rich based progress part doesn't 'complete' cleanly

[GordonMcGregor]

• 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
• [X ] 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)

$ python
import tqdm, sys
print(tqdm.version, sys.version, sys.platform)
Python 3.7.6 (default, Jan 8 2020, 13:42:34)
[Clang 4.0.1 (tags/RELEASE_401/final)] :: Anaconda, Inc. on darwin

When I run a simple test case, comparing rich.progress to tqdm.rich, tqdm rich doesn't print the 'final' result, stopping maybe one update short in most cases. You'll see the rich.progress bar reach and display 100%, but the TQDM case always stops at some iteration before 100% in the display (data is correct)

testcase is:
$ python3 -c "from tqdm.rich import tqdm;from rich.progress import track;a=[n for n in track(range(10000000))];b=[n for n in tqdm(range(10000000))];"

$ python3 -c "from tqdm.rich import tqdm;from rich.progress import track;a=[n for n in track(range(10000000))];b=[n for n in tqdm(range(10000000))];"
Working... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 0:00:00
-c:1: TqdmExperimentalWarning: rich is experimental/alpha
95% ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╸━━━━ 9,474,605/10,000,000 [ 0:00:01 < 0:00:01 , 5,662,501 it/s ]
(base)

[GordonMcGregor]

python3 -c "from tqdm.rich import tqdm;from rich.progress import track;a=[n for n in track(range(10000000))];b=[n for n in tqdm(range(10000000))];print(len(a), len(b))"

to confirm data sizes:

$ python3 -c "from tqdm.rich import tqdm;from rich.progress import track;a=[n for n in track(range(10000000))];b=[n for n in tqdm(range(10000000))];print(len(a), len(b))"
Working... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 0:00:00
-c:1: TqdmExperimentalWarning: rich is experimental/alpha
96% ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╺━━ 9,628,533/10,000,000 [ 0:00:01 < 0:00:01 , 5,442,715 it/s ]
10000000 10000000

[glensc]

I think this is a duplicate of the same problem:

• [tqdm.rich] latest rich breaks the example #1306

[glensc]

@GordonMcGregor what are your tqdm and rich versions?

[glensc]

#1395 merged, this can be closed