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Copilot Lvl 3
Message 1 of 5

Failed to execute script for .exe file generating using pyinstaller

Hello, I recently wrote a program that crops all the images in a directory and then stacks then all together. Then I made a simple GUI for the program which allows the user to input the directories and values. The programs have been able to run fine, but when I go to convert it to a .exe file, it states that it failed to execute the script. I used the code:

pyinstaller -w -F -i "filepath.ico"

The file generates, but opening the file results in the error above. Do I have to do something additional to my code because I added the extra GUI (was able to get .exe to work without the GUI). Should I put the GUI and program in the same file? Also, my program runs fine python, but when its converted to a .exe file, there is always a 10 second delay before it will appear. This happens no matter how large the program is. I think it is due to Windows Defender block at first site. But I followed all the steps to disable it to no avail.

GUI code

from tkinter import *
from tkinter import filedialog
from tkinter import messagebox
from PIL import Image
from natsort import natsorted
import glob
import gc

import RD_program  # .py file containing the program code

# --- functions ---

def inputfile():  # opens prompt to select input folder
    master.inputdirectory = filedialog.askdirectory()

def outputfile():  # opens prompt to select save folder
    master.outputdirectory = filedialog.askdirectory()

def run():  # function to run entire program
    try:  # if user input is incorrect, instead of stopping program, will output error
        coordinates = [int(x1input.get()), int(y1input.get()), int(x2input.get()), int(y2input.get())]
        image_count = int(countinput.get())

        RD_program.process(master.inputdirectory, coordinates, image_count, master.outputdirectory)

    except Exception as ex:
        print('ex:', ex)
        messagebox.showwarning("Warning", "Wrong arguments:\n" + str(ex))

# --- main ---

master = Tk()

master.inputdirectory = None  # default value at start
master.outputdirectory = None  # default value at start

master.title("One Dimensional Reaction Diffusion Program")

header1 = Label(master, text="One Dimensional Reaction Diffusion Program\n"
                             "Created by: Alexander Tang\n")

header1.grid(sticky="N", columnspan=8)
instructions = Label(master, text="Type in the coordinates for the upper left (x1,y1) and bottom right (x2,y2) points:")
instructions.grid(sticky="W", columnspan=8)

x1 = Label(master, text="x1: ")
x1.grid(sticky="E", column=0, row=2)
x1input = Entry(master, width=5)
x1input.grid(sticky="W", column=1, row=2)

y1 = Label(master, text="y1: ")
y1.grid(sticky="E", column=2, row=2)
y1input = Entry(master, width=5)
y1input.grid(sticky="W", column=3, row=2)

x2 = Label(master, text="x2: ")
x2.grid(sticky="E", column=4, row=2)
x2input = Entry(master, width=5)
x2input.grid(sticky="W", column=5, row=2)

y2 = Label(master, text="y2: ")
y2.grid(sticky="E", column=6, row=2)
y2input = Entry(master, width=5)
y2input.grid(sticky="W", column=7, row=2, pady=12)

count = Label(master, text="How many images are being stacked? ")
count.grid(sticky="W", column=0, row=4, columnspan=4)
countinput = Entry(master, width=5)
countinput.grid(stick="W", column=5, row=4, pady=3)

step1 = Label(master, text="1. Select the file location: ")
step1.grid(sticky="W", column=0, row=6, columnspan=4)
step2 = Label(master, text="2. Select the save location: ")
step2.grid(sticky="W", column=0, row=7, columnspan=4)

btn_input = Button(master, text="Input Files", command=inputfile)  # calls the function inputfile
btn_input.grid(column=5, row=6, columnspan=2, pady=6)

btn_output = Button(master, text="Output Location", command=outputfile)  # calls the function outputfile
btn_output.grid(column=5, row=7, columnspan=2)

btn_run = Button(master, text="Run", font="Helvetica, 18", bg="blue", fg="white", command=run)  # calls the function run
btn_run.grid(sticky="S", column=5, row=8, columnspan=2, pady=6)


