diff --git a/app.py b/app.py
index e9d8e97..a94c66d 100644
--- a/app.py
+++ b/app.py
@@ -5,8 +5,7 @@ Created on Fri Sep  4 11:36:24 2020
 @author: Igor Beloschapkin
 """
 
-from tkinter import *
-import tkinter.font as tkFont
+import tkinter
 import subprocess
 import configparser
 
@@ -20,7 +19,7 @@ __version__ = 0.3
 class App:
 
     def __init__(self, master):
-        self.paradigmText = sys.argv[1]
+        self.paradigmText = tkinter.sys.argv[1]
         # App.paradigmText = sys.argv[1]
         # pathOrigin = os.path.dirname(os.path.realpath(__file__))
 
@@ -38,52 +37,52 @@ class App:
         textW = 20
 
         def makeBtn(self, text, bg, command, side):
-            self.button = Button(frame, text=text, bg=bg, command=command)
+            self.button = tkinter.Button(frame, text=text, bg=bg, command=command)
             self.button.config( height = textH, width = textW )
-            self.button['font'] = tkFont.Font(family='Helvetica', size=16, weight='bold')
+            self.button['font'] = tkinter.font.Font(family='Helvetica', size=16, weight='bold')
             self.button.pack(side=side)
             return self.button
 
         def makeBtnSmall(self, text, bg, command, side):
-            self.button = Button(frame, text=text, bg=bg, command=command)
+            self.button = tkinter.Button(frame, text=text, bg=bg, command=command)
             self.button.config( height = textHsmall, width = textW )
-            self.button['font'] = tkFont.Font(family='Helvetica', size=16, weight='bold')
+            self.button['font'] = tkinter.font.Font(family='Helvetica', size=16, weight='bold')
             self.button.pack(side=side)
             return self.button
 
-        frame = Frame(master)
+        frame = tkinter.Frame(master)
         frame.pack()
 
         # label generation
         headerText = 'PythonBCIgui V' + str(__version__) + '\n\n' + self.paradigmText + ' BCI'
-        self.Lparadigm = Label(frame, text = headerText, height = 4, width = 20)
-        self.Lparadigm['font'] = tkFont.Font(family='Helvetica', size=16, weight='bold')
+        self.Lparadigm = tkinter.Label(frame, text = headerText, height = 4, width = 20)
+        self.Lparadigm['font'] = tkinter.font.Font(family='Helvetica', size=16, weight='bold')
         self.Lparadigm.pack()
 
