I built three functions one for menu, input_plan and show_plane. first I need to put in plan values and when I am done with it and try to choose show_plane function from the menu so it stop working. When I try to write the choice by 2 a number that worked from beging when i tried to show a plan but it requered to first put in a plan value. And now the menu stop working when i put in the same number it shows to be a ValueError. Does any one know how it is possible? Continue reading...
