tenumerate ignores total parameter

[udalrich]

• I have marked all applicable categories:
  • exception-raising bug
  • visual output bug
  • documentation request (i.e. "X is missing from the documentation." If instead I want to ask "how to use X?" I understand StackOverflow#tqdm is more appropriate)
  • new feature request
• 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)
  4.48.0 3.7.7 (default, Mar 10 2020, 15:43:03) 
  [Clang 11.0.0 (clang-1100.0.33.17)] darwin

tenumerate does not use the total parameter when it cannot figure out the length of the iterable.

This script shows the difference in output:

from tqdm.contrib import tenumerate
from tqdm import tqdm
import time

count=20
for n in tenumerate(zip(range(count), range(count)),
                    desc='Tenum Without total'):
    time.sleep(0.1)

for n in tenumerate(zip(range(count), range(count)),
                    total=count,
                    desc='Tenum With total'):
    time.sleep(0.1)

for n in tqdm(enumerate(zip(range(count), range(count))),
              desc='Tqdm enum Without total'):
    time.sleep(0.1)
for n in tqdm(enumerate(zip(range(count), range(count))),
              total=count,
              desc='Tqdm enum With total'):
    time.sleep(0.1)

The output is:

$ python tenum-bug.py 
Tenum Without total: 20it [00:02,  9.76it/s]
Tenum With total: 20it [00:02,  9.81it/s]
Tqdm enum Without total: 20it [00:02,  9.79it/s]
Tqdm enum With total: 100%|███████████████████████████████████████████████████████████████████| 20/20 [00:02<00:00,  9.71it/s]

The Tenum with total line should have a progress bar, like the Tqdm enum line.