         # button generation
         if self.paradigmText == 'Tactile':
-            self.Bfilter = makeBtn(self, "1. Filter", "lightyellow", self.btn_filter, TOP)
-            self.BtacCal = makeBtn(self, "2. Kalibrierung", "lightgreen", self.btn_tacCal, TOP)
-            self.Bp300 = makeBtn(self, "3. P300 Klassifizierung", "orange", self.btn_p300, TOP)
-            self.BtacCopy = makeBtn(self, "4. Freies Buchstabieren", "lightblue", self.btn_tacCopy, TOP)
-            self.BtacSimul = makeBtn(self, "5. Rollstuhlsimulator", "pink", self.btn_tacSimul, TOP)
+            self.Bfilter = makeBtn(self, "1. Filter", "lightyellow", self.btn_filter, tkinter.TOP)
+            self.BtacCal = makeBtn(self, "2. Kalibrierung", "lightgreen", self.btn_tacCal, tkinter.TOP)
+            self.Bp300 = makeBtn(self, "3. P300 Klassifizierung", "orange", self.btn_p300, tkinter.TOP)
+            self.BtacCopy = makeBtn(self, "4. Freies Buchstabieren", "lightblue", self.btn_tacCopy, tkinter.TOP)
+            self.BtacSimul = makeBtn(self, "5. Rollstuhlsimulator", "pink", self.btn_tacSimul, tkinter.TOP)
         elif self.paradigmText == 'Visual':
-            self.Bfilter = makeBtn(self, "1. Filter", "lightyellow", self.btn_filter, TOP)
-            self.BvisCal = makeBtn(self, "2. Kalibrierung", "lightgreen", self.btn_visCal, TOP)
-            self.Bp300 = makeBtn(self, "3. P300 Klassifizierung", "orange", self.btn_p300, TOP)
-            self.BvisCopy = makeBtn(self, "4. Freies Buchstabieren", "lightblue", self.btn_visCopy, TOP)
+            self.Bfilter = makeBtn(self, "1. Filter", "lightyellow", self.btn_filter, tkinter.TOP)
+            self.BvisCal = makeBtn(self, "2. Kalibrierung", "lightgreen", self.btn_visCal, tkinter.TOP)
+            self.Bp300 = makeBtn(self, "3. P300 Klassifizierung", "orange", self.btn_p300, tkinter.TOP)
+            self.BvisCopy = makeBtn(self, "4. Freies Buchstabieren", "lightblue", self.btn_visCopy, tkinter.TOP)
         elif self.paradigmText == 'Test':  # TODO Remove
-            self.Bfilter = makeBtn(self, "1. Filter", "lightyellow", self.btn_filter, TOP)
-            self.BvisCal = makeBtn(self, "2. Kalibrierung", "lightgreen", self.btn_visCal, TOP)
-            self.Bp300 = makeBtn(self, "3. P300 Klassifizierung", "orange", self.btn_p300, TOP)
-            self.BvisCopy = makeBtn(self, "4. Freies Buchstabieren", "lightblue", self.btn_visCopy, TOP)
-            self.Btest = makeBtnSmall(self, "TEST", "green", self.btn_test, TOP)  # TODO Remove
+            self.Bfilter = makeBtn(self, "1. Filter", "lightyellow", self.btn_filter, tkinter.TOP)
+            self.BvisCal = makeBtn(self, "2. Kalibrierung", "lightgreen", self.btn_visCal, tkinter.TOP)
+            self.Bp300 = makeBtn(self, "3. P300 Klassifizierung", "orange", self.btn_p300, tkinter.TOP)
+            self.BvisCopy = makeBtn(self, "4. Freies Buchstabieren", "lightblue", self.btn_visCopy, tkinter.TOP)
+            self.Btest = makeBtnSmall(self, "TEST", "green", self.btn_test, tkinter.TOP)  # TODO Remove
         else:
             print('Fehler: Bitte wählen Sie "Tactile" oder "Visual" als Argument')
             raise ValueError
 
         # self.Bquest = makeBtnSmall(self, "6. Fragebogen", "green", self.btn_quest, TOP)
-        self.BtacConfig = makeBtnSmall(self, "Konfiguration", "gray", self.btn_config, TOP)
+        self.BtacConfig = makeBtnSmall(self, "Konfiguration", "gray", self.btn_config, tkinter.TOP)
 
         frame.rowconfigure((0,1), weight=1)  # make buttons stretch when
         frame.columnconfigure((0,2), weight=1)  # when window is resized
@@ -155,10 +154,10 @@ class App:
     # X. Settings #########################
     def btn_config(self):
         print('Konfiguration')
-        messagebox.showinfo('Konfiguration', 'Bitte wählen Sie nun den BCI2000 Ordner aus, in dem sich die Ordner "batch", "data", "icons", "parms", "prog" und "tools" befinden.')
-        config['PATH']['bci2000'] = filedialog.askdirectory()
-        messagebox.showinfo('Konfiguration', 'Bitte wählen Sie nun den Ordner aus, in dem sich die TactileBCIfilter.exe befindet.')
-        config['PATH']['tactilebcifilter'] = filedialog.askdirectory()
+        tkinter.messagebox.showinfo('Konfiguration', 'Bitte wählen Sie nun den BCI2000 Ordner aus, in dem sich die Ordner "batch", "data", "icons", "parms", "prog" und "tools" befinden.')
+        config['PATH']['bci2000'] = tkinter.filedialog.askdirectory()
+        tkinter.messagebox.showinfo('Konfiguration', 'Bitte wählen Sie nun den Ordner aus, in dem sich die TactileBCIfilter.exe befindet.')
+        config['PATH']['tactilebcifilter'] = tkinter.filedialog.askdirectory()
         config.write(open('config.ini','w'))
         # TODO Catch errors falls falsche Ordner gewählt wurden
 
@@ -171,7 +170,7 @@ class App:
         window.destroy()
 
 config = configparser.ConfigParser()
-root = Tk()
+root = tkinter.Tk()
 
 def on_closing():
     #self.global_close(root)