Code not working showing typeerror and runtime error

#1

a=input(“enter a list”)
sum1=0
print(a)
for i in a:
sum1+=i
if sum1>0:
print (i)
elif sum1<0:
break
else:
pass

#2

For reading a list from input you must use the following statement:
a = [num for num in input.split()]

The first line in your code wrongly assigns a list.

#3

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#4

i have tried using that code even that you suggested but the compiler still showing same error. I tried using on python idle and jupyter notebook and that worked fine on these platforms.