how to rectify error - unsupported operand in python-CodePudding

Traceback (most recent call last):
  File "C:\Users\Admin\Desktop\Python\proj.py", line 10, in <module>
    average = total/5
              ~~~~~^~
TypeError: unsupported operand type(s) for /: 'list' and 'int'

my program

language = [68, 46, 75, 85, 95 ]
english = [77, 84, 65, 90, 85]
math = [65, 55, 68, 87,98]
science = [78, 54, 87, 87, 89]
social = [76, 78, 86, 98, 89]
total = language   English   math   science   social
average = total/5
print ( "Average", average)

answers to solve this? I am a beginner for python learning.

CodePudding user response：

In the code you posted, the variable total is the result of concatenating five lists together. This is why you are getting the error "unsupported operand type(s) for /: 'list' and 'int'".

To fix the error, you need to add up the elements of the lists and store the result in a variable, and then divide that variable by the integer 5. You can do this using a loop or by using the built-in sum() function.

For example:

language = [68, 46, 75, 85, 95 ]
english = [77, 84, 65, 90, 85]
math = [65, 55, 68, 87,98]
science = [78, 54, 87, 87, 89]
social = [76, 78, 86, 98, 89]

total_sum = sum(language)   sum(english)   sum(math)   sum(science)   sum(social)
average = total_sum / 5
print("Average", average)

Alternatively, you could use a loop to iterate over the elements of the lists and add them up manually.