How do I add together predefined functions that get a value from an entry?
what I want is the total value of all these, but it will only add them if all are true. what I want is it to add even if one is false.
#The Problem def TotalCost(): qty1= eVal1() qty2= eVal2() qty3= eVal3() qty4= eVal4() qty5= eVal5() qty6= eVal6() qty7= eVal7() qty8= eVal8() qty9= eVal9() totalsum= qty1+qty2+qty3+qty4+qty5+qty6+qty7+qty8+qty9 if totalsum >0: Total.delete(0, END) Total.insert(0, "%.2f" % totalsum) return totalsum Entrys its taking from.
Functions and definitions
value1= IntVar() value2= IntVar() value3= IntVar() value4= IntVar() value5= IntVar() value6= IntVar() value7= IntVar() value8= IntVar() value9= IntVar() value10= IntVar() #Gets Value from entry and gives total def eVal1(): a= value1.get() doughnut = "Strawberry" + " X" results1 = doughnut + str(a) if a>0: b= a*0.99 List1.insert(0, results1) return b def eVal2(): c= value2.get() doughnut = "Custard" + " X" results2 = doughnut + str(c) if c>=0: d= c*0.99 List1.insert(0, results2) return d def eVal3(): e= value4.get() doughnut = "Sugar Ring" + " X" results3 = doughnut + str(e) if e>=0: f= e*0.99 List1.insert(0, results3) return f def eVal4(): g= value5.get() doughnut = "Chocolate Caramel" + " X" results4 = doughnut + str(g) if g>=0: h= g*0.99 List1.insert(0, results4) return h def eVal5(): i= value6.get() doughnut = "Lemon Circle" + " X" results5 = doughnut + str(i) if i>=0: j= i*0.99 List1.insert(0, results5) return j def eVal6(): k= value7.get() doughnut = "Blueberry Blaster" + " X" results6 = doughnut + str(k) if k>=0: l= k*0.99 List1.insert(0, results6) return l def eVal7(): m= value8.get() doughnut = "Strawberry Suprise" + " X" results7 = doughnut + str(m) if m>=0: n= m*0.99 List1.insert(0, results7) return n def eVal8(): o= value9.get() doughnut = "Simple Sugar" + " X" results8 = doughnut + str(o) if o>=0: p= o*0.99 List1.insert(0, results8) return p def eVal9(): q= value10.get() doughnut = "Apple Cinnamon" + " X" results9 = doughnut + str(q) if q>=0: r= q*0.99 List1.insert(0, results9) return r Error message
line 164, in TotalCost totalsum= qty1+qty2+qty3+qty4+qty5+qty6+qty7+qty8+qty9 TypeError: unsupported operand type(s) for +: 'NoneType' and 'float'
