Cannot reset if total was initialized as 0 (zero)

[fireattack]

• I have marked all applicable categories:
  • exception-raising bug
  • 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: 4.64.1 3.11.1 (tags/v3.11.1:a7a450f, Dec 6 2022, 19:58:39) [MSC v.1934 64 bit (AMD64)] win32

When a tqdm object is initialized with total=0, reset(total={a number}) no longer works.

STR:

from tqdm import tqdm
import time


bar = tqdm(total=0)

def upload_chunk(chunk_no, chunks):
    size = 1024*1024*5
    if bar:
        bar.desc = f'chunk {chunk_no + 1}/{chunks}'
        bar.reset(total=size)
    def gen():
        offset = 0
        while True:
            if offset < size:
                update_chunk = 1024*1000
                time.sleep(0.1)
                yield 'a'
                offset += update_chunk
                if bar:
                    bar.update(update_chunk)
            else:
                break
    _ = list(gen())

upload_chunk(0, 100)
bar.close()
print('Done!')

[dargudear]

if bar: is evaluated to false because of following definition

    def __bool__(self):
        if self.total is not None:
            return self.total > 0

Instead of checking of bool value of bar check if bar is not None in your code.

[fireattack]

Wow, thanks! That explains it.

My bad for not catching that it never actually reaches bar.reset.

Again, thanks for the help.