initial verson of configuration script
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#! /bin/python3
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import os
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import subprocess
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import sys
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import tkinter as tk
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# imporrt the standard to read and write config files
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import configparser
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#the main window
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master=tk.Tk()
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#list of required modules
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modules=list()
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try:
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import vlc
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except:
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modules.append("python-vlc")
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try:
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import crontab
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except:
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modules.append("python-crontab")
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#init variables used in config file and some other places
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doAutostart=tk.IntVar()
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bild_dauer=tk.IntVar()
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DEBUG_PREVIEW=tk.IntVar()
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localPath=tk.StringVar()
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remoteURL=tk.StringVar()
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#set "dirty" flag to False
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#any change should set it to True, so we can ask on quit to save data
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isDirty=False
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def createAutostart():
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'''
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create the auto start file gruene_signale.desktop in $HOME/.config/autostart/
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also create intermediate paths if the do not exist
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when the file already exists, nothing is done
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'''
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autostartfile = os.path.expanduser("~/.config/autostart/gruene_signale.desktop")
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whereami = os.path.dirname(os.path.realpath(__file__))
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contents = """[Desktop Entry]
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Type=Application
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Name=Green Signals Autostart
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Comment=Starten der Slideshow von Grüne Signale
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NoDisplay=false
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Exec=sh -c 'cd %(path)s && /bin/python3 gruene_signale.py'
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"""
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if os.path.isfile(autostartfile) == False:
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if os.path.exists(os.path.dirname(autostartfile)) == False:
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os.makedirs(os.path.dirname(autostartfile))
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file=open(autostartfile,"w")
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file.write(contents%{'path':whereami})
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file.close()
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def removeAutostart():
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'''
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check if the auto start file exists, and if it does, remove it
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'''
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autostartfile = os.path.expanduser("~/.config/autostart/gruene_signale.desktop")
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if os.path.isfile(autostartfile) == True:
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os.remove(autostartfile)
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def checkAutostartfile():
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'''
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check if the auto start file gruene_signale.desktop already exists
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returns True, if it does, False if not
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'''
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autostartfile = os.path.expanduser("~/.config/autostart/gruene_signale.desktop")
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return int(os.path.isfile(autostartfile))
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def installModules():
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global modules
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failed=list()
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for module in modules:
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try:
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subprocess.check_call([sys.executable, "-m", "pip", "install", module])
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except:
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print("install module %s failed" % module)
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failed.append(module)
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modules=failed
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def setDirty():
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global isDirty
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isDirty = True
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def readConfig(configFile=None):
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global bild_dauer, DEBUG_PREVIEW, localPath, remoteURL, isDirty
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if configFile == None:
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configFile = os.path.dirname(os.path.realpath(__file__)) + os.sep + "gruene_signale.conf"
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config = configparser.ConfigParser()
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config.read(configFile)
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try:
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bild_dauer.set(int(config.get('bilder', 'dauer')))
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except:
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bild_dauer.set(10)
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isDirty = True
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try:
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val = config.get('debug', 'preview')
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except:
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val = "0"
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if val == "1":
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DEBUG_PREVIEW.set(1)
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try:
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val = os.path.realpath(config.get('pfad', 'lokal'))
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except:
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val = os.path.dirname(os.path.realpath(__file__)) + os.sep + "slideshow"
