""" Please note that this a beta version and I'm still working on this code so the program has some known/unknown bugs. There is at least two problems if you're trying to run this on Sololearn. The first one is that you'll get an ModuleNotFoundError since Sololearn doesn't support tkinter and the second error is that the code needs some other files to run (images, csv files). Download installer for exe version here: http://www.mediafire.com/file/b7ec14bh4j1pdnh/CalculatorApp+0.9.1.zip The exe should work only on Windows 32bit and 64bit! version-- beta 0.9.1 * = multiply ** = power (pass two multiply symbols) / = division sqrt = square root """ import tkinter as tk import _tkinter from tkinter import messagebox as mx import tkinter.font # from tkinter import ttk from math import sqrt import re import csv import datetime as dt from PIL import ImageFont # unicode symbols symbol_sqrt = u'\u221a' sym_del_left = u'\u232B' # regex pattern pattern = r'' # menu visibility boolean menu_childframe_widget_visibility = {'main_frame': False, 'calculators_frame': False} menu_update = 0 class CalculatorApp(tk.Tk): def __init__(self, *args, **kwargs): tk.Tk.__init__(self, *args, **kwargs) self.geometry('1200x600') self.minsize(600, 300) self.title('CalculatorApp') tk.Tk.iconbitmap(self, default='CalculatorAppIcon.ico') container = tk.Frame(self) container.pack(side="top", fill="both", expand=True) container.grid_rowconfigure(0, weight=1) container.grid_columnconfigure(0, weight=1) self.frames = {} for F in (UnitConverter, Menu, BetaVersionFrame, CalculatorPage): # CalculatorPage must be the last element self.frame = F(container, self) self.frames[F] = self.frame self.frame.grid(row=0, column=0, sticky="nsew") self.show_frame(BetaVersionFrame) def show_frame(self, cont) -> None: frame = self.frames[cont] frame.tkraise() def start_mainloop_starter(self): self.frame.start_mainloop() class Menu(tk.Frame): def __init__(self, parent, controller): tk.Frame.__init__(self, parent) self.counter = True # menu self.menubar_1 = tk.Frame(self, width=100, height=200, relief='sunken', borderwidth=2, bg='white') self.menubar_1.grid(rowspan=5, sticky=tk.N + tk.S + tk.E + tk.W) self.menu_img = tk.PhotoImage(file='menubar.gif') menu_button = tk.Button(self.menubar_1, image=self.menu_img, command=self.menu_update) menu_button.pack(anchor=tk.NW, fill=tk.X) # menu widgets self.menu_childframe = tk.Frame(self.menubar_1) # calculators_menu self.calculators_frame = tk.Frame(self.menu_childframe) calculators = tk.Button(self.menu_childframe, text='calculators', relief=tk.FLAT, activebackground='white', font='Tahoma', command=self.calculators_update) calculators.pack(fill=tk.X, side=tk.TOP) # calculators_menu tk.Button(self.calculators_frame, text='unit calculator', font='Tahoma', command=lambda: controller.show_frame(UnitConverter)).pack() tk.Button(self.calculators_frame, text='default calculator', font='Tahoma', command=lambda: controller.show_frame(CalculatorPage)).pack() def menu_update(self): global menu_childframe_widget_visibility if self.counter: menu_childframe_widget_visibility = {'main_frame': False, 'calculators_frame': False} self.counter = False if menu_childframe_widget_visibility['main_frame']: self.menu_childframe.pack_forget() menu_childframe_widget_visibility['main_frame'] = False elif menu_childframe_widget_visibility['main_frame'] is False: self.menu_childframe.pack(side=tk.TOP) menu_childframe_widget_visibility['main_frame'] = True def calculators_update(self): global menu_childframe_widget_visibility if menu_childframe_widget_visibility['main_frame']: if menu_childframe_widget_visibility['calculators_frame']: self.calculators_frame.pack_forget() menu_childframe_widget_visibility['calculators_frame'] = False elif menu_childframe_widget_visibility['calculators_frame'] is False: self.calculators_frame.pack() menu_childframe_widget_visibility['calculators_frame'] = True class BetaVersionFrame(tk.Frame): def __init__(self, parent, controller): tk.Frame.