howto fall back to regular tkinter when non supported OS encountered?

[Free-Radical]

Hi, I'm writing a cross platform app that runs on Windows, Mac and Linux. In Linux, CustomTkinter ends up looking really bad, as expected.

What would be an elegant way to handle "fall back" to regular tkinter or similar, when a non-supported OS is encountered?

[Akascape]

@Free-Radical In that case you have to make two separate programs (one in tkinter and another in customtkinter).
Then you can use this to identify the OS:

import sys
if sys.platform.startswith("linux"):
   Normal_Tkinter() ##Link this to your normal tkinter app class/function.

You can also combine both programs in one file.

[Free-Radical]

My apologies but I'm a noob: how do I "link" this to my tkinter function?
I'm using the following type of calls (not using OOP)

root_window = customtkinter.CTk()
PREFS_WDW = customtkinter.CTkToplevel(root_window)

Or are you implying writing 2 separate series of commands to call normal tkinter and CustomTkinter as required

[RutgerLit]

In Linux, CustomTkinter ends up looking really bad, as expected.

Could you tell me why this is expected? I was thinking about making a Linux version as well but this might stop me from doing that.

[Free-Radical]

I've put an image below how the official sample code looks, but I figured it wouldn't look good since it was custom designed to look good for Windows/Mac and not Linux?

[TomSchimansky]

What is your problem on Linux? Linux is supported by CustomTkinter. I can not test it on other distributions than Ubuntu and Kali Linux, but for me it always worked.

[Free-Radical]

Good to hear, hopefully i'm doing something wrong (which is very possible , since I'm a noob at this), here's how a window looks using your code in Linux Mint 21 Cinnamon (looks fine in Windows/Mac)

[TomSchimansky]

Can you also show me what this prints for you.

import sys
print(sys.platform)

[Free-Radical]

Python 3.10.6 (main, Oct  7 2022, 20:19:58) [GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

>>> import sys
>>> print(sys.platform)
linux

[Free-Radical]

Do you have a folder .fonts/ in your home directory? And are there font files in there? There must be a file CustomTkinter_shapes_font.otf in order for the rendering to work.

YES file exists

[Free-Radical]

Maybe you need to update your font cache, I found this command fc-cache -fv but for me this was never necessary.

executed command , it succeeded.
fired up app again (without reboot ,etc) SAME RESULT

[Free-Radical]

same results after reboot as well @TomSchimansky

[Akascape]

@Free-Radical

I'm using the following type of calls (not using OOP)
Or are you implying writing 2 separate series of commands to call normal tkinter and CustomTkinter as required

Here is an Example

import tkinter
import customtkinter
import sys
import tkinter.ttk as ttk

customtkinter.set_appearance_mode("dark")
customtkinter.set_default_color_theme("Light")  

def CTK_App():
    
    app = customtkinter.CTk()
    app.geometry("400x540")
    app.title("CustomTkinter simple_example.py")


    def button_function():
        print("Button click", label_1.text_label.cget("text"))


    def slider_function(value):
        progressbar_1.set(value)


    def check_box_function():
        print("checkbox_1:", checkbox_1.get())


    y_padding = 13

    frame_1 = customtkinter.CTkFrame(master=app, corner_radius=15)
    frame_1.pack(pady=20, padx=60, fill="both", expand=True)

    label_1 = customtkinter.CTkLabel(master=frame_1,text_font="caltons", justify=tkinter.LEFT)
    label_1.pack(pady=y_padding, padx=10)

    progressbar_1 = customtkinter.CTkProgressBar(master=frame_1)
    progressbar_1.pack(pady=y_padding, padx=10)

    button_1 = customtkinter.CTkButton(master=frame_1, corner_radius=8, command=button_function)
    button_1.pack(pady=y_padding, padx=10)

    slider_1 = customtkinter.CTkSlider(master=frame_1, command=slider_function, from_=0, to=1)
    slider_1.pack(pady=y_padding, padx=10)
    slider_1.set(0.5)

