Amazing-Python-Scripts

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from datetime import datetime
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import tkinter as tk
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import tkinter.messagebox
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import pytz
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# Creating main Window
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window = tk.Tk()
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window.title("Time-Zone Converter")
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window.geometry('480x300')
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# giving the format of datetime
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format = "%Y-%m-%d %H:%M"
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# entry box for all the values
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entry_cur_tz = tk.Entry(window, width=20, font=('arial', 10))
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entry_cur_tz.place(x=20, y=100)
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entry_cnv_tz = tk.Entry(window, width=20, font=('arial', 10))
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entry_cnv_tz.place(x=250, y=100)
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entry_cur_tm = tk.Entry(window, width=20, font=('arial', 10))
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entry_cur_tm.place(x=20, y=170)
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entry_cnv_tm = tk.Entry(window, width=20, font=('arial', 10))
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entry_cnv_tm.place(x=250, y=170)
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# All Entry Box configuration
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def on_focus_in_ent_cur_tz(event):
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    if entry_cur_tz.get() == 'Eg. Asia/Kolkata':
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        entry_cur_tz.delete(0, "end")
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        entry_cur_tz.insert(0, '')
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        entry_cur_tz.config(fg='black')
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def on_focus_out_ent_cur_tz(event):
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    if entry_cur_tz.get() == '':
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        entry_cur_tz.insert(0, 'Eg. Asia/Kolkata')
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        entry_cur_tz.config(fg='grey')
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entry_cur_tz.insert(0, 'Eg. Asia/Kolkata')
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entry_cur_tz.bind('<FocusIn>', on_focus_in_ent_cur_tz)
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entry_cur_tz.bind('<FocusOut>', on_focus_out_ent_cur_tz)
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entry_cur_tz.config(fg='grey')
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def on_focus_in_ent_cnv_tz(event):
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    if entry_cnv_tz.get() == 'Eg. Australia/Sydney':
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        entry_cnv_tz.delete(0, "end")
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        entry_cnv_tz.insert(0, '')
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        entry_cnv_tz.config(fg='black')
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def on_focus_out_ent_cnv_tz(event):
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    if entry_cnv_tz.get() == '':
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        entry_cnv_tz.insert(0, 'Eg. Australia/Sydney')
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        entry_cnv_tz.config(fg='grey')
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entry_cnv_tz.insert(0, 'Eg. Australia/Sydney')
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entry_cnv_tz.bind('<FocusIn>', on_focus_in_ent_cnv_tz)
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entry_cnv_tz.bind('<FocusOut>', on_focus_out_ent_cnv_tz)
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entry_cnv_tz.config(fg='grey')
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def on_focus_in_ent_cur_tm(event):
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    if entry_cur_tm.get() == "Eg. 2023-06-02 20:01":
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        entry_cur_tm.delete(0, "end")
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        entry_cur_tm.insert(0, '')
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        entry_cur_tm.config(fg='black')
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def on_focus_out_ent_cur_tm(event):
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    if entry_cur_tm.get() == '':
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        entry_cur_tm.insert(0, "Eg. 2023-06-02 20:01")
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        entry_cur_tm.config(fg='grey')
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entry_cur_tm.insert(0, "Eg. 2023-06-02 20:01")
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entry_cur_tm.bind('<FocusIn>', on_focus_in_ent_cur_tm)
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entry_cur_tm.bind('<FocusOut>', on_focus_out_ent_cur_tm)
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entry_cur_tm.config(fg='grey')
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def on_focus_in_ent_cnv_tm(event):
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    if entry_cnv_tm.get() == 'Click convert button':
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        entry_cnv_tm.delete(0, "end")
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        entry_cnv_tm.insert(0, '')
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        entry_cnv_tm.config(fg='black')
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def on_focus_out_ent_cnv_tm(event):
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    if entry_cnv_tm.get() == '':
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        entry_cnv_tm.insert(0, 'Click convert button')
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        entry_cnv_tm.config(fg='grey')
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entry_cnv_tm.insert(0, 'Click convert button')
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entry_cnv_tm.bind('<FocusIn>', on_focus_in_ent_cnv_tm)
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entry_cnv_tm.bind('<FocusOut>', on_focus_out_ent_cnv_tm)
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entry_cnv_tm.bind("<Key>", lambda a: "break")
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entry_cnv_tm.config(fg='grey')
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# All label with text
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title_lbl = tk.Label(master=window, text="Time-Zone Converter",
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                     font=("broadway", 25), bg="black", fg='white')
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title_lbl.place(x=48, y=10)
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cur_tz_lbl = tk.Label(master=window, text="Current timezone name", font=(
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    "Times Roman", 10), fg='black')
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cur_tz_lbl.place(x=16, y=80)
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cnv_tz_lbl = tk.Label(master=window, text="Convert timezone name", font=(
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    "Times Roman", 10), fg='black')
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cnv_tz_lbl.place(x=246, y=80)
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cur_tm_lbl = tk.Label(master=window, text="Current time (YYYY-MM-DD H:M)",
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                      font=("Times Roman", 10), fg='black')
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cur_tm_lbl.place(x=16, y=150)
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cnv_tm_lbl = tk.Label(master=window, text="Converted time (YYYY-MM-DD H:M)",
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                      font=("Times Roman", 10), fg='black')
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cnv_tm_lbl.place(x=246, y=150)
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# Convert button function
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def cnv_time():
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    date_input = True
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    # Check all the data is entered or not
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    if entry_cur_tz.get() == 'Eg. Asia/Kolkata' or entry_cnv_tz.get() == 'Eg. Australia/Sydney' or entry_cur_tm.get() == 'Eg. 2023-06-02 20:01' or entry_cnv_tm == 'Click convert button':
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        tkinter.messagebox.showerror(title="Error", message="Invalid inputs")
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    # Check the date input format
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    elif entry_cur_tm.get() != 'Eg. 2023-06-02 20:01':
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        try:
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            my_timestamp = datetime.strptime(
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                entry_cur_tm.get(), '%Y-%m-%d %H:%M')
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        except ValueError:
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            date_input = False
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            tkinter.messagebox.showerror(
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                title="Error", message="Invalid Date input")
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    # Check if timezone entered is right or wrong and convert the date
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    if entry_cur_tz != 'Eg. Asia/Kolkata' and entry_cnv_tz != 'Eg. Australia/Sydney':
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        try:
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            if date_input == True:
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                date_time = datetime.strptime(
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                    entry_cur_tm.get(), '%Y-%m-%d %H:%M')
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                org_timezone = pytz.timezone(entry_cur_tz.get())
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                new_timezone = pytz.timezone(entry_cnv_tz.get())
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                org_timestamp = org_timezone.localize(date_time)
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                new_timestamp = org_timestamp.astimezone(new_timezone)
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                entry_cnv_tm.delete(0, "end")
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                entry_cnv_tm.config(fg='black')
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                entry_cnv_tm.insert(0, new_timestamp.strftime(format))
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        except pytz.exceptions.UnknownTimeZoneError:
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            tkinter.messagebox.showerror(
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                title="Error", message="Invalid timezone input")
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# Convert Button
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button_cnv = tk.Button(window, text="Convert", width=10, command=cnv_time)
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button_cnv.place(x=20, y=210)
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window.resizable(False, False)
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window.mainloop()
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