__init__(self, parent) self.controller = controller tk.Label(self, text="""Please note this is a beta version so the program contains a lot of known and unknown bugs!""", font='Tahoma 12').pack() tk.Button(self, text='OK', font='Tahoma 10', width=3, command=self.switch_to_calculator_page).pack() def switch_to_calculator_page(self): self.controller.show_frame(CalculatorPage) app.bell() mx.showinfo('Info!', 'Save your default calculator\'s calculations by clicking on the default calculator\'s ' 'history\'s calculations!') class CalculatorPage(Menu): def __init__(self, parent, controller): Menu.__init__(self, parent, controller) self.new_element_packed_to_csv_history = False # ************ CalculatorPage GUI ************ for row_index in range(5): tk.Grid.rowconfigure(self, row_index, weight=1) for column_index in range(1, 7): tk.Grid.columnconfigure(self, column_index, weight=1) tk.Grid.columnconfigure(self, 7, weight=1, minsize=200) # sidebar self.sidebar_history = tk.Frame(self, width=874, bg='grey', height=200, relief='sunken', borderwidth=2) self.sidebar_history.grid(row=0, column=6, columnspan=10, rowspan=5, sticky=tk.N + tk.S + tk.E + tk.W) self.sidebar_saved = tk.Frame(self, width=874, bg='grey', height=200, relief='sunken', borderwidth=2) self.sidebar_saved.grid(row=0, column=6, columnspan=10, rowspan=5, sticky=tk.N + tk.S + tk.E + tk.W) self.sidebar_saved_buttons = tk.Frame(self.sidebar_saved, height=200, bg='grey') self.sidebar_saved_buttons.pack(side=tk.TOP, fill=tk.X) self.sidebar_history_buttons = tk.Frame(self.sidebar_history, height=200) self.sidebar_history_buttons.pack(side=tk.TOP, fill=tk.X) self.button_saved_switch_sidebar = tk.Button(self.sidebar_saved_buttons, text='saved', font='Tahoma', command=lambda: self.sidebar_history.tkraise()) self.button_saved_switch_sidebar.pack(fill=tk.X, side=tk.LEFT, expand=True) self.button_history_switch_sidebar = tk.Button(self.sidebar_history_buttons, text='history', font='Tahoma', command=lambda: self.sidebar_saved.tkraise()) self.button_history_switch_sidebar.pack(side=tk.LEFT, fill=tk.X, expand=True) self.latest_width_of_saved_cont = None self.latest_width_of_history_cont = None self.mainloop = None self.pack_new_element_to_history_cont = False self.pack_new_element_to_saved_cont = False self.calculation_saved_cont = tk.Frame(self.sidebar_saved, bg='blue') self.saved_scroll_frame = ScrollFrame(self.calculation_saved_cont) self.calculation_saved_cont.pack(side="top", fill="both", expand=True) self.saved_scroll_frame.pack(fill="both", expand=True) self.calculation_history_cont = tk.Frame(self.sidebar_history, bg='grey') self.history_scroll_frame = ScrollFrame(self.calculation_history_cont) self.calculation_history_cont.pack(side="top", fill="both", expand=True) self.history_scroll_frame.pack(fill="both", expand=True) self.calculation_history_cont.pack_propagate(False) self.calculation_saved_cont.pack_propagate(False) self.csv_history = CSVFile('operation_history.csv') self.csv_saved = CSVFile('operation_saved.csv') self.clear_img = tk.PhotoImage(file='clear_img.png', height=25) self.history_clear_button = tk.Button(self.sidebar_history_buttons, width=25, image=self.clear_img, command=self.clear_csv_history) self.history_clear_button.pack(side=tk.LEFT, fill=tk.Y) self.saved_clear_button = tk.Button(self.sidebar_saved_buttons, width=25, image=self.clear_img, command=self.clear_csv_saved) self.saved_clear_button.pack(side=tk.LEFT, fill=tk.Y) # row 1 self.operation = tk.Entry(self, relief=tk.FLAT, font='Tahoma 18') self.operation.grid(row=0, column=1, columnspan=5, sticky=tk.N + tk.S + tk.E + tk.W) self.operation.bind('', self.resize) self.operation.bind('', self.equals) # row 2 tk.Button(self, text='C', background='lightblue', activebackground='lightgrey', width=10, height=2, font='Tahoma', command=lambda: self.operation.delete(0, tk.END)).grid( row=1, column=1, sticky=tk.N + tk.S + tk.E + tk.W ) tk.Button(self, text='1', background='lightblue', activebackground='lightgrey', width=10, height=2, font='' 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 1)).grid(row=1, column=2, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='2', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 