    entry_1 = customtkinter.CTkEntry(master=frame_1, placeholder_text="CTkEntry")
    entry_1.pack(pady=y_padding, padx=10)

    checkbox_1 = customtkinter.CTkCheckBox(master=frame_1, command=check_box_function)
    checkbox_1.pack(pady=y_padding, padx=10)

    radiobutton_var = tkinter.IntVar(value=1)

    radiobutton_1 = customtkinter.CTkRadioButton(master=frame_1, variable=radiobutton_var, value=1)
    radiobutton_1.pack(pady=y_padding, padx=10)

    radiobutton_2 = customtkinter.CTkRadioButton(master=frame_1, variable=radiobutton_var, value=2)
    radiobutton_2.pack(pady=y_padding, padx=10)

    s_var = tkinter.StringVar(value="on")

    switch_1 = customtkinter.CTkSwitch(master=frame_1)
    switch_1.pack(pady=y_padding, padx=10)

    optionmenu_1 = customtkinter.CTkComboBox(master=frame_1, values=["option 1", "option 2", "number 42","option 1", "option 2", "number 42","option 1", "option 2", "number 42"])
    optionmenu_1.pack(pady=y_padding, padx=10)

    app.mainloop()

def Normal_Tkinter():
    
    app = tkinter.Tk()
    app.geometry("400x400")
    app.title("Standard Tkinter Test")


    def button_function():
        print("button pressed")


    def slider_function(value):
        progressbar_1["value"] = value


    s = ttk.Style()
    s.configure("TRadiobutton", fg="red")

    y_padding = 6

    frame_1 = tkinter.Frame(master=app, width=300, height=260, bg="lightgray")
    frame_1.pack(padx=60, pady=20, fill="both", expand=True)

    label_1 = tkinter.Label(master=frame_1, text="Label", bg="lightgray")
    label_1.pack(pady=y_padding, padx=10)

    progressbar_1 = ttk.Progressbar(master=frame_1, style='black.Horizontal.TProgressbar', length=150)
    progressbar_1.pack(pady=y_padding, padx=10)
    progressbar_1["value"] = 50

    button_1 = tkinter.Button(master=frame_1, command=button_function, text="Button", highlightbackground="lightgray")
    button_1.pack(pady=y_padding, padx=10)

    slider_1 = tkinter.Scale(master=frame_1, command=slider_function, orient="horizontal", bg="lightgray", length=150)
    slider_1.pack(pady=y_padding, padx=10)

    entry_1 = tkinter.Entry(master=frame_1, highlightbackground="lightgray", width=10)
    entry_1.pack(pady=y_padding, padx=10)

    checkbox_1 = tkinter.Checkbutton(master=frame_1, bg=frame_1.cget("bg"), text="CheckButton")
    checkbox_1.pack(pady=y_padding, padx=10)

    radiobutton_var = tkinter.IntVar()

    radiobutton_1 = ttk.Radiobutton(master=frame_1, variable=radiobutton_var, value=1, text="Radiobutton")
    radiobutton_1.pack(pady=y_padding, padx=10)

    radiobutton_2 = ttk.Radiobutton(master=frame_1, variable=radiobutton_var, value=2, text="Radiobutton")
    radiobutton_2.pack(pady=y_padding, padx=10)

    combobox_1 = ttk.Combobox(master=frame_1, values=["option 1", "option 2", "number 42","option 1", "option 2", "number 42","option 1", "option 2", "number 42"])
    combobox_1.pack(pady=y_padding, padx=10)

    app.mainloop()
    
if __name__ == "__main__":
    
    # Identify the OS
    if sys.platform.startswith("linux"):
        Normal_Tkinter() # This will link it to the normal tkinter class app
    else:
        CTK_App()

[avalon60]

I do most of my personal project work on Linux Mint. I have never encountered that kind of problem with CustomTkinter.

[Free-Radical]

@Akascape Thank you!

[Free-Radical]

I do most of my personal project work on Linux Mint. I have never encountered that kind of problem with CustomTkinter.

@avalon60 do you mind sharing your system environment, kernel, python,etc to compare?