Python Program Error

I cannot get this program to run correctly to output the message.

class Bug:

def $\_\_$init$\_\_($self$,$ name, num$\_$legs, num$\_$wings$)$:

self.name $=$ name

self.num$\_$legs $=$ num$\_$legs

self.num$\_$wings $=$ num$\_$wings

def get$\_$name$($self$)$:

return self.name

def set$\_$name$($self$,$ name$)$:

self.name $=$ name

def get$\_$num$\_$legs$($self$)$:

return self.num$\_$legs

def set$\_$num$\_$legs$($self$,$ num$\_$legs$)$:

self.num$\_$legs $=$ num$\_$legs

def get$\_$num$\_$wings$($self$)$:

return self.num$\_$wings

def set$\_$num$\_$wings$($self$,$ num$\_$wings$)$:

self.num$\_$wings $=$ num$\_$wings

def $\_\_$str$\_\_($self$)$:

return f$"$This is a $\{$self$.$name$\}.$ It has $\{$self$.$num$\_$legs$\}$ legs and $\{$self$.$num$\_$wings$\}$ wings."

class Spider$($Bug$)$:

def $\_\_$init$\_\_($self$)$:

super$($Spider$,$ self$).\_\_$init$\_\_("$Spider$",8,8)$

def $\_\_$str$\_\_($self$)$:

self.message $=$ super$($Spider$,$ self$).\_\_$str$\_\_()$

self.message $+="$

The golden orb weaver has a mild venom that is not poisonous to humans."

return message

class Grasshopper$($Bug$)$:

def $\_\_$init$\_\_($self$)$:

super$().\_\_$init$\_\_("$Grasshopper$",6,4)$

self.fact $=$ "Grasshoppers are common in the Everglades and play a vital role in the ecosystem."

def $\_\_$str$\_\_($self$)$:

self.message $=$ super$($Grasshopper$,$ self$).\_\_$str$\_\_()$

self.message $+="$

Grasshoppers are common in the Everglades and play a vital role in the ecosystem."

return message

class Tester:

def $\_\_$init$\_\_($self$)$:

self.bug $=$ Bug$("$Millipede$",1000,0)$

self.spider $=$ Spider$()$

self.grasshopper $=$ Grasshopper$()$

def print$\_$info$($self$)$:

print$($self$.$bug$)$

print$($self$.$spider$)$

print$($self$.$spider.message$)$

print$($self$.$grasshopper$)$

print$($self$.$grasshopper.message$)$

if $\_\_$name$\_\_=="\_\_$main$\_\_"$:

tester $=$ Tester$()$

tester.print$\_$info$()$