Typeerror: 'Tuple' Object Does Not Support Item Assignment When Swapping Values
I Am Writing a Simple Sort Program in Python and Encounter This Error. I Want to Swap List Elements but It Returns an Error. I Am Attaching the Error and...
I am writing a simple sort program in python and encounter this error. I want to swap list elements but it returns an error. I am attaching the error and program in question below.
list[i+1] = list[i]
TypeError: 'tuple' object does not support item assignment
Code:
def my_sort(list):
for index in range(1,len(list)):
value=list[index]
i=index-1
while i>=0:
if value<list[i]:
list[i+1] = list[i]
list[i]=value
i=i-1
else:
break
return
input_list=eval(input("Enter list items"))
my_sort(input_list)
print(input_list)
3 Answers
Evaluating "1,2,3" results in (1, 2, 3), a tuple. As you've discovered, tuples are immutable. Convert to a list before processing.
or simply assign the whole tuple itself, instead of changing elements inside tuple.
example: want to add 'count' to 1st element of the 'i-th' tuple :
tup[i] = (tup[i][0] + count, tup[i][1])
To anyone googling this error: check for unwanted commas in your code. For example,
arr = np.zeros(n),
arr[i] = something
will throw this error.
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