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Create Date-difference-calculator.py
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‎41-Date-difference-calculator/Date-difference-calculator.py‎

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import sys
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import os
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import tkinter as tk
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from tkinter import messagebox
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from tkcalendar import DateEntry
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from dateutil.relativedelta import relativedelta
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# =========================
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# THEME
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# =========================
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APP_BG = "#121212"
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PANEL_BG = "#1F1F1F"
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BTN_BG = "#2C2C2C"
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ACCENT = "#FF6F61"
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TEXT_CLR = "#E0E0E0"
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SUBTEXT_CLR = "#AAAAAA"
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FONT = ("Segoe UI", 11)
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# =========================
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# RESOURCE PATH
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# =========================
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def resource_path(file_name):
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base_path = getattr(sys, "_MEIPASS", os.path.dirname(os.path.abspath(__file__)))
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return os.path.join(base_path, file_name)
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# =========================
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# DATE LOGIC (CALENDAR-ACCURATE)
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# =========================
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def calculate_exact_difference(d1, d2):
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if d2 < d1:
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d1, d2 = d2, d1
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delta = relativedelta(d2, d1)
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total_days = (d2 - d1).days
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return {
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"Years": delta.years,
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"Months": delta.months,
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"Days": delta.days,
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"Total Days": total_days
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}
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# =========================
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# APP
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# =========================
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class DateDifferenceCalculator:
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def __init__(self, root):
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self.root = root
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root.title("MateTools – Date Difference Calculator")
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root.geometry("1000x520")
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root.configure(bg=APP_BG)
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root.resizable(False, False)
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# =========================
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# LEFT PANEL
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# =========================
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left = tk.Frame(root, bg=PANEL_BG, width=420)
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left.pack(side="left", fill="y")
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# =========================
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# LEFT HEADER
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# =========================
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header = tk.Frame(left, bg=PANEL_BG)
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header.pack(fill="x", padx=16, pady=(18, 10))
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tk.Label(
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header,
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text="MateTools",
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bg=PANEL_BG,
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fg=ACCENT,
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font=("Segoe UI", 20, "bold")
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).pack(side="left")
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# Divider
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tk.Frame(left, bg=ACCENT, height=2).pack(fill="x", padx=16, pady=(0, 14))
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# =========================
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# SUB TOOL TITLE (LEFT)
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# =========================
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tk.Label(
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left,
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text="Date Difference Calculator",
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bg=PANEL_BG,
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fg=TEXT_CLR,
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font=("Segoe UI", 14, "bold")
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).pack(anchor="w", padx=16, pady=(0, 2))
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tk.Label(
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left,
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text="Calendar-accurate years, months, and days",
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bg=PANEL_BG,
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fg=SUBTEXT_CLR,
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font=("Segoe UI", 10)
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).pack(anchor="w", padx=16, pady=(0, 16))
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tk.Frame(left, bg=BTN_BG, height=1).pack(fill="x", padx=16, pady=(0, 16))
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# =========================
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# DATE INPUTS
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# =========================
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tk.Label(
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left,
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text="Select Dates",
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bg=PANEL_BG,
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fg=TEXT_CLR,
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font=("Segoe UI", 12, "bold")
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).pack(anchor="w", padx=16, pady=(0, 6))
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self.date1 = DateEntry(
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left,
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background=BTN_BG,
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foreground=TEXT_CLR,
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borderwidth=0,
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font=FONT,
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date_pattern="yyyy-mm-dd"
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)
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self.date1.pack(fill="x", padx=16, pady=8)
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self.date2 = DateEntry(
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left,
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background=BTN_BG,
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foreground=TEXT_CLR,
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borderwidth=0,
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font=FONT,
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date_pattern="yyyy-mm-dd"
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)
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self.date2.pack(fill="x", padx=16, pady=8)
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# =========================
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# BUTTONS
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# =========================
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btn_frame = tk.Frame(left, bg=PANEL_BG)
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btn_frame.pack(fill="x", padx=16, pady=16)
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def make_btn(text, cmd, color=BTN_BG):
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return tk.Button(
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btn_frame,
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text=text,
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command=cmd,
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bg=color,
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fg="white",
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font=("Segoe UI", 11, "bold"),
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relief="flat",
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height=2,
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width=18
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)
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make_btn("Calculate", self.calculate).pack(side="left", expand=True, padx=4)
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make_btn("About", self.show_about, ACCENT).pack(side="left", expand=True, padx=4)
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# =========================
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# RIGHT PANEL
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# =========================
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right = tk.Frame(root, bg=APP_BG)
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right.pack(side="right", fill="both", expand=True)
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# =========================
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# STATS CARD
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# =========================
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stats_card = tk.Frame(right, bg=PANEL_BG)
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stats_card.pack(padx=30, pady=40, fill="both", expand=True)
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tk.Label(
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stats_card,
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text="Exact Date Difference",
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bg=PANEL_BG,
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fg=TEXT_CLR,
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font=("Segoe UI", 14, "bold")
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).pack(pady=(20, 10))
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self.stats = {}
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for label in ["Years", "Months", "Days", "Total Days"]:
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frame = tk.Frame(stats_card, bg=PANEL_BG)
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frame.pack(fill="x", padx=40, pady=6)
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tk.Label(
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frame,
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text=label,
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bg=PANEL_BG,
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fg=SUBTEXT_CLR,
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font=("Segoe UI", 11)
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).pack(side="left")
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value = tk.Label(
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frame,
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text="0",
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bg=PANEL_BG,
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fg="white",
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font=("Segoe UI", 12, "bold")
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)
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value.pack(side="right")
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self.stats[label] = value
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# =========================
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# METHODS
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# =========================
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def calculate(self):
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d1 = self.date1.get_date()
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d2 = self.date2.get_date()
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result = calculate_exact_difference(d1, d2)
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for key, value in result.items():
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self.stats[key].config(text=str(value))
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def show_about(self):
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messagebox.showinfo(
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"About",
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"MateTools – Date Difference Calculator\n\n"
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"• Calendar picker input\n"
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"• Calendar-accurate calculations\n"
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"• Leap years supported\n\n"
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"Built by MateTools"
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)
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# =========================
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# RUN
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# =========================
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if __name__ == "__main__":
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root = tk.Tk()
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DateDifferenceCalculator(root)
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root.mainloop()

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