How can save any input to a list?

Question

def savee():
mylist=[]
x=input("x: ")
mylist.append(x)
print(mylist)
savee()
.................................
when I run this code and insert x then run this code again, mylist is empty, why??
how solve this problem?
think we have a window with a qlineedit and a add button, and give input from the qlineedit, when I write a word in qlineedit and click on add button that added to mylist, if I want to add next word to mylist, last word deleting from mylist,
whats the problem?

Answer 1

You defined the mylist variable in the function scope. Each time you run savee() it resets mylist to blank and appends the input once.
You will always end up with a one-element list which will be inaccessible outside savee()

Answer 2

You have to define mylist before defining the savee() function.

mylist=[]

def savee():
x=input("x: ")
mylist.append(x)
print(mylist)

savee() # will add one item to the list
savee() # will add another item

Answer 3

"""
Obviously, you can replace the 'while' loop with a 'for' loop if you want to iterate a known count... Based on the second version of my example code, you can improve it to support both behaviour in one:
"""

def savee(t="? ", n=0):
tmplist = [ ]

if n == 0:
# loop until empty unser entry
while len(tmplist) == 0 or tmplist[-1] != "":
tmplist.append(input(t))
del tmplist[-1]
else:
# loop n times
for i in range(n):
tmplist.append(input(t))

return tmplist

print(savee("x: ",3))

mylist = savee("x: ")
print(mylist)

Answer 4

you can save string as list this way:
list = input().split()
divide list elements with a space

Answer 5

"""
Even if you use a function, you need a loop to user input several times... inside or outside the function, depending on what is your general use of the function:
"""

mylist = []

def savee():
x = input("x: ")
mylist.append(x)

# exit loop when empty user entry
while len(mylist) == 0 or mylist[-1] != "":
savee()

# maybe delete last item
del mylist[-1]
print(mylist)

# ... or:

def savee():
tmplist = [ ]

# exit loop when empty user entry
while len(tmplist) == 0 or tmplist[-1] != "":
x = input("x: ")
tmplist.append(x)

# maybe delete last item
del tmplist[-1]

return tmplist

print(savee())

mylist = savee()
print(mylist)

Answer 6

thanks, and how can change this code to work correctly?

Answer 7

thannnnnnks allllllll ;))))

Answer 8

you could pass mylist to the function.

def savee(inputlist):
x=input("x: ")
inputlist.append(x)
print(inputlist)
return inputlist

mylist=[]
mylist = savee(mylist)