2)).grid(row=1, column=3, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='3', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 3)).grid(row=1, column=4, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='/', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), '/')).grid(row=1, column=5, sticky= tk.N + tk.S + tk.E + tk.W) # row 3 tk.Button(self, text=sym_del_left, background='lightblue', activebackground='lightgrey', width=10, height=2, font='Tahoma', command=lambda: self.operation.delete(self.operation.index(tk.INSERT) - 1, self.operation.index(tk.INSERT))).grid(row=2, column=1,sticky= tk.N + tk.S + tk.E + tk.W ) tk.Button(self, text='4', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 4)).grid(row=2, column=2, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='5', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 5)).grid(row=2, column=3, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='6', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 6)).grid(row=2, column=4, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='*', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), '*')).grid(row=2, column=5, sticky= tk.N + tk.S + tk.E + tk.W) # row 4 tk.Button(self, text='x**2', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), '**2')).grid(row=3, column=1, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='7', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 7)).grid(row=3, column=2, sticky=tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='8', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 8)).grid(row=3, column=3, sticky=tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='9', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 9)).grid(row=3, column=4, sticky=tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='.', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), '.')).grid(row=3, column=5, sticky=tk.N + tk.S + tk.E + tk.W) # row 5 tk.Button(self, text=symbol_sqrt, background='lightblue', activebackground='lightgrey', width=10, height=2, font='Tahoma', command=self.sqrt_pass).grid(row=4, column=1, sticky=tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='+', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), '+')).grid(row=4, column=2, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='0', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), 0)).grid(row=4, column=3, sticky=tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='-', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.operation.insert(self.operation.index(tk.INSERT), '-')).grid(row=4, column=4, sticky= tk.N + tk.S + tk.E + tk.W) tk.Button(self, text='=', background='lightblue', activebackground='lightgrey', width=10, height=2, font= 'Tahoma', command= lambda: self.equals(self)).grid(row=4, column=5, sticky=tk.N + tk.S + tk.E + tk.W) def sqrt_pass(self): self.operation.insert('end', 'sqrt()') self.operation.icursor(len(self.operation.get()) - 1) def display(self, text): self.operation.delete(0, tk.END) self.operation.insert(0, text) def resize(self, event): operation_label_height = self.operation.winfo_height() if operation_label_height < 100: self.operation.config(font='Tahoma 18') elif 100 <= operation_label_height < 150: self.operation.config(font='Tahoma 28') else: self.operation.config(font='Tahoma 34') def equals(self, event): try: calculation = self.operation.get() calculation_answer = eval(calculation) except SyntaxError: calculation_answer = 'SyntaxError' except ZeroDivisionError: calculation_answer = 'ZeroDivisionError' except NameError: calculation_answer = 'NameError' except TypeError: calculation_answer = 'TypeError' except: calculation_answer = 'unexpected error' finally: try: error_found = False 0 + 0 if re.match(pattern, str(calculation_answer)) else self.display(calculation_answer) except UnboundLocalError: error_type = 'UnboundLocalError' error_message = 'Defect found inside the program!' error_found = True except: error_type = 'UnknownError' error_message = 'Defect found inside the program!' error_found = True else: # adds new element to the history csv if the