Empty progress bar with np.arange()

[CleHou]

Hello,

I'm using the tqdm library for a standard progression bar on a np.arange.
However, before the normal progress bar I get an empty progress bar the shows and I found no way to see where it is from.

The code has this general shape:

def function_1 (parameter_A):
    list = numpy.arrange(0,20)
    for a_value in tqdm.tqdm(list):
        #do_something_with_parameter_A

def function_2(Parameter_A):
    for k in range(30):
        print('Tree', k, '/30')
        function_1 (parameter_A)

Is there something that should be done with the array?
Thank you!

[casperdcl]

You should use tqdm.write(str()) instead of print()

[CleHou]

Thank you for your answer but I have tried that before and it didn't work.
But by further investigating the issue, I've definitely narrowed it down to that string. I was wrong by supposing that the issue came from the bumpy array.

def function_1 (parameter_A):
    list = numpy.arrange(0,20)
    for a_value in tqdm.tqdm(list):
        #do_something_with_parameter_A

def function_2 (Parameter_A):
    for k in range(30):
        tqdm.tqdm.write(str('Tree', k, '/30'))
        function_1 (parameter_A)

[casperdcl]

Ah k is mutil-line str... that's currently not supported neatly by write.

[CleHou]

Ok thanks!

[casperdcl]

duplicate of #737

[casperdcl]

Actually no, the screenshot doesn't look like you ran the code. Will have to investigate more.

[CleHou]

I omitted, for simplicity, the full print.
The other part of the came from: sklearn.metrics.confusion_matrix()

[casperdcl]

ok so #737 indeed