GUI Calculator

GUI_Calculator/GUI_Calculator.py

@@ -0,0 +1,102 @@
+import tkinter as tk
+from tkinter import messagebox
+
+def click_button(value):
+    """Adds the clicked value (number or operator) to the entry field."""
+    current = entry.get()
+
+    if not current and value in '+-*/.':
+        return
+    if current and current[-1] in '+-*/.' and value in '+-*/.':
+        if value in '+-*/':
+            entry.delete(len(current) - 1, tk.END)
+            entry.insert(tk.END, value)
+        elif value == '.':
+            return
+    else:
+        entry.insert(tk.END, value)
+
+def clear():
+    """Clears the entire entry field."""
+    entry.delete(0, tk.END)
+
+def calculate():
+    """Calculates the result of the expression in the entry field."""
+    expression = entry.get()
+    try:
+        result = eval(expression)
+        entry.delete(0, tk.END)
+        entry.insert(0, str(result))
+    except ZeroDivisionError:
+        entry.delete(0, tk.END)
+        entry.insert(0, "Div/0 Error")
+    except Exception as e:
+        entry.delete(0, tk.END)
+        entry.insert(0, "Error")
+root = tk.Tk()
+root.title("Modern Calculator")
+root.geometry("340x450")
+root.resizable(False, False) 
+root.configure(bg="#2c3e50")
+FONT_STYLE = ('Arial', 18, 'bold')
+BG_DEFAULT = '#34495e'
+FG_DEFAULT = 'white'
+BG_OPERATOR = '#e67e22'
+BG_EQUALS = '#27ae60'
+BG_CLEAR = '#e74c3c'
+entry = tk.Entry(
+    root, 
+    width=15, 
+    font=('Arial', 24), 
+    borderwidth=5, 
+    relief="flat", 
+    justify="right",
+    bg="#ecf0f1",
+    fg="#2c3e50"
+)
+entry.grid(row=0, column=0, columnspan=4, padx=10, pady=15, sticky="nsew")
+buttons_data = [
+    ('C', 1, 0, 1, BG_CLEAR, clear),
+    ('/', 1, 3, 1, BG_OPERATOR, lambda: click_button('/')),
+    ('7', 2, 0, 1, BG_DEFAULT, lambda: click_button('7')), 
+    ('8', 2, 1, 1, BG_DEFAULT, lambda: click_button('8')), 
+    ('9', 2, 2, 1, BG_DEFAULT, lambda: click_button('9')), 
+    ('*', 2, 3, 1, BG_OPERATOR, lambda: click_button('*')),
+    ('4', 3, 0, 1, BG_DEFAULT, lambda: click_button('4')), 
+    ('5', 3, 1, 1, BG_DEFAULT, lambda: click_button('5')), 
+    ('6', 3, 2, 1, BG_DEFAULT, lambda: click_button('6')), 
+    ('-', 3, 3, 1, BG_OPERATOR, lambda: click_button('-')),
+    ('1', 4, 0, 1, BG_DEFAULT, lambda: click_button('1')), 
+    ('2', 4, 1, 1, BG_DEFAULT, lambda: click_button('2')), 
+    ('3', 4, 2, 1, BG_DEFAULT, lambda: click_button('3')), 
+    ('+', 4, 3, 1, BG_OPERATOR, lambda: click_button('+')),
+    ('0', 5, 0, 2, BG_DEFAULT, lambda: click_button('0')),
+    ('.', 5, 2, 1, BG_DEFAULT, lambda: click_button('.')), 
+    ('=', 5, 3, 1, BG_EQUALS, calculate),
+]
+for i in range(1, 6):
+    root.grid_rowconfigure(i, weight=1)
+for i in range(4):
+    root.grid_columnconfigure(i, weight=1)
+
+for (text, row, col, colspan, bg_color, command) in buttons_data:
+    btn = tk.Button(
+        root, 
+        text=text, 
+        font=FONT_STYLE, 
+        bg=bg_color, 
+        fg=FG_DEFAULT, 
+        relief="flat",
+        command=command
+    )
+    btn.grid(
+        row=row, 
+        column=col, 
+        columnspan=colspan, 
+        padx=5, 
+        pady=5, 
+        sticky="nsew"
+    )
+    if text == 'C':
+        btn.grid(columnspan=3) 
+root.mainloop()