Python print function

Question

Hello,
Do you know why I have to use print function for simple math calculations or outputting variable values in Sololearn playground or other mobile apps for programming?
For example:
print(1 + 2)
a = 3
print(a)

While doing the same on PC for example in Jupiter or IDLE, I can do the same without print.
For example:
1+2
a

Answer 1

Ruslan Guliyev ,

there are 2 modes to work with interpreters:

> direct interactive mode, like as you described. but this is limited to only one or a few lines of code at a time. this is not supported by sololearn playground
> editor / ide mode. you can write complete codes and then run them. codes can be saved, re-loaded and run again

some mobile apps also have a direct interactive mode like pydroid

Answer 2

Lothar, thank you!