element matches the conditions if len(str(calculation)) > 0 and (isinstance(calculation_answer, int) or isinstance(calculation_answer, float)): self.csv_history + f"{dt.datetime.now().strftime('(%Y-%m-%d %H:%M):')} {calculation} = " \ f"{calculation_answer}" self.pack_new_element_to_history_cont = True finally: if error_found: mx.showerror(error_type, error_message) def cont_controller(self, scroll_frame, parent_cont, csv_file_obj, cont_width_to_be_compared, pack_new_element, forced_update: bool = False) -> int: """ Hardcoded method for updating cont's element's widths and also for adding them :return: parent cont's width """ parent_cont_width = parent_cont.winfo_width() scrollbar_width = scroll_frame.vsb.winfo_width() if parent_cont_width != \ cont_width_to_be_compared or pack_new_element or forced_update: for widget in scroll_frame.viewPort.winfo_children(): widget.destroy() for counter, row in enumerate(csv_file_obj.__repr__(), 1): if len(row) != 0: row = ''.join(row) parent_cont_width_without_scrollbar = parent_cont_width - scrollbar_width font = ImageFont.truetype('times.ttf', 19, encoding='UTF-8') size = font.getsize(row) calculation_label_text = row if size[0] > parent_cont_width_without_scrollbar: calculation_label_text = row[0:int(size[1] / (size[1] / parent_cont_width_without_scrollbar) / ( 8.5 if parent_cont_width_without_scrollbar < 300 else 8 if parent_cont_width_without_scrollbar < 400 else 7.75)) + 1] + '...' history_calculation_label = tk.Label(scroll_frame.viewPort, text=calculation_label_text, font=('times.ttf', 11), bg='gray', name=f'label{str(counter)}') history_calculation_label.pack(anchor=tk.NW) if parent_cont == self.calculation_history_cont: history_calculation_label.bind('', self.add_label_to_saved_cont) if self.pack_new_element_to_history_cont: self.mainloop.history_scroll_down_permission = True self.pack_new_element_to_history_cont = False if self.pack_new_element_to_saved_cont: self.mainloop.saved_scroll_down_permission = True self.pack_new_element_to_saved_cont = False parent_cont_width_after_cont_controller_ran = parent_cont.winfo_width() return parent_cont_width_after_cont_controller_ran def calculation_history_cont_display(self, forced_update: bool = False): if forced_update: self.latest_width_of_history_cont = self.cont_controller(self.history_scroll_frame, self.calculation_history_cont, self.csv_history, self.latest_width_of_history_cont, self.pack_new_element_to_history_cont, True) else: self.latest_width_of_history_cont = self.cont_controller(self.history_scroll_frame, self.calculation_history_cont, self.csv_history, self.latest_width_of_history_cont, self.pack_new_element_to_history_cont) def calculation_saved_cont_display(self, forced_update: bool = False): if forced_update: self.latest_width_of_saved_cont = self.cont_controller(self.saved_scroll_frame, self.calculation_saved_cont, self.csv_saved, self.latest_width_of_saved_cont, self.pack_new_element_to_saved_cont, True) else: self.latest_width_of_saved_cont = self.cont_controller(self.saved_scroll_frame, self.calculation_saved_cont, self.csv_saved, self.latest_width_of_saved_cont, self.pack_new_element_to_saved_cont) def clear_csv_history(self): self.csv_history.clear_csv() self.calculation_history_cont_display(True) self.history_scroll_frame.move_scroll(0) tk.Label(self.history_scroll_frame.viewPort, text=' ', bg='grey').pack(anchor=tk.NW) def clear_csv_saved(self): if len(self.csv_saved.__repr__()) > 0: app.bell() if mx.askokcancel("Quit", "Are you sure you want to delete all your saved calculations?"): self.csv_saved.clear_csv() self.calculation_saved_cont_display(True) self.saved_scroll_frame.move_scroll(0) tk.Label(self.saved_scroll_frame.viewPort, text=' ', bg='grey').pack(anchor=tk.NW) def start_mainloop(self): self.mainloop = CalculatorAppMainloop(self.calculation_history_cont_display, self.history_scroll_frame. move_scroll, self.calculation_saved_cont_display, self.saved_scroll_frame. move_scroll) self.mainloop.start_mainloop() def add_label_to_saved_cont(self, event): label_text = event.widget['text'] self.csv_saved + label_text self.pack_new_element_to_saved_cont = True class UnitConverter(Menu): def __init__(self, parent, controller): Menu.