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localPath.set(val)
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#try to read the remote URL, if not given, work offline
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try:
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val = config.get('pfad', 'remote')
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remoteURL.set(val)
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except:
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val = None
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remoteURL.set("")
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def writeConfig(configFile=None):
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if configFile == None:
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configFile = os.path.dirname(os.path.realpath(__file__)) + os.sep + "gruene_signale.conf"
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config = configparser.ConfigParser()
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config.read(configFile)
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config.set('bilder','dauer',"%d" % bild_dauer.get())
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config.set('debug', 'preview',"%d" % DEBUG_PREVIEW.get())
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config.set('pfad', 'lokal',localPath.get().strip())
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config.set('pfad', 'remote',remoteURL.get().strip())
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with open(configFile, 'w') as file:
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config.write(file)
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def save():
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global isDirty
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if isDirty == False:
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return;
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writeConfig()
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if checkAutostartfile() == 1 and doAutostart.get() == 0:
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removeAutostart()
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if checkAutostartfile() == 0 and doAutostart.get() == 1:
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createAutostart()
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isDirty=False
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def quit():
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master.destroy()
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exit(0)
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readConfig()
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master.minsize(600,300)
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master.geometry("800x450+560+300")
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master.title("Einstellungen für Grüne Signale")
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#add button or notification if Python modules (see above) needs to be installed
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row=tk.Frame(master,bd=1,relief=tk.SUNKEN)
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lab=tk.Label(row,text="Python Module",width=30,anchor='w')
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if len(modules) == 0:
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obj=tk.Label(row,text="installiert",fg="green")
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else:
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obj=tk.Button(row,text="Installieren",command=installModules,fg="red")
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row.pack(side=tk.TOP,padx=10,pady=10,expand=tk.YES,fill=tk.X)
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lab.pack(side=tk.LEFT,pady=10)
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obj.pack(side=tk.RIGHT,expand=tk.YES,fill=tk.X,padx=10)
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if checkAutostartfile():
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doAutostart.set(1)
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#add autostart checkbox
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row=tk.Frame(master,bd=1,relief=tk.SUNKEN)
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lab=tk.Label(row,text="Grüne Signale automatisch starten",width=30,anchor='w')
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obj=tk.Checkbutton(row,text="aktiv",variable=doAutostart,command=setDirty)
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row.pack(side=tk.TOP,padx=10,pady=10,expand=tk.YES,fill=tk.X)
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lab.pack(side=tk.LEFT,pady=10)
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obj.pack(side=tk.RIGHT,expand=tk.YES,fill=tk.X,padx=10)
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#add entry field for local path
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row=tk.Frame(master,bd=1,relief=tk.SUNKEN)
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lab=tk.Label(row,text="lokaler Pfad",width=30,anchor='w')
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obj=tk.Entry(row)
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obj.insert(10,localPath.get())
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row.pack(side=tk.TOP,padx=10,pady=10,expand=tk.YES,fill=tk.X)
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lab.pack(side=tk.LEFT,pady=10)
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obj.pack(side=tk.RIGHT,expand=tk.YES,fill=tk.X,padx=10)
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#add entry field for remoteURL
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row=tk.Frame(master,bd=1,relief=tk.SUNKEN)
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lab=tk.Label(row,text="Remote-URL (leer für Offline-Modus)",width=30,anchor='w')
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obj=tk.Entry(row)
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obj.insert(10,remoteURL.get())
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row.pack(side=tk.TOP,padx=10,pady=10,expand=tk.YES,fill=tk.X)
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lab.pack(side=tk.LEFT,pady=10)
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obj.pack(side=tk.RIGHT,expand=tk.YES,fill=tk.X,padx=10)
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#add checkbox for Debug Preview Mode
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row=tk.Frame(master,bd=1,relief=tk.SUNKEN)
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lab=tk.Label(row,text="Debug Preview Modus",width=30,anchor='w')
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obj=tk.Checkbutton(row,text="aktiv",variable=DEBUG_PREVIEW,command=setDirty)
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row.pack(side=tk.TOP,padx=10,pady=10,expand=tk.YES,fill=tk.X)
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lab.pack(side=tk.LEFT,pady=10)
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obj.pack(side=tk.RIGHT,expand=tk.YES,fill=tk.X,padx=10)
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#add buttons
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row=tk.Frame(master)
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saveButton=tk.Button(row,text="Übernehmen",command=save,pady=4,padx=10)
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saveButton.pack(side=tk.LEFT,pady=10,padx=10)
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quitButton=tk.Button(row,text="Beenden",command=quit,pady=4,padx=10)
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quitButton.pack(side=tk.RIGHT,pady=10,padx=10)
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row.pack(side=tk.BOTTOM)
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master.mainloop()
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