I would like to use tqdm to generate a simple status updating line, basically creating a progress bar with only {desc} at line 0,

prog = tqdm(desc=msg, position=0, bar_format='{desc}')

and update it from time to time with

prog.set_description(updated_desc)
prog.update(1)

However prog would print out time etc, despite of the parameter bar_format='{desc}'. Digging through the code I found that parameter bar_format is not used when there is no total so I cannot control the output in this case.

I can get around of this problem by setting a fake total, e.g.,

prog = tqdm(desc=msg, position=0, total=10000, bar_format='{desc}')

but this might be something you would like to fix.