Issue with hex colour in VS Code terminal

[EmidioStani]

• I have marked all applicable categories:
  • visual output bug
• I have visited the [source website], and in particular
  read the [known issues]
• I have searched through the [issue tracker] for duplicates
• I have mentioned version numbers, operating system and
  environment, where applicable:

  import tqdm, sys
  print(tqdm.__version__, sys.version, sys.platform)

4.62.3 3.9.8 (tags/v3.9.8:bb3fdcf, Nov 5 2021, 20:48:33) [MSC v.1929 64 bit (AMD64)] win32

Hello I am running my python script in the terminal of Visual Studio Code (in dark mode), when I use the predefined colours like (RED, YELLOW, etc.) I can see the progress bar in that colour (see yellow in screenshot) but when I try any hex like #ff0000 or whatever combination I put it is always grey (see below in the screenshot)

[sudhamsugurijala]

Hi @EmidioStani

I tried to reproduce the issue in VS Code (dark mode), but looks like hex color code is working fine.

P.S. I cloned this tqdm repository locally and tested it. I hope it is also alright in the default pip tqdm installation as well.

[EmidioStani]

Thanks for checking this, I wonder what the problem would be

[joshinils]

this should print various colors randomly

#!/usr/bin/env python3
import tqdm, time, random, colorsys

def hsv_to_rgb(h, s, v):
    r, g, b = colorsys.hsv_to_rgb(h, s, v)
    return f"#{hex(int(r*255))[2:].rjust(2,'0')}{hex(int(g*255))[2:].rjust(2,'0')}{hex(int(b*255))[2:].rjust(2,'0')}"


while True:
    total = 360
    pbar = tqdm.tqdm(total=total)
    s, v = random.random(), random.random()
    for h in range(total):
        pbar.update()
        pbar.colour = hsv_to_rgb(h / 360, s, v)
        pbar.refresh()
        time.sleep(1 / total)

my system info;

4.60.0 3.8.10 (default, Nov 26 2021, 20:14:08) 
[GCC 9.3.0] linux

and info for code --version

1.64.2
f80445acd5a3dadef24aa209168452a3d97cc326
x64

but i did have some issues with this skipping lines up and down, and even a runtime error:

100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 360/360 [00:03<00:00, 114.02it/s]
100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 360/360 [00:02<00:00, 176.39it/s]
Exception in thread Thread-1:█████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 360/360 [00:01<00:00, 323.08it/s]
Traceback (most recent call last):████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 360/360 [00:01<00:00, 324.86it/s]
  File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 360/360 [00:01<00:00, 322.13it/s]
100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 360/360 [00:01<00:00, 323.49it/s    self.run()████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████▏                                    | 299/360 [00:00<00:00, 322.75it/s]
  File "/home/niels/.local/lib/python3.8/site-packages/tqdm/_monitor.py", line 69, in run
    instances = self.get_instances()
  File "/home/niels/.local/lib/python3.8/site-packages/tqdm/_monitor.py", line 49, in get_instances
    return [i for i in self.tqdm_cls._instances.copy()
  File "/usr/lib/python3.8/_weakrefset.py", line 92, in copy
    return self.__class__(self)
  File "/usr/lib/python3.8/_weakrefset.py", line 50, in __init__
    self.update(data)
  File "/usr/lib/python3.8/_weakrefset.py", line 119, in update
    for element in other:
  File "/usr/lib/python3.8/_weakrefset.py", line 60, in __iter__
    for itemref in self.data:
RuntimeError: Set changed size during iteration

[sudhamsugurijala]

Hi @joshinils
I added pbar.close() after the for loop and put pbar.update() after setting pbar.colour as shown below:

#!/usr/bin/env python3
import tqdm, time, random, colorsys

def hsv_to_rgb(h, s, v):
    r, g, b = colorsys.hsv_to_rgb(h, s, v)
    return f"#{hex(int(r*255))[2:].rjust(2,'0')}{hex(int(g*255))[2:].rjust(2,'0')}{hex(int(b*255))[2:].rjust(2,'0')}"

while True:
    total = 360
    pbar = tqdm.tqdm(total=total)
    s, v = random.random(), random.random()
    for h in range(total):
        pbar.colour = hsv_to_rgb(h / total, s, v) # Changed 360 to total
        pbar.update()
        pbar.refresh()
        time.sleep(1 / total)
    pbar.close()

The bars kept changing colours (not captured by this picture) and i got an output with no errors -

Was this the intended output?

I cloned this tqdm repository and checked your code. I hope it is the same with the standard pip tqdm installation.

[joshinils]

I added pbar.close() after the for loop and put pbar.update() after setting pbar.colour as shown below:

Aha, I forgot close(), that indeed was the issue.

The bars kept changing colours (not captured by this picture) and i got an output with no errors
Was this the intended output?

Yes, I wanted it to loop through as many colours as possible, so each bar goes through all hues with random saturation and value, but I guess that's not necessary to check for colour support.

I cloned this tqdm repository and checked your code. I hope it is the same with the standard pip tqdm installation.

I am using the standard pip install

[casperdcl]

Closing this as it doesn't seem to be reproducible.

[casperdcl]

Also since v4.63.2 (thanks to #1309) you should be able to use the notebook version in VSCode (tqdm.auto/tqdm.notebook)