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ProgressBar erases second-to-last last line of anything printed in the loop #59

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Alseidon opened this issue Jan 20, 2025 · 0 comments

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@Alseidon
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When printing anything in a loop with ProgressBars, I have the impression the new progress bar is printed by erasing the second-to-last line.
Then, any further print erases the last printed line. This has the following results for me:

julia> using ProgressBars

julia> for i in ProgressBar(1:10)
           sleep(0.2)
           println("Line $i--1")
           println("Line $i--2")
           print("Line $i--3")   # we see this line get written and then overwritten
       end
0.0%┣                                                          ┫ 0/10 [00:00<00:00, -0s/it]
Line 1--1
10.0%┣█████▎                                               ┫ 1/10 [00:00<Inf:Inf, InfGs/it]
Line 2--1
20.0%┣███████████▋                                              ┫ 2/10 [00:00<00:03, 2it/s]
Line 3--1
30.0%┣█████████████████▍                                        ┫ 3/10 [00:01<00:02, 3it/s]
Line 4--1
40.0%┣███████████████████████▏                                  ┫ 4/10 [00:01<00:02, 4it/s]
Line 5--1
50.0%┣█████████████████████████████                             ┫ 5/10 [00:01<00:01, 4it/s]
Line 6--1
60.0%┣██████████████████████████████████▉                       ┫ 6/10 [00:01<00:01, 4it/s]
Line 7--1
70.0%┣████████████████████████████████████████▋                 ┫ 7/10 [00:01<00:01, 4it/s]
Line 8--1
80.0%┣██████████████████████████████████████████████▍           ┫ 8/10 [00:02<00:00, 4it/s]
Line 9--1
90.0%┣████████████████████████████████████████████████████▏     ┫ 9/10 [00:02<00:00, 4it/s]
Line 10--1
100.0%┣████████████████████████████████████████████████████████┫ 10/10 [00:02<00:00, 4it/s]
Line 10--3
julia> for i in ProgressBar(1:10)
           sleep(0.2)
           println("Line $i--1")
       end
0.0%┣                                                          ┫ 0/10 [00:00<00:00, -0s/it]
10.0%┣█████▎                                               ┫ 1/10 [00:00<Inf:Inf, InfGs/it]
20.0%┣███████████▋                                              ┫ 2/10 [00:00<00:03, 2it/s]
30.0%┣█████████████████▍                                        ┫ 3/10 [00:01<00:02, 3it/s]
40.0%┣███████████████████████▏                                  ┫ 4/10 [00:01<00:02, 4it/s]
50.0%┣█████████████████████████████                             ┫ 5/10 [00:01<00:01, 4it/s]
60.0%┣██████████████████████████████████▉                       ┫ 6/10 [00:01<00:01, 4it/s]
70.0%┣████████████████████████████████████████▋                 ┫ 7/10 [00:01<00:01, 4it/s]
80.0%┣██████████████████████████████████████████████▍           ┫ 8/10 [00:02<00:00, 4it/s]
90.0%┣████████████████████████████████████████████████████▏     ┫ 9/10 [00:02<00:00, 4it/s]
100.0%┣████████████████████████████████████████████████████████┫ 10/10 [00:02<00:00, 4it/s]

julia> for i in ProgressBar(1:10)
           sleep(0.2)
           print("Line $i--1")
       end
100.0%┣████████████████████████████████████████████████████████┫ 10/10 [00:02<00:00, 4it/s]
Line 10--1

Not sure if it is helpful, but I am using Julia v1.11.2 with ProgressBars v1.5.1 (latest stable to date), on GNOME Terminal 3.44.0.

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