arr = [1, 2, 3]
print("type(arr)=",type(arr))
arr[1] = 100500
for i in range(len(arr)):
    print(i," ",arr[i])

trr = (1, 2, 3)
print("type(trr)=",type(trr))
for i in range(len(trr)):
    print(i," ",trr[i])

print(id(arr))
print(id(trr))
trr[1] = 100500

type(arr)= <class 'list'>
0   1
1   100500
2   3
type(trr)= <class 'tuple'>
0   1
1   2
2   3
31557752
31558312
Traceback (most recent call last):
  File "C:/web_tester/Study_NotWTProject/StudyDicts.py", line 14, in <module>
    trr[1] = 100500
TypeError: 'tuple' object does not support item assignment

Process finished with exit code 1

Traceback (most recent call last):
type(arr)= <class 'list'>
0   1
  File "C:/web_tester/Study_NotWTProject/StudyDicts.py", line 14, in <module>
1   100500
    trr[1] = 100500
2   3
TypeError: 'tuple' object does not support item assignment
type(trr)= <class 'tuple'>
0   1
1   2
2   3
7637112
7637672

Process finished with exit code 1

type(arr)= <class 'list'>
Traceback (most recent call last):
  File "C:/web_tester/Study_NotWTProject/StudyDicts.py", line 14, in <module>
    trr[1] = 100500
0   1
TypeError: 'tuple' object does not support item assignment
1   100500
2   3
type(trr)= <class 'tuple'>
0   1
1   2
2   3
5998712
5999272

Process finished with exit code 1