python 関数内の変数について

Question

前提・実現したいこと

Difficult_Questionを呼び出した際にエラーが出ます

発生している問題・エラーメッセージ

例外が発生しました: UnboundLocalError
local variable 'out_Integ' referenced before assignment

該当のソースコード

import tkinter  as tk
from tkinter import font
import tkinter.ttk as ttk
from sympy import *
import random

#シンボル定義
x = Symbol("x")
y = Symbol("y")
z = Symbol("z")
a = Symbol("a")
b = Symbol("b")
c = Symbol("c")

#問題定義
function_dic1 = {1:sin(x),2:cos(x),3:tan(x),4:exp(x),5:log(x)}
function_dic2 = {1:sin(2*x),2:cos(2*x),3:tan(2*x)}

def Basic_Question(Question_No,index1,index2,index3,Value1,Value2,Value3,Value4):
    if Question_No == 1:
        Integ = (1+x)**index1/x**index2
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "(1+x)^"+str(index1)+"/"+"x^"+str(index2)
    elif Question_No == 2:
        Integ = x**index1*(Value1*x+Value2)**index2
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "x^"+str(index1)+"("+str(Value1)+"x"+"+"+str(Value2)+")^"+str(index2)
    elif Question_No == 3:
        Integ = Value1*x**index1/(x**index2+Value2)**index3
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = str(Value1)+"x^"+str(index1)+"/"+"(x"+str(index2)+"+"+str(Value2)+")^"+str(index3)
    elif Question_No == 4:
        Integ = x*(x-Value1)**index1
        ans = simplify(integrate(Integ))
        out_Integ =  "∫"
        out_Val = "x"+"(x-"+str(Value1)+")^"+str(index1)
    elif Question_No == 5:
        Integ = (Value1*x - Value2)*(Value3*x + Value4)**index1
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "("+str(Value1)+"x"+"-"+str(Value2)+")"+"("+str(Value3)+"x"+"+"+str(Value4)+")^"+str(index1)
    elif Question_No == 6:
        function_no = random.randint(1,5)
        funtcion_No = function_dic1[function_no]
        Integ = funtcion_No**index1
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = str(funtcion_No)+"^"+str(index1)
    elif Question_No == 7:
        function_no = random.randint(1,5)
        function_no_2 = random.randint(1,5)
        function_No = function_dic1[function_no]
        function_No_2 = function_dic1[function_no_2]
        if  function_no == function_no_2:
            Integ = x*function_No**2
            ans = simplify(integrate(Integ))
            out_Integ = "∫"
            out_Val = "x"+str(function_No)+"^2"
        else:
            Integ = x*function_No*function_No_2**index1
            ans = simplify(integrate(Integ))
            out_Integ = "∫"
            out_Val = "x"+str(function_No)+str(function_No_2)+"^"+str(index1)
    elif Question_No == 8:
        function_no = random.randint(1,5)
        function_No = function_dic1[function_no]
        Integ = Value1+function_No**index1
        ans = simplify(integrate(Integ))
        out_Integ =  "∫"
        out_Val = str(Value1)+"+"+str(function_No)+"^"+str(index1)
    elif Question_No == 9:
        function_no = random.randint(1,3)
        function_No = function_dic2[function_no]
        Integ = Value1*function_No
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = str(Value1)+str(function_No)
    else:
        function_no = random.randint(1,3)
        function_No = function_dic2[function_no]
        Integ = Value1+function_No**index1
        ans = ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = str(Value1)+"+"+str(function_No)+"^"+str(index1)
    return ans,out_Val,out_Integ
        
def Standard_Question(Question_No,index1,index2,index3,Value1,Value2,Value3,Value4):


