From 16f1eb6b8eecdc1885e6f69342478d756d80e69e Mon Sep 17 00:00:00 2001 From: Martin Putzlocher Date: Sun, 28 Nov 2021 18:22:11 +0100 Subject: [PATCH] PEP 8 cleanup --- tk_first_steps/feet.py | 63 +++++++++++++++++++++++------------------- 1 file changed, 34 insertions(+), 29 deletions(-) diff --git a/tk_first_steps/feet.py b/tk_first_steps/feet.py index 234e99e..f60fcb3 100644 --- a/tk_first_steps/feet.py +++ b/tk_first_steps/feet.py @@ -1,24 +1,26 @@ from tkinter import * from tkinter import ttk -status = 1 # 1 - neue Eingabe, 2 - Eingabe verarbeitet +status = 1 # 1 - neue Eingabe, 2 - Eingabe verarbeitet -def switch_status(newS: int = None): + +def switch_status(new_status: int = None): """ Verändert den globalen Status - :param newS: neuer Statuswert + :param new_status: neuer Statuswert :return: None """ global status - if not newS: + if not new_status: if status == 1: status = 2 else: status = 1 else: - status = newS + status = new_status update_statusbar() + def update_statusbar(): """ Passt die Farbe der Statuszeile an den Status an. @@ -32,6 +34,7 @@ def update_statusbar(): else: frame_statusbar['style'] = 'bFrame.TFrame' + def calculate(*args): """ Berechnet aus der eingegebenen Länge in feet die Länge in Metern. @@ -40,7 +43,7 @@ def calculate(*args): """ try: stringvalue = feet.get() - stringvalue = stringvalue.replace(",",".") + stringvalue = stringvalue.replace(",", ".") value = float(stringvalue) m_value = 0.3048 * value m_value = round(m_value, 2) @@ -50,7 +53,8 @@ def calculate(*args): pass return True -def check_entry(what : str = ""): + +def check_entry(what: str = ""): """ Validiert, ob Eingabe leer oder eine Fließkommazahl ist. :param what: str eingegebene Zeichenkette @@ -70,60 +74,61 @@ def check_entry(what : str = ""): except ValueError: return False + # Hauptfenster root = Tk() root.title("Feet to Meters") check_entry_wrapper = root.register(check_entry) # Rahmen im Hauptfenster (aus ttk für Farbanpassung) -mainframe = ttk.Frame(root, padding = "3 3 12 12") +mainframe = ttk.Frame(root, padding="3 3 12 12") -mainframe.grid(column = 0, row = 0, sticky = NW) -root.columnconfigure(0, weight = 1) -root.rowconfigure(0, weight = 1) +mainframe.grid(column=0, row=0, sticky=NW) +root.columnconfigure(0, weight=1) +root.rowconfigure(0, weight=1) # Eingabefeld für Länge in feet feet = StringVar() -feet_entry = ttk.Entry(mainframe, width = 7, textvariable = feet, - validatecommand = (check_entry_wrapper, '%P'), - validate = 'key') -feet_entry.grid(column = 2, row = 1, sticky = (W, E)) +feet_entry = ttk.Entry(mainframe, width=7, textvariable=feet, + validatecommand=(check_entry_wrapper, '%P'), + validate='key') +feet_entry.grid(column=2, row=1, sticky=W + E) # Einheit-Label für Eingabefeld der Länge in feet -ttk.Label(mainframe, text = "feet").grid(column = 3, row = 1, sticky = W) +ttk.Label(mainframe, text="feet").grid(column=3, row=1, sticky=W) # Label für Ausgabefeld der Länge in Metern -ttk.Label(mainframe, text = "ist äquivalent zu").grid(column = 1, row = 2, sticky = E) +ttk.Label(mainframe, text="ist äquivalent zu").grid(column=1, row=2, sticky=E) # Einheit-Label für Ausgabefeld der Länge in Metern -ttk.Label(mainframe, text = "Meter").grid(column = 3, row = 2, sticky = W) +ttk.Label(mainframe, text="Meter").grid(column=3, row=2, sticky=W) # Ausgabefeld für Länge in Metern meters = StringVar() -meters_entry = ttk.Entry(mainframe, width = 7, textvariable = meters) -meters_entry.grid(column = 2, row = 2, sticky = (W,E)) -meters_entry.configure(state = 'readonly') # keine Eingabe, aber selektierbar +meters_entry = ttk.Entry(mainframe, width=7, textvariable=meters) +meters_entry.grid(column=2, row=2, sticky=(W, E)) +meters_entry.configure(state='readonly') # keine Eingabe, aber selektierbar # Button für Berechnung -button_calc = ttk.Button(mainframe, text = "Berechne", command = calculate) -button_calc.grid(column = 3, row = 3, sticky = W) +button_calc = ttk.Button(mainframe, text="Berechne", command=calculate) +button_calc.grid(column=3, row=3, sticky=W) # schönere Abstände for child in mainframe.winfo_children(): - child.grid_configure(padx = 5, pady = 5) + child.grid_configure(padx=5, pady=5) # Statusbar s = ttk.Style() -s.configure('aFrame.TFrame', background = "yellow") -s.configure('bFrame.TFrame', background = "green") -s.configure('cFrame.TFrame', background = "red") +s.configure('aFrame.TFrame', background="yellow") +s.configure('bFrame.TFrame', background="green") +s.configure('cFrame.TFrame', background="red") frame_statusbar = ttk.Frame(root) frame_statusbar['relief'] = 'sunken' frame_statusbar['height'] = 12 frame_statusbar['style'] = 'aFrame.TFrame' -frame_statusbar.grid_propagate(0) # Feste Größe an Grid-Packer weitergeben -frame_statusbar.grid(column = 0, row = 1, sticky = W+S+E) +frame_statusbar.grid_propagate(0) # Feste Größe an Grid-Packer weitergeben +frame_statusbar.grid(column=0, row=1, sticky=W + S + E) # Setze Fokus in Eingabefeld feet_entry.focus()