__init__(self, parent, controller) tk.Grid.rowconfigure(self, 0, weight=1) tk.Grid.columnconfigure(self, 1, weight=1) self.pack_frame_first_time = True def pack_frame(frame): global used_frame if self.pack_frame_first_time: frame.place(relx=.5, rely=.5, anchor="c") self.pack_frame_first_time = False self.entry_callback_first_time = True used_frame = frame else: used_frame.pack_forget() frame.place(relx=.5, rely=.5, anchor="c") used_frame = frame def entry_callback(event): try: unitcalc_entry_nums = None unitcalc_entry_nums = float(entry_length_operation_1.get()) entry_length_operation_2.delete(0, tk.END) elo_value = str(variable_dropdown_2.get()) # elo = entry_length_operation_2 if str(used_frame) == '.!frame.!unitconverter.!frame2.!frame2': if str(variable_dropdown_1.get()) == 'Meter': if elo_value == 'Kilometer': unitcalc_entry_nums /= 1000 elif elo_value == 'Centimeter': unitcalc_entry_nums *= 100 elif elo_value == 'Millimeter': unitcalc_entry_nums *= 1000 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 1000000 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 1000000000 elif elo_value == 'Mile': unitcalc_entry_nums /= 1609.344 # approximate value elif elo_value == 'Yard': unitcalc_entry_nums *= 1.094 # approximate value elif elo_value == 'Foot': unitcalc_entry_nums *= 3.281 # approximate value elif elo_value == 'Inch': unitcalc_entry_nums *= 39.37 # approximate value elif elo_value == 'Light Year': unitcalc_entry_nums /= 9.461e+15 # approximate value elif str(variable_dropdown_1.get()) == 'Kilometer': if elo_value == 'Meter': unitcalc_entry_nums *= 1000 elif elo_value == 'Centimeter': unitcalc_entry_nums *= 100000 elif elo_value == 'Millimeter': unitcalc_entry_nums *= 1e+6 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 1e+9 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 1e+12 elif elo_value == 'Mile': unitcalc_entry_nums /= 1.609 # approximate value elif elo_value == 'Yard': unitcalc_entry_nums *= 1093.613 # approximate value elif elo_value == 'Foot': unitcalc_entry_nums *= 3280.84 # approximate value elif elo_value == 'Inch': unitcalc_entry_nums *= 39370.079 # approximate value elif elo_value == 'Light Year': unitcalc_entry_nums /= 9.461e+12 # approximate value elif str(variable_dropdown_1.get()) == 'Centimeter': if elo_value == 'Kilometer': unitcalc_entry_nums /= 100000 elif elo_value == 'Meter': unitcalc_entry_nums /= 100 elif elo_value == 'Millimeter': unitcalc_entry_nums /= 10 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 10000 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 1e+7 elif elo_value == 'Mile': unitcalc_entry_nums /= 160934.4 elif elo_value == 'Yard': unitcalc_entry_nums /= 91.44 elif elo_value == 'Foot': unitcalc_entry_nums /= 30.84 elif elo_value == 'Inch': unitcalc_entry_nums /= 2.54 elif elo_value == 'Light Year': unitcalc_entry_nums /= 9.461e+17 # approximate value elif str(variable_dropdown_1.get()) == 'Millmeter': if elo_value == 'Kilometer': unitcalc_entry_nums /= 1e+6 elif elo_value == 'Meter': unitcalc_entry_nums /= 1000 elif elo_value == 'Centimeter': unitcalc_entry_nums /= 10 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 1000 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 1e+6 elif elo_value == 'Mile': unitcalc_entry_nums /= 1.609e+6 # approximate value elif elo_value == 'Yard': unitcalc_entry_nums /= 914.4 elif elo_value == 'Foot': unitcalc_entry_nums /= 304.8 elif elo_value == 'Inch': unitcalc_entry_nums /= 25.4 elif elo_value == 'Light Year': unitcalc_entry_nums /= 9.461e+18 # approximate value elif str(variable_dropdown_1.get()) == 'Micrometer': if elo_value == 'Kilometer': unitcalc_entry_nums /= 1e+9 elif elo_value == 'Meter': unitcalc_entry_nums /= 1e+6 elif elo_value == 'Centimeter': unitcalc_entry_nums /= 10000 elif elo_value == 'Millimeter': unitcalc_entry_nums /= 1000 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 1000 elif elo_value == 'Mile': unitcalc_entry_nums /= 1.609e+9 # approximate value elif elo_value == 