    if Question_No == 1:
        Integ = 1/sqrt(Value1+sqrt(x))
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "1/"+"√"+str(Value1)+"+"+"√x"
    elif Question_No == 2:
        Integ = x**index1*sqrt(x**index2+Value1)
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val  = "x^"+str(index1)+"√(x^"+str(index2)+"+"+str(Value1)+")"
    elif Question_No  == 3:
        Integ = x**index1+Value1*x**index2*x/x**index1+1
        ans = simplify(integrate(Integ))
        out_Val = "x^"+str(index1)+"+"+str(Value1)+"x^"+str(index2)+"x"+"/"+"x^"+str(index1)+"1"
    elif Question_No == 4:
        Integ = x+Value1/Value2*sqrt(x+Value1)
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "x"+"+"+str(Value1)+"/"+str(Value2)+"√(x+"+str(Value1)+")"
    elif Question_No == 5:
        Integ = Value1/exp(x)-exp(-x)
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = str(Value1)+"/"+"e^x"+"-"+"e^-x"
    elif Question_No == 6:
        Integ = x**index1*log(x+1)
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "x^"+str(index1)+"log(x+1)"
    elif  Question_No == 7:
        Integ = log(x)/(x+Value1)**index1
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "log(x)/(x+"+str(Value1)+")^"+str(index1)
    elif Question_No ==  8:
        Integ = log(x+sqrt(x**index1+Value1))
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "log(x+√x^"+str(index1)+"+"+str(Value1)+")"
    elif Question_No == 9:
        Integ = (Value1*x/x**index1+1)*log(x**2+1)
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val= "("+str(Value1)+"x"+"/"+"x^"+str(index1)+"1)"+"log(x^2+1)"
    elif  Question_No == 10:
        Integ = sqrt(x)*exp(sqrt(x))
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "√x"+"e^"+"√x"
    return ans,out_Integ,out_Val

def Difficult_Question(Question_No):
    if Question_No == 1:
        Integ = 1/(x**3+1)
        ans = simplify(integrate(Integ,(x,0,1)))
        out_Integ = "∫"
        Range_min = "０"
        Range_max = "１" 
        out_Val = "1/(x^3+1)"
    elif  Question_No == 2:
        Integ = 1/sin(x)+cos(x)+1
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "1/sin(x)+cos(x)+1"
    elif Question_No == 3:
        Integ = sin(x)/sin(x)+cos(x)
        ans = simplify(integrate(Integ,(x,0,pi/2)))
        out_Integ = "∫"
        Range_min = "0"
        Range_max = "π/2"
        out_Val = "sin(x)/sin(x)+cos(x)"
    elif Question_No == 4:
        Integ = log(x**2+1)
        ans = simplify(integrate(Integ,(x,0,1)))
        out_Integ = "∫"
        Range_min = "0"
        Range_max = "1"
        out_Val = "log(x^2+1"
    elif Question_No == 5:
        Integ = (sqrt(x**2+1))/x
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "√x^2+1/x"
    elif Question_No == 6:
        Integ = x*exp(x)*sin(x)*cos(x)
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "xe^xsin(x)cos(x)"
    elif Question_No == 7:
        Integ = exp(-2*x)*sin(3*x)
        ans = simplify(integrate(Integ))
        out_Integ = "∫"
        out_Val = "e^-2xsin(3x)"
    elif Question_No == 8:
        Integ = 2*x+1/sqrt(x**2+4)
        ans = simplify(integrate(Integ,(x,0,2)))
        out_Integ = "∫"
        Range_min = "0"
        Range_max = "2"
        out_Val =  "2x+1/√x^2+4"
    elif Question_No == 9:
        Integ  = (x+1)*sqrt(1-2*x**2)
        ans = simplify(integrate(Integ,(x,0,1/2)))
        Range_min = "0"
        Range_max = "1/2"
        out_Integ = "∫"
        out_Val = "(x+1)√(1-2x^2)"
    elif Question_No == 10:
        Integ = (1/x**2)*log(sqrt(1+x**2))
        ans = simplify(integrate(Integ,(x,1,sqrt(3))))
        Range_min = "1"
        Range_max = "√3"
        out_Integ = "∫"
        out_Val = "1/x^2log(√1+x^2)"
    return ans,out_Integ,out_Val,Range_min,Range_max

試したこと

global でエラーになっている変数を定義すると
今度はnameerrorになります
ここに問題に対して試したことを記載してください。

補足情報（FW/ツールのバージョンなど）

数回に一回はエラーにならずアプリが表示されることがあります

Answer 1

google翻訳
割り当て前に参照されるローカル変数 'out_Integ'

その変数が定義される前に使用された、というエラーです
if文のどれにも当てはまらなかった場合、その変数は定義されませんな