Extra newlines on prints for non interactive terminals (Jenkins)

We want to add alive-progress to scripts that we run as part of our pipelines. So far it seems to work well but any print we do while in the alive-progress context is getting an empty newline first. This is probably required for the interactive terminals but is distracting in the CI logs.

I wrote this snippet based on your examples:

import time
from alive_progress import alive_bar

print('Pure progress:')
with alive_bar(1000) as bar:
    for i in range(1000):
        time.sleep(0.01)
        bar()

print('With extra output:')
with alive_bar(1000) as bar:
    for i in range(1000):
        if i% 300 == 0:
            print('found')
        time.sleep(0.01)
        bar()

This is the output on our CI system (Jenkins with timestamps enabled):

01:07:58  + python alive.py
01:07:58  Pure progress:
01:08:08  |████████████████████████████████████████| 1000/1000 [100%] in 10.1s (99.39/s)
01:08:08  With extra output:
01:08:08  
on 0: found
01:08:12  
on 300: found
01:08:15  
on 600: found
01:08:17  
on 900: found
01:08:18  |████████████████████████████████████████| 1000/1000 [100%] in 10.1s (99.38/s)

Ideally it should be:

01:07:58  + python alive.py
01:07:58  Pure progress:
01:08:08  |████████████████████████████████████████| 1000/1000 [100%] in 10.1s (99.39/s)
01:08:08  With extra output:
01:08:08  on 0: found
01:08:12  on 300: found
01:08:15  on 600: found
01:08:17  on 900: found
01:08:18  |████████████████████████████████████████| 1000/1000 [100%] in 10.1s (99.38/s)

[rsalmei]

Great! Thank you for the report. So 2.0 will already ship with this! Don’t forget to check often this repo, to switch to the oficial 2.0 version as soon as it is released! I’m just writing the new README now 👍

[sodul]

Perfect now 😃

https://user-images.githubusercontent.com/1504511/119917708-eca21700-bf1b-11eb-8faf-736a48e9553e.mp4