Program code

from PIL import Image  # for image processing
from natsort import natsorted  # sorting files
import glob  # access files
import gc  # deletes unneeded files
import os  # to be able to access directories

def process(directory, coordinates, image_count, outputdirectory=None):  # function assigning all variables
    x1, y1, x2, y2 = coordinates

    # Generate final image first
    # Width dependent on whether image is horizontal or vertical
    if (y2 - y1) > (x2 - x1):
        width = (y2 - y1)
        height = (x2 - x1)
        width = (x2 - x1)
        height = (y2 - y1)

    # Width is constant, total_height accounts for height above and the total number of images
    total_height = (image_count * height)
    new_im ='RGB', (width, total_height))  # Create a new colored image (RGB)

    # Keep outside of loop, if not, will reset y_offset each time
    # Indicates position of where to paste cropped image
    # Counter used to show progress of program
    y_offset = 0
    counter = 0

    # Accessing all the files using the glob module
    # The function natsorted sorts values the way Windows does
    # os.path.join(directory) opens prompt to choose folder
    # Opens all the files with the variable img in folder
    for filename in natsorted(glob.glob(os.path.join(directory, "*.*"), recursive=True)):
        img =

        # Cropping function
        selected_region = (x1, y1, x2, y2)  # selected region from previous user input
        cropped_region = img.crop(selected_region)  # taking opened image and cropping to selected region
        if (y2 - y1) > (x2 - x1):  # If cropped area is vertical, rotate into horizontal position
            rotated_image = cropped_region.rotate(90, expand=1)  # Expand 1 ensures image isn't cut off while rotating
            rotated_image = cropped_region  # Does nothing if image is horizontal
        img.close()  # Closes the initially opened image

        new_im.paste(rotated_image, (0, y_offset))  # (x,y) indicates which direction to offset in
        y_offset += rotated_image.size[1]  # y_offset (which had position 0) + the height of the image
        counter += 1
        print(counter, " out of ", image_count, "completed.")  # Shows progress of program
        if counter == image_count:  # Will stop program when counter reaches number of images
    final_im = new_im.rotate(180, expand=1)  # stacking goes from top to bottom, rotate images at the end

    if outputdirectory is None:
        outputdirectory = directory, "stacked_image.tiff"), quality=95)

def main():
    # Convert coordinate list into variables
    print("Type in the coordinates for the upper left (x1,y1) and bottom right (x2,y2) points")
    coordinates = list(map(int, input("Separate values with a space (x1 y1 x2 y2): ").strip().split()))[:4]
    image_count = int(input("How many images are being stacked? "))
    print("Generating image...")

    process(directory, coordinates, image_count)

    print("Image completed and can be found in the output folder.")
    input("Press ENTER to close program.")  # prevents prompt from instantly closing

if __name__ == "__main__":  # allows you to run code without GUI
4 Replies
Commander Lvl 2
Message 2 of 5

Re: Failed to execute script for .exe file generating using pyinstaller

Try adding the option "--onefile" to the pyinstaller command. 


Is "" the GUI .py file? If so, pyinstaller should automagically identify that you are referencing "" and include it ... if you use --onefile.

Please follow-up to let us know how you made out. For good karma, mark a reply as the answer if it helped!

Copilot Lvl 3
Message 3 of 5

Re: Failed to execute script for .exe file generating using pyinstaller

Thank you for the reply, is the GUI file. Also, do I simply just add the --onefile before the icon directory

```pyinstaller -w -F --onefile -i "filepath\filename.ico"

Copilot Lvl 2
Message 4 of 5

Re: Failed to execute script for .exe file generating using pyinstaller

I faced same problem. Didn't find any way to solve.

Commander Lvl 2
Message 5 of 5

Re: Failed to execute script for .exe file generating using pyinstaller

An alternative seems to be

Please follow-up to let us know how you made out. For good karma, mark a reply as the answer if it helped!