'Yard': unitcalc_entry_nums /= 914400 elif elo_value == 'Foot': unitcalc_entry_nums /= 304800 elif elo_value == 'Inch': unitcalc_entry_nums /= 25400 elif elo_value == 'Light Year': unitcalc_entry_nums /= 9.461e+21 elif str(variable_dropdown_1.get()) == 'Nanometer': if elo_value == 'Kilometer': unitcalc_entry_nums /= 1e+12 elif elo_value == 'Meter': unitcalc_entry_nums /= 1e+9 elif elo_value == 'Centimeter': unitcalc_entry_nums /= 1e+7 elif elo_value == 'Millimeter': unitcalc_entry_nums /= 1000000 elif elo_value == 'Micrometer': unitcalc_entry_nums /= 1000 elif elo_value == 'Mile': unitcalc_entry_nums /= 1.609e+12 # approximate value elif elo_value == 'Yard': unitcalc_entry_nums /= 9.144e+8 # approximate value elif elo_value == 'Foot': unitcalc_entry_nums /= 3.048e+8 elif elo_value == 'Inch': unitcalc_entry_nums /= 2.54e+7 elif elo_value == 'Light Year': unitcalc_entry_nums /= 9461e+24 # approximate value elif str(variable_dropdown_1.get()) == 'Mile': if elo_value == 'Kilometer': unitcalc_entry_nums *= 1.609 elif elo_value == 'Meter': unitcalc_entry_nums *= 1609.344 elif elo_value == 'Centimeter': unitcalc_entry_nums *= 160934.4 elif elo_value == 'Millimeter': unitcalc_entry_nums *= 1.609e+6 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 1.609e+9 # approximate value elif elo_value == 'Nanometer': unitcalc_entry_nums *= 1.609e+12 elif elo_value == 'Yard': unitcalc_entry_nums *= 1760 elif elo_value == 'Foot': unitcalc_entry_nums *= 5280 elif elo_value == 'Inch': unitcalc_entry_nums *= 63360 elif elo_value == 'Light Year': unitcalc_entry_nums /= 5.879e+12 # approximate value elif str(variable_dropdown_1.get()) == 'Yard': if elo_value == 'Kilometer': unitcalc_entry_nums /= 1093.613 # approximate value elif elo_value == 'Meter': unitcalc_entry_nums /= 1.094 # approximate value elif elo_value == 'Centimeter': unitcalc_entry_nums *= 91.44 elif elo_value == 'Millimeter': unitcalc_entry_nums *= 914.4 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 914400 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 9.144e+8 elif elo_value == 'Mile': unitcalc_entry_nums /= 1760 elif elo_value == 'Foot': unitcalc_entry_nums *= 3 elif elo_value == 'Inch': unitcalc_entry_nums *= 36 elif elo_value == 'Light Year': unitcalc_entry_nums /= 1.035e+16 # approximate value elif str(variable_dropdown_1.get()) == 'Foot': if elo_value == 'Kilometer': unitcalc_entry_nums /= 3280.84 elif elo_value == 'Meter': unitcalc_entry_nums /= 3.281 # approximate value elif elo_value == 'Centimeter': unitcalc_entry_nums *= 30.48 elif elo_value == 'Millimeter': unitcalc_entry_nums *= 304.8 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 304800 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 3.048e+8 elif elo_value == 'Mile': unitcalc_entry_nums /= 5280 elif elo_value == 'Yard': unitcalc_entry_nums /= 3 elif elo_value == 'Inch': unitcalc_entry_nums *= 12 elif elo_value == 'Light Year': unitcalc_entry_nums /= 3.104e+16 elif str(variable_dropdown_1.get()) == 'Inch': if elo_value == 'Kilometer': unitcalc_entry_nums /= 39370.079 # approximate value elif elo_value == 'Meter': unitcalc_entry_nums /= 39.37 elif elo_value == 'Centimeter': unitcalc_entry_nums *= 2.54 elif elo_value == 'Millimeter': unitcalc_entry_nums *= 25.4 elif elo_value == 'Micrometer': unitcalc_entry_nums *= 25400 elif elo_value == 'Nanometer': unitcalc_entry_nums *= 2.54e+7 elif elo_value == 'Mile': unitcalc_entry_nums /= 63360 elif elo_value == 'Yard': unitcalc_entry_nums /= 36 elif elo_value == 'Foot': unitcalc_entry_nums /= 12 elif elo_value == 'Light Year': unitcalc_entry_nums /= 3.725e+17 # approximate value elif str(variable_dropdown_1.get()) == 'Light Year': if elo_value == 'Kilometer': unitcalc_entry_nums *= 9.461e+12 # approximate value elif elo_value == 'Meter': unitcalc_entry_nums *= 9.461e+15 # approximate value elif elo_value == 'Centimeter': unitcalc_entry_nums *= 9.461e+17 # approximate value elif elo_value == 'Millimeter': unitcalc_entry_nums *= 9.461e+18 # approximate value elif elo_value == 'Micrometer': unitcalc_entry_nums *= 9.461e+21 # approximate value elif elo_value == 