print output on Jenkins

[Pench]

I'm new to python, please help on this requirement.
I wrote a simple python script to execute on Jenkins pipeline.
calling bat script on Jenkins
bat 'test.py'
test.py has:

import os
cmd1 = my_command1
cmd2 = my_command2
print(cmd1)
os.system(cmd1)
print(cmd2)
os.system(cmd2)

output on Jenkins console:

Output:
cmd1 executes
cmd2 executes
print of cmd1
print of cmd2

Issue: print commands output shows always on end results. not an order write in a script.
maybe this basic question, Please help me.

I'm expecting result on Jenkins console is:

Output:
print of cmd1
cmd1 executes
print of cmd2
cmd2 executes

[micseydel]

Python is probably buffering the I/O. If you're using Python 3, you can get around that by passing flush=True.