diff --git a/lecture_csv.py b/lecture_csv.py
index dd1bf85..4b9ed43 100644
--- a/lecture_csv.py
+++ b/lecture_csv.py
@@ -2,9 +2,12 @@ import datetime
 
 def numeroJour(date):
     """renvoie un entier correspondant au numéro du jour correspondant (entre 1 et 365)"""
-    day = datetime.datetime.strptime(date, "%Y-%m-%d")
-    num_day = day.strftime('%j')
-    return num_day
+    try: 
+        day = datetime.datetime.strptime(date, "%Y-%m-%d")
+        num_day = day.strftime('%j')
+        return int(num_day)
+    except(ValueError):
+        return None
 
 def lecture(name):
     """lit le fichier csv dont le nom est passé en paramètre, en renvoie trois tableau contenant 
diff --git a/main.py b/main.py
index df880a0..dfb6c61 100644
--- a/main.py
+++ b/main.py
@@ -1,30 +1,56 @@
-from kivy.app import App
-from kivy.graphics import Ellipse, Line
-from kivy.uix.boxlayout import BoxLayout
-from kivy.uix.textinput import TextInput
+import tkinter as tk
+from tkinter import messagebox
+import lecture_csv
 
-class CustomLayout(BoxLayout):
-
-	def __init__(self, **kwargs):
-		super(CustomLayout, self).__init__(**kwargs)
-		with self.canvas.after:
-			pass
-		self.textinput = TextInput(text='Hello world', multiline=False)
-		self.add_widget(self.textinput)
-		self.textinput.bind(on_text_validate=self.on_enter)
-
-	def on_enter(self,instance, value):
-		print('User pressed enter in', instance)
+class Main_frame(tk.Frame):
+	"""Créer la Frame principal"""
+	def __init__(self, root):
+		super().__init__(root)
+		self._build()
+		self.pack()
 
 	
-
-
-class MainApp(App):
-
-	def build(self):
-		root = CustomLayout()
-		return root
+	def _build(self):
+		text_voisin = tk.Label(self, text='Entrez le nombre de voisins: ')
+		text_voisin.grid(column=2, row=0)
+		self.nombre_de_voisin = tk.Entry(self, width=20, textvariable=tk.IntVar())
+		self.nombre_de_voisin.grid(column=3, row=0)
+
+		text_date = tk.Label(self, text='Entrez la date : ')
+		self.date = tk.Entry(self, width=20, textvariable=tk.StringVar())
+		text_date.grid(column=0, row=1)
+		self.date.grid(column=1, row=1)
+
+		text_temp_moy = tk.Label(self, text='Entrez la température moyenne : ')
+		self.temp_moy = tk.Entry(self, width=20, textvariable=tk.DoubleVar())
+		text_temp_moy.grid(column=2, row=1)
+		self.temp_moy.grid(column=3, row=1)
+
+		text_temp_ref = tk.Label(self, text='Entrez la température de référence : ')
+		self.temp_ref = tk.Entry(self, width=20, textvariable=tk.DoubleVar())
+		text_temp_ref.grid(column=4, row=1)
+		self.temp_ref.grid(column=5, row=1)
+
+		validate_button = tk.Button(self, text='Lancer la recherche', command=self.validate)
+		validate_button.grid(column=3, columnspan=2, row=2)
+
+	def validate(self):
+		value = [self.nombre_de_voisin.get(), self.date.get(), self.temp_moy.get(), self.temp_ref.get()]
+		
+		try:
+			value[0] = int(value[0])
+			value[2] = float(value[2])
+			value[3] = float(value[3])
+		except(ValueError):
+			messagebox.showerror('Erreur', 'Veuillez saisir des valeurs correctes !')
+			
+		if value[0] != 0 and lecture_csv.numeroJour(value[1]) != None:
+			value[1] = lecture_csv(value[1])
+			print(value[1])
+		else:
+			messagebox.showerror('Erreur', 'Date ou nombre de voisin nuls')
 
 if __name__ == '__main__':
-	MainApp().run()
-
+	app = tk.Tk()
+	Main_frame(app)
+	app.mainloop()
\ No newline at end of file