'Nanometer': unitcalc_entry_nums *= 9.461e+24 # approximate value elif elo_value == 'Mile': unitcalc_entry_nums *= 5.879e+12 # approximate value elif elo_value == 'Yard': unitcalc_entry_nums *= 1.035e+16 # approximate value elif elo_value == 'Foot': unitcalc_entry_nums *= 3.104e+16 # approximate value elif elo_value == 'Inch': unitcalc_entry_nums *= 3.725e+17 # approximate value except ValueError: if len(entry_length_operation_1.get()) == 0: entry_length_operation_2.delete(0, tk.END) else: mx.showerror('ValueError', 'Error: Use numbers only!') except OverflowError: mx.showerror('OverflowError', 'Error: Your given number is too big for the conversion!') finally: if unitcalc_entry_nums is not None: if str(unitcalc_entry_nums) == 'inf': mx.showerror('InfinityError', 'Your given value is too big') else: entry_length_operation_2.insert(0, unitcalc_entry_nums) # UnitCalculator GUI unitcalc_frame = tk.Frame(self, background='white') unitcalc_frame.grid(column=1, row=0, rowspan=5, columnspan=6, sticky=tk.N + tk.S + tk.E + tk.W) upper_frame = tk.Frame(unitcalc_frame, background='white') upper_frame.pack(side=tk.TOP, fill=tk.X) # length converter frame lower_frame_length = tk.Frame(unitcalc_frame, background='white', width=400, height=200, bg='white') label_from = tk.Label(lower_frame_length, text='From:', font='Tahoma 10 bold', bg='white') label_from.grid(row=0, column=0) entry_length_operation_1 = tk.Entry(lower_frame_length, width=28, font='Tahoma 12', bg='white', relief=tk.SOLID) entry_length_operation_1.grid(row=1, ipady=2, padx=16, columnspan=2) entry_length_operation_1.bind('', entry_callback) label_to = tk.Label(lower_frame_length, text='To:', font='Tahoma 10 bold', bg='white') label_to.grid(row=0, column=4) entry_length_operation_2 = tk.Entry(lower_frame_length, width=28, font='Tahoma 12', relief=tk.SOLID, bg='white') entry_length_operation_2.grid(row=1, column=4, ipady=2, padx=16, columnspan=2) variable_dropdown_1 = tk.StringVar(lower_frame_length) variable_dropdown_1.set("Meter") # default value dropdown_list_1 = tk.OptionMenu(lower_frame_length, variable_dropdown_1, "Kilometer", "Meter", "Centimeter", 'Millimeter', 'Micrometer', 'Nanometer', 'Mile', 'Yard', 'Foot', 'Inch', 'Light Year') dropdown_list_1.grid(row=2, pady=10, padx=10) variable_dropdown_2 = tk.StringVar(lower_frame_length) variable_dropdown_2.set("Meter") # default value dropdown_list_2 = tk.OptionMenu(lower_frame_length, variable_dropdown_2, "Kilometer", "Meter", "Centimeter", 'Millimeter', 'Micrometer', 'Nanometer', 'Mile', 'Yard', 'Foot', 'Inch', 'Light Year') dropdown_list_2.grid(row=2, column=4, pady=10, padx=10) # temperature converter frame lower_frame_temperature = tk.Frame(unitcalc_frame, background='white', width=400, height=200) label_from = tk.Label(lower_frame_temperature, text='From:', font='Tahoma', bg='green') label_from.grid(row=0, column=0) variable = tk.StringVar(lower_frame_temperature) variable.set("one") # default value dropdown_list = tk.OptionMenu(lower_frame_temperature, variable, "one", "two", "three") dropdown_list.grid(row=1, pady=10, padx=10) # area converter frame lower_frame_area = tk.Frame(unitcalc_frame, background='white', width=400, height=200) variable = tk.StringVar(lower_frame_area) variable.set("one") # default value dropdown_list = tk.OptionMenu(lower_frame_area, variable, "one", "two", "three") dropdown_list.pack(side=tk.TOP, anchor=tk.CENTER, pady=10, padx=10) # weight converter frame lower_frame_weight = tk.Frame(unitcalc_frame, background='white', width=400, height=200) variable = tk.StringVar(lower_frame_weight) variable.set("one") # default value dropdown_list = tk.OptionMenu(lower_frame_weight, variable, "one", "two", "three") dropdown_list.pack(side=tk.TOP, anchor=tk.CENTER, pady=10, padx=10) # buttons upper_frame_button_length = tk.Button(upper_frame, text='Length', bg='gray', relief=tk.SUNKEN, font= 'Tahoma', command=lambda: pack_frame(lower_frame_length)) upper_frame_button_length.pack(side=tk.LEFT, anchor=tk.S, padx=20, fill=tk.X, expand=True) upper_frame_button_temperature = tk.Button(upper_frame, text='Temperature', bg='gray', relief=tk.SUNKEN, font= 