewUserHa commented Jan 26, 2019 •
edited
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image
did it work for you?

@casperdcl
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casperdcl commented Jan 26, 2019 •
edited
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I think you need to use both ascii=True and tqdm.write():

from tqdm import tqdm
import time
for _ in tqdm(range(2), ascii=True):
  tqdm.write('a')
  time.sleep(0.5)

Let me know if the above works for the win_fix branch (pip install -e git+https://github.com/tqdm/tqdm.git@win_fix#egg=tqdm) and also for master (pip install -U tqdm)

@NewUserHa
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winfix:
image

master just installed few second ago:
image
master also work for cmd and powershell. (but didn't do test with winfix.)

@NewUserHa
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NewUserHa commented Jan 27, 2019 •
edited
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master:
image
can consider reduce default ncols detected on windows and fix above too?

can also fix the behavior with default print function?
OR
making tqdm.write can input numbers like print so we can use print=tqdm.write?

@casperdcl casperdcl mentioned this issue May 9, 2019
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@casperdcl
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duplicate of #454 #499 #556

@casperdcl casperdcl added p2-bug-warning ⚠ Visual output bad help wanted 🙏 We need you (discussion or implementation) invalid ⛔ Not-an-issue or upstream (not-our-issue) and removed question/docs ‽ Documentation clarification candidate labels May 9, 2019
@NewUserHa
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NewUserHa commented Oct 9, 2019 •
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what about make ascii and ncols default used on windows to avoid this issue at the beginning? @casperdcl
I just verified that 4.36.1 also has this issue

@casperdcl
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yes, part of #815...

@NewUserHa
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thanks!

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