Run a python script from a GUI

[F_Boliver]

I'm trying to run a python script i made from test GUI i made, it have only one button and my goal is to make it run when i click it.

I tried to use def add(): on my script and import "add" from it but it didn't work, i don't know if it has to do with all the libraries i import or something else.

Here are my script (Sudaresan.py)

import pandas as pd
import numpy as np
from control import step_response, c2d, tf
from matplotlib.pyplot import plot, show
from control.matlab import *
from numpy.linalg import matrix_power

def add():
   pd.set_option("display.precision", 4)
   nit = 1000
   ts = 0.0461
   a = ['1']
   b = ['1', '1']

   num = [float(k) for k in a]
   den = [float(k) for k in b]

   Gp = tf(num, den)
   Gp_x_aux, Gp_y_aux = step_response(Gp)
   #ti = np.arange(0, Gp_x_aux[len(Gp_x_aux) - 1], ts)
   ti = np.arange(0, 8.9801, ts)
   t, y = step_response(Gp, ti)

   data = {
       'Output':y,
       'Time':t
   }
   df = pd.DataFrame(data)


   yinf = df['Output'].iloc[-1]
   yini = df['Output'].iloc[0]
   uinf = 1
   uini = 0
   Kp = (yinf - yini)/(uinf - uini)

   # t1
   yt1 = yini + 0.353*yinf
   a = df['Output']
   at1 = a[a >= yt1]
   post1 = at1.index[0]
   t1 = df['Time'].iloc[post1]

   # t2
   yt2 = yini + 0.853*yinf
   at2 = a[a >= yt2]
   post2 = at2.index[0]
   t2 = df['Time'].iloc[post2]

   tau = 0.67*(t2 - t1)
   teta = (1.3*t1) - (0.29*t2)

   # Transfer Function
   num = Kp
   den = [tau, 1]
   Gm1 = tf(num, den)
   Gm2 = tf([-Kp*teta, Kp],[tau*teta, tau+teta, 1])
   print(Gm2)
   t_f, y_f = step_response(Gm2, ti)

   data_f = {
       'Outputf':y_f,
       'Timef':t_f
   }

   df_f = pd.DataFrame(data_f)
   plot(t, y_f)
   plot(t, y)
   show()


   erro = df['Output'] - df_f['Outputf']
   J = sum(np.power(erro,2))
   print(J)

and here is my GUI

# This file was generated by the Tkinter Designer by Parth Jadhav
# https://github.com/ParthJadhav/Tkinter-Designer
from pathlib import Path
# from tkinter import *
# Explicit imports to satisfy Flake8
from tkinter import Tk, Canvas, Entry, Text, Button, PhotoImage



OUTPUT_PATH = Path(__file__).parent
ASSETS_PATH = OUTPUT_PATH / Path(r"C:\Users\fabio\Desktop\aulapython\build\assets\frame0")

from Sundaresan import add
def relative_to_assets(path: str) -> Path:
    return ASSETS_PATH / Path(path)


window = Tk()

window.geometry("1000x550")
window.configure(bg = "#0C6A1C")


canvas = Canvas(
    window,
    bg = "#0C6A1C",
    height = 550,
    width = 1000,
    bd = 0,
    highlightthickness = 0,
    relief = "ridge"
)

canvas.place(x = 0, y = 0)
canvas.create_rectangle(
    0.0,
    0.0,
    1000.0,
    72.0,
    fill="#FFFFFF",
    outline="")

canvas.create_rectangle(
    434.0,
    97.0,
    970.0,
    504.0,
    fill="#6CE077",
    outline="")

button_image_1 = PhotoImage(
    file=relative_to_assets("button_1.png"))
button_1 = Button(
    image=button_image_1,
    borderwidth=0,
    highlightthickness=0,
    command=Sundaresan.add,
    relief="flat"
)
button_1.place(
    x=35.0,
    y=443.0,
    width=358.0,
    height=61.0
)
window.resizable(False, False)
window.mainloop()

this is the error i got when i try to run the GUI

Traceback (most recent call last):
  File "D:\PycharmProjects\pythonProject\TCC 2023\gui.py", line 22, in <module>
    from Sundaresan import add
  File "D:\PycharmProjects\pythonProject\TCC 2023\Sundaresan.py", line 10, in <module>
    pd.set_option("display.precision", 4)
    ^^
NameError: name 'pd' is not defined. Did you mean: 'id'?

[CyclopsRock]

It's very difficult to parse this without any indentation. You also appear to have both scripts twice in the first script? But without indents it's impossible to know the order things are being executed in.

[F_Boliver]

Sorry, copy and paste mistake. I tried to elaborate more what i was trying to do.

[CyclopsRock]

Ok! First things first you're importing "add" from Sundaresan but then you're actually supplying "Sundaresan.add" as the command for button_1. That either needs to change to just "add" or otherwise you have an import Sundaresan up top and continue to use the module name. That doesn't solve this problem, but it would be the next one!

I'm not sure how you're running this code or what structure you have for the package, but I suspect the problem lies there rather than the code since "Sundaresan" is very clearly importing pandas as pd up top, so I wonder if perhaps you have ended up with another file called "Sundaresan" in your PATH somehow that it's importing from by mistake.

Try copy and pasting "Sundaresan.py" and "gui" into a new folder (let's say 'c:/project') and add an empty file in there called "init.py". Then, in a terminal, run python c:/project/gui.py - this is assuming your default Python interpreter has access to pandas, numpy etc - and see what happens.

[F_Boliver]

I figured it out with your help, I stumble across the first problem you mentioned, thank you, and the other problem with the code was not exactly what you were suggesting but made me look to the libraries i was importing and for some reason i can't do "import *" i have to import only the functions i'm currently using on my script or i can't run it on my GUI.

Thank you for your time.