'Tahoma', command=lambda: mx.showinfo('NotSupported', 'Not supported yet!')) upper_frame_button_temperature.pack(side=tk.LEFT, anchor=tk.S, padx=20, fill=tk.X, expand=True) upper_frame_button_area = tk.Button(upper_frame, text='Area', bg='gray', relief=tk.SUNKEN, font='Tahoma', command=lambda: mx.showinfo('NotSupported', 'Not supported yet!')) upper_frame_button_area.pack(side=tk.LEFT, anchor=tk.S, padx=20, fill=tk.X, expand=True) upper_frame_button_weight = tk.Button(upper_frame, text='Weight', bg='gray', relief=tk.SUNKEN, font='Tahoma', command=lambda: mx.showinfo('NotSupported', 'Not supported yet!')) upper_frame_button_weight.pack(side=tk.LEFT, anchor=tk.S, padx=20, fill=tk.X, expand=True) pack_frame(lower_frame_length) class CSVFile: def __init__(self, f): self.f = f def clear_csv(self): with open(self.f, mode='w'): pass def __add__(self, other): with open(self.f, mode='a', newline='') as f: writer = csv.writer(f, quotechar='"') writer.writerow(str(other)) def __str__(self): with open(self.f) as f: # mode='r' is default csv_reader = csv.reader(f) return str(list(csv_reader)) def __repr__(self): with open(self.f) as f: csv_reader = csv.reader(f) return list(csv_reader) class ScrollFrame(tk.Frame): def __init__(self, parent): super().__init__(parent, bg='gray') # create a frame (self) self.canvas = tk.Canvas(self, borderwidth=0, background="gray", highlightthickness=0) # place canvas on self self.viewPort = tk.Frame(self.canvas, background="gray") # place a frame on the canvas, this frame will hold the child widgets self.vsb = tk.Scrollbar(self, orient="vertical", command=self.canvas.yview) # place a scrollbar on self self.canvas.configure(yscrollcommand=self.vsb.set) # attach scrollbar action to scroll of canvas self.vsb.pack(side="right", fill="y") # pack scrollbar to right of self self.canvas.pack(side="left", fill="both", expand=True) # pack canvas to left of self and expand to fil self.canvas.create_window((4, 4), window=self.viewPort, anchor="nw", # add view port frame to canvas tags="self.viewPort", width=1000) self.viewPort.bind("", self.on_frame_configure) # bind an event whenever the size of the viewPort frame changes. def on_frame_configure(self, event): # Reset the scroll region to encompass the inner frame self.canvas.configure(scrollregion=self.canvas.bbox( "all")) # whenever the size of the frame changes, alter the scroll region respectively. def move_scroll(self, y: int): self.canvas.yview_moveto(y) class CalculatorAppMainloop: def __init__(self, history_cont_label_width_updater: callable, history_cont_scroll: callable, saved_cont_label_width_updater: callable, saved_cont_scroll: callable): self.app_running = True self.history_scroll_down_permission = False self.history_cont_label_width_updater = history_cont_label_width_updater self.history_cont_scroll = history_cont_scroll self.history_scroll_down_permission_delayer = False self.saved_scroll_down_permission = False self.saved_cont_label_width_updater = saved_cont_label_width_updater self.saved_cont_scroll = saved_cont_scroll self.saved_scroll_down_permission_delayer = False def start_mainloop(self): while self.app_running: try: app.update() self.history_cont_label_width_updater() self.saved_cont_label_width_updater() if self.history_scroll_down_permission_delayer: self.history_cont_scroll(1) self.history_scroll_down_permission_delayer = False self.history_scroll_down_permission = False if self.saved_scroll_down_permission_delayer: self.saved_cont_scroll(1) self.saved_scroll_down_permission_delayer = False self.saved_scroll_down_permission = False if self.history_scroll_down_permission: self.history_scroll_down_permission_delayer = True if self.saved_scroll_down_permission: self.saved_scroll_down_permission_delayer = True app.protocol("WM_DELETE_WINDOW", self.on_closing) except _tkinter.TclError: self.app_running = False @staticmethod def on_closing(): app.bell() if mx.askokcancel("Quit", "Do you want to quit?"): app.destroy() if __name__ == '__main__': app = CalculatorApp() app.start_mainloop_starter()

[Beta 0.9.1] CalculatorApp