TQDM status viewer comment

I wanted to mention another status option. I've been using TQDM in linking.py for a few months now with no issues, it is most help when supplied with the number of frames in the pred_link_df_iter) call. TQDM provides an estimate for time of completion.

The console view during tracking
track: 1%|3 | 11/766 [00:00<00:54, 13.96it/s]C

from tqdm import tqdm

around line 615
def link_df_iter(features, search_range, memory=0,
            neighbor_strategy='KDTree', link_strategy='auto',
            predictor=None, adaptive_stop=None, adaptive_step=0.95,
            diagnostics=False, pos_columns=None,
            t_column=None, hash_size=None, box_size=None,
            verify_integrity=True, retain_index=False, number_of_frames=0):

around line 720
    for labeled_level, source_features, old_index in tqdm(zip(
            labeled_levels, features_forpost, index_iter),
            desc='track',total=number_of_frames):

Start in linking.py at link_df_iter around the referenced lines and review the existing tqdm loop and number_of_frames parameter. Clarify the intended status-viewer behavior, then verify that the completed change provides the requested tracking progress output without disrupting link_df_iter.