Variables not working in function python (what's wrong in my code)

Question

Variables not working in functions, why? What's wrong in My Code? I checked many times but everything is current. Please Help 🥺

Mode = "Copy"


#mode
def runRclone():
  if Mode == "Copy":
    print ("cpy")
    modeFinal = "copy"
  elif Mode == "Move":
    modeFinal = "move"
  elif Mode == "Check Size":
    modeFinal = "size"
  else:
    modeFinal = "size"
    print("Some Thing is Wrong, Contact me!")

runRclone()

print(modeFinal)

Output

cpy
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-2-7ade1dfbd321> in <module>()
     42 runRclone()
     43 
---> 44 print(modeFinal)

NameError: name 'modeFinal' is not defined

Thavas Antonio · Accepted Answer · 2021-05-19 19:40:14Z

You call your function. modeFinal is defined in your function but not global. You can make your modeFInal global at the start of your function like global modeFinal.

Mode = "Copy"


#mode
def runRclone():
  global modeFinal
  if Mode == "Copy":
    print ("cpy")
    modeFinal = "copy"
  elif Mode == "Move":
    modeFinal = "move"
  elif Mode == "Check Size":
    modeFinal = "size"
  else:
    modeFinal = "size"
    print("Some Thing is Wrong, Contact me!")

runRclone()

print(modeFinal)

Another option would be to return modeFinal in your function then store the function output in variable.

Mode = "Copy"


#mode
def runRclone():
  if Mode == "Copy":
    print ("cpy")
    modeFinal = "copy"
  elif Mode == "Move":
    modeFinal = "move"
  elif Mode == "Check Size":
    modeFinal = "size"
  else:
    modeFinal = "size"
    print("Some Thing is Wrong, Contact me!")
   return modeFinal
mdFinal = runRclone()

print(mdFinal)

Joe Thor · Accepted Answer · 2021-05-19 19:40:50Z

1

modeFinal is not being returned and is scoped to be within the function, so when you call print(modeFinal) it cannot find it. You could return it at the end of your if/elif statement

Mode = "Copy"


#mode
def runRclone():
  if Mode == "Copy":
    print ("cpy")
    modeFinal = "copy"
  elif Mode == "Move":
    modeFinal = "move"
  elif Mode == "Check Size":
    modeFinal = "size"
  else:
    modeFinal = "size"
    print("Some Thing is Wrong, Contact me!")

  return(modeFinal)

modeFinal = runRclone()

print(modeFinal)

answered May 19, 2021 at 19:40

Joe Thor

1,2601 gold badge13 silver badges21 bronze badges

Comments

charles · Accepted Answer · 2021-05-19 19:41:23Z

1

modeFinal is only visible within the scope of your function runRclone(). You could have your function return modeFinal as such :

Mode = "Copy"

#mode
def runRclone():
  if Mode == "Copy":
    print ("cpy")
    modeFinal = "copy"
  elif Mode == "Move":
    modeFinal = "move"
  elif Mode == "Check Size":
    modeFinal = "size"
  else:
    modeFinal = "size"
    print("Some Thing is Wrong, Contact me!")

  return modeFinal

modeFinal = runRclone()

print(modeFinal)

answered May 19, 2021 at 19:41

charles

1,0555 silver badges10 bronze badges

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