How to check if code running is run directly via file or run via importing in some other file in python?

Question

I am trying to make a CLI and GUI for a appliaction in which I am using my CLI to perform task and return string for my GUI and give output.

But problem is when I import my CLI it first takes input as it should when it is run from direct CLI, but I do not want it to take input from CLI when running from GUI.

So, for this is there any way from which I can check if the CLI script is run directly or from CLI or is imported in some file and then being run.

this is an example what I did:

cli.py

print("hello CLI run")
x=input()
def pr(x):
    return("this is what you typed = "+x)
print(pr(x))

gui.py

from tkinter import *
from cli import pr
def sb():
    c=en.get()
    zz=pr(c)
    expression.insert(0,zz)
win=Tk()
lbl=Label(win,text="Hello World")
lbl.pack()
en=Entry(win)
en.pack()
sn=Button(win,height = 2, width = 10,text="submit",command=sb)
sn.pack()
lbl=Label(win,text="Output :")
lbl.pack()
expression=Entry(win)
expression.pack()
win.mainloop()

When I run this this asks me to input in CLI first and then give CLI output and then run the GUI

How do you run this via CLI? – Karim Tabet Aug 13 '18 at 10:41 — Karim Tabet, Aug 13 '18 at 10:41
just usual calling of script using "python3 cli.py" – Avinash Karhana Aug 13 '18 at 10:43 — Avinash Karhana, Aug 13 '18 at 10:43

score 1 · Accepted Answer · edited Aug 13 '18 at 10:49

1

You should add your logic in to main function and then at the bottom of the file add

if __name__ == "__main__":
    # Do some validation
    main()

'main' is the name of the scope in which top-level code executes. A module’s __name__ is set equal to '__main__' when read from standard input, a script, or from an interactive prompt.

https://docs.python.org/3/library/main.html

edited Aug 13 '18 at 10:49

U13-Forward

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answered Aug 13 '18 at 10:45

Povilas

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Thank ! this is the answer I was looking for. – Avinash Karhana Aug 13 '18 at 10:53

score 1 · Answer 2 · answered Aug 13 '18 at 10:49

1

OR to create a class:

`gui.py`:

from tkinter import *
from cli import C
def sb():
    c=en.get()
    zz=C(c).pr()
    expression.insert(0,zz)
win=Tk()
lbl=Label(win,text="Hello World")
lbl.pack()
en=Entry(win)
en.pack()
sn=Button(win,height = 2, width = 10,text="submit",command=sb)
sn.pack()
lbl=Label(win,text="Output :")
lbl.pack()
expression=Entry(win)
expression.pack()
win.mainloop()

`cli.py`:

print("hello CLI run")
class C:
   def __init__(self,x):
      self.x=x
   def pr(self):
      return("this is what you typed = "+self.x)

answered Aug 13 '18 at 10:49

U13-Forward

69,221
14
89
114

Yes this is helpful and this method works, but I didn't wanted to create class, I wanted to differentiate when a file is imported and when its being run directly.Thanx – Avinash Karhana Aug 13 '18 at 10:52
@AvinashKarhana Ok then, Does whatever in the duplicate help? – U13-Forward Aug 13 '18 at 10:53
Yes that explained well. – Avinash Karhana Aug 13 '18 at 10:56

How to check if code running is run directly via file or run via importing in some other file in python?

2 Answers2

OR to create a class:

gui.py:

cli.py:

`gui.py`:

`cli.py`: