For loop to print old value and sum of old value

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up vote
6
down vote

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I am using for loop in python to display old value and sum of new value. Following is my code.



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]
sum = 0
for val in numbers:

 sum = sum+val
print(sum)


and the output of this loop is showing 48



But i want to show output like 



6
6+5 = 11
11+3 = 14
14+8 = 22
22+4 = 26
26+2 = 28
28+5 = 33
33+4 = 37
37+11 = 48


Please let me know what i need to change in my code to display output like this.






python python-3.x







share|improve this question







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Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • 2




    First thing first: Your print statement is outside the loop. This means it will only execute once.
    – Anton vBR
    Nov 18 at 8:27










  • @Anton vBR But when i print statement inside the loop then following error is showing :- File "<module1>", line 5 print(sum) ^ IndentationError: unindent does not match any outer indentation level
    – Ramona
    Nov 18 at 8:30







  • 2




    Python forces you to use the correct indentation. Be careful that you have the right amount of spaces/tabs.
    – Anton vBR
    Nov 18 at 8:31










  • and dont mix spaces and tabs in python3.x
    – Patrick Artner
    Nov 18 at 8:57














up vote
6
down vote

favorite
1












I am using for loop in python to display old value and sum of new value. Following is my code.



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]
sum = 0
for val in numbers:

 sum = sum+val
print(sum)


and the output of this loop is showing 48



But i want to show output like 



6
6+5 = 11
11+3 = 14
14+8 = 22
22+4 = 26
26+2 = 28
28+5 = 33
33+4 = 37
37+11 = 48


Please let me know what i need to change in my code to display output like this.






python python-3.x







share|improve this question







New contributor




Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.















  • 2




    First thing first: Your print statement is outside the loop. This means it will only execute once.
    – Anton vBR
    Nov 18 at 8:27










  • @Anton vBR But when i print statement inside the loop then following error is showing :- File "<module1>", line 5 print(sum) ^ IndentationError: unindent does not match any outer indentation level
    – Ramona
    Nov 18 at 8:30







  • 2




    Python forces you to use the correct indentation. Be careful that you have the right amount of spaces/tabs.
    – Anton vBR
    Nov 18 at 8:31










  • and dont mix spaces and tabs in python3.x
    – Patrick Artner
    Nov 18 at 8:57












up vote
6
down vote

favorite
1









up vote
6
down vote

favorite
1






1





I am using for loop in python to display old value and sum of new value. Following is my code.



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]
sum = 0
for val in numbers:

 sum = sum+val
print(sum)


and the output of this loop is showing 48



But i want to show output like 



6
6+5 = 11
11+3 = 14
14+8 = 22
22+4 = 26
26+2 = 28
28+5 = 33
33+4 = 37
37+11 = 48


Please let me know what i need to change in my code to display output like this.






python python-3.x







share|improve this question







New contributor




Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I am using for loop in python to display old value and sum of new value. Following is my code.



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]
sum = 0
for val in numbers:

 sum = sum+val
print(sum)


and the output of this loop is showing 48



But i want to show output like 



6
6+5 = 11
11+3 = 14
14+8 = 22
22+4 = 26
26+2 = 28
28+5 = 33
33+4 = 37
37+11 = 48


Please let me know what i need to change in my code to display output like this.






python python-3.x




python python-3.x






share|improve this question







New contributor




Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






New contributor




Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked Nov 18 at 8:25









Ramona

414




414




New contributor




Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Ramona is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







  • 2




    First thing first: Your print statement is outside the loop. This means it will only execute once.
    – Anton vBR
    Nov 18 at 8:27










  • @Anton vBR But when i print statement inside the loop then following error is showing :- File "<module1>", line 5 print(sum) ^ IndentationError: unindent does not match any outer indentation level
    – Ramona
    Nov 18 at 8:30







  • 2




    Python forces you to use the correct indentation. Be careful that you have the right amount of spaces/tabs.
    – Anton vBR
    Nov 18 at 8:31










  • and dont mix spaces and tabs in python3.x
    – Patrick Artner
    Nov 18 at 8:57












  • 2




    First thing first: Your print statement is outside the loop. This means it will only execute once.
    – Anton vBR
    Nov 18 at 8:27










  • @Anton vBR But when i print statement inside the loop then following error is showing :- File "<module1>", line 5 print(sum) ^ IndentationError: unindent does not match any outer indentation level
    – Ramona
    Nov 18 at 8:30







  • 2




    Python forces you to use the correct indentation. Be careful that you have the right amount of spaces/tabs.
    – Anton vBR
    Nov 18 at 8:31










  • and dont mix spaces and tabs in python3.x
    – Patrick Artner
    Nov 18 at 8:57







2




2




First thing first: Your print statement is outside the loop. This means it will only execute once.
– Anton vBR
Nov 18 at 8:27




First thing first: Your print statement is outside the loop. This means it will only execute once.
– Anton vBR
Nov 18 at 8:27












@Anton vBR But when i print statement inside the loop then following error is showing :- File "<module1>", line 5 print(sum) ^ IndentationError: unindent does not match any outer indentation level
– Ramona
Nov 18 at 8:30





@Anton vBR But when i print statement inside the loop then following error is showing :- File "<module1>", line 5 print(sum) ^ IndentationError: unindent does not match any outer indentation level
– Ramona
Nov 18 at 8:30





2




2




Python forces you to use the correct indentation. Be careful that you have the right amount of spaces/tabs.
– Anton vBR
Nov 18 at 8:31




Python forces you to use the correct indentation. Be careful that you have the right amount of spaces/tabs.
– Anton vBR
Nov 18 at 8:31












and dont mix spaces and tabs in python3.x
– Patrick Artner
Nov 18 at 8:57




and dont mix spaces and tabs in python3.x
– Patrick Artner
Nov 18 at 8:57












1 Answer
1






active

oldest

votes

















up vote
9
down vote



accepted










You could just iterate through elements in list, printing the required in the loop and updating the total:



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]

total = numbers[0]
print(f'total')
for val in numbers[1:]:
 print(f'total + val = total + val')
 total += val

# 6
# 6 + 5 = 11
# 11 + 3 = 14 
# 14 + 8 = 22 
# 22 + 4 = 26 
# 26 + 2 = 28 
# 28 + 5 = 33 
# 33 + 4 = 37 
# 37 + 11 = 48





share|improve this answer


















  • 1




    @AntonvBR You're right sum is an in-built function and shouldn't be used as variable name
    – Vishnudev
    Nov 18 at 8:32











  • There should be a printout before the loop
    – Mad Physicist
    Nov 18 at 8:33










  • @Austin thanks its working. But one question in my mind. Please let me know what is use of f in print(f'sum + val = sum + val')?
    – Ramona
    Nov 18 at 8:35






  • 1




    @Ramona, They are f-strings in Python, just another way of formatting strings. You can specify variable in and Python will display it's value for you.
    – Austin
    Nov 18 at 8:36










  • @Austin. Yes, OP's output shows 6 first
    – Mad Physicist
    Nov 18 at 8:39










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1 Answer
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active

oldest

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up vote
9
down vote



accepted










You could just iterate through elements in list, printing the required in the loop and updating the total:



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]

total = numbers[0]
print(f'total')
for val in numbers[1:]:
 print(f'total + val = total + val')
 total += val

# 6
# 6 + 5 = 11
# 11 + 3 = 14 
# 14 + 8 = 22 
# 22 + 4 = 26 
# 26 + 2 = 28 
# 28 + 5 = 33 
# 33 + 4 = 37 
# 37 + 11 = 48





share|improve this answer


















  • 1




    @AntonvBR You're right sum is an in-built function and shouldn't be used as variable name
    – Vishnudev
    Nov 18 at 8:32











  • There should be a printout before the loop
    – Mad Physicist
    Nov 18 at 8:33










  • @Austin thanks its working. But one question in my mind. Please let me know what is use of f in print(f'sum + val = sum + val')?
    – Ramona
    Nov 18 at 8:35






  • 1




    @Ramona, They are f-strings in Python, just another way of formatting strings. You can specify variable in and Python will display it's value for you.
    – Austin
    Nov 18 at 8:36










  • @Austin. Yes, OP's output shows 6 first
    – Mad Physicist
    Nov 18 at 8:39














up vote
9
down vote



accepted










You could just iterate through elements in list, printing the required in the loop and updating the total:



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]

total = numbers[0]
print(f'total')
for val in numbers[1:]:
 print(f'total + val = total + val')
 total += val

# 6
# 6 + 5 = 11
# 11 + 3 = 14 
# 14 + 8 = 22 
# 22 + 4 = 26 
# 26 + 2 = 28 
# 28 + 5 = 33 
# 33 + 4 = 37 
# 37 + 11 = 48





share|improve this answer


















  • 1




    @AntonvBR You're right sum is an in-built function and shouldn't be used as variable name
    – Vishnudev
    Nov 18 at 8:32











  • There should be a printout before the loop
    – Mad Physicist
    Nov 18 at 8:33










  • @Austin thanks its working. But one question in my mind. Please let me know what is use of f in print(f'sum + val = sum + val')?
    – Ramona
    Nov 18 at 8:35






  • 1




    @Ramona, They are f-strings in Python, just another way of formatting strings. You can specify variable in and Python will display it's value for you.
    – Austin
    Nov 18 at 8:36










  • @Austin. Yes, OP's output shows 6 first
    – Mad Physicist
    Nov 18 at 8:39












up vote
9
down vote



accepted







up vote
9
down vote



accepted






You could just iterate through elements in list, printing the required in the loop and updating the total:



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]

total = numbers[0]
print(f'total')
for val in numbers[1:]:
 print(f'total + val = total + val')
 total += val

# 6
# 6 + 5 = 11
# 11 + 3 = 14 
# 14 + 8 = 22 
# 22 + 4 = 26 
# 26 + 2 = 28 
# 28 + 5 = 33 
# 33 + 4 = 37 
# 37 + 11 = 48





share|improve this answer














You could just iterate through elements in list, printing the required in the loop and updating the total:



numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]

total = numbers[0]
print(f'total')
for val in numbers[1:]:
 print(f'total + val = total + val')
 total += val

# 6
# 6 + 5 = 11
# 11 + 3 = 14 
# 14 + 8 = 22 
# 22 + 4 = 26 
# 26 + 2 = 28 
# 28 + 5 = 33 
# 33 + 4 = 37 
# 37 + 11 = 48






share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 18 at 8:41

























answered Nov 18 at 8:29









Austin

8,3663828




8,3663828







  • 1




    @AntonvBR You're right sum is an in-built function and shouldn't be used as variable name
    – Vishnudev
    Nov 18 at 8:32











  • There should be a printout before the loop
    – Mad Physicist
    Nov 18 at 8:33










  • @Austin thanks its working. But one question in my mind. Please let me know what is use of f in print(f'sum + val = sum + val')?
    – Ramona
    Nov 18 at 8:35






  • 1




    @Ramona, They are f-strings in Python, just another way of formatting strings. You can specify variable in and Python will display it's value for you.
    – Austin
    Nov 18 at 8:36










  • @Austin. Yes, OP's output shows 6 first
    – Mad Physicist
    Nov 18 at 8:39












  • 1




    @AntonvBR You're right sum is an in-built function and shouldn't be used as variable name
    – Vishnudev
    Nov 18 at 8:32











  • There should be a printout before the loop
    – Mad Physicist
    Nov 18 at 8:33










  • @Austin thanks its working. But one question in my mind. Please let me know what is use of f in print(f'sum + val = sum + val')?
    – Ramona
    Nov 18 at 8:35






  • 1




    @Ramona, They are f-strings in Python, just another way of formatting strings. You can specify variable in and Python will display it's value for you.
    – Austin
    Nov 18 at 8:36










  • @Austin. Yes, OP's output shows 6 first
    – Mad Physicist
    Nov 18 at 8:39







1




1




@AntonvBR You're right sum is an in-built function and shouldn't be used as variable name
– Vishnudev
Nov 18 at 8:32





@AntonvBR You're right sum is an in-built function and shouldn't be used as variable name
– Vishnudev
Nov 18 at 8:32













There should be a printout before the loop
– Mad Physicist
Nov 18 at 8:33




There should be a printout before the loop
– Mad Physicist
Nov 18 at 8:33












@Austin thanks its working. But one question in my mind. Please let me know what is use of f in print(f'sum + val = sum + val')?
– Ramona
Nov 18 at 8:35




@Austin thanks its working. But one question in my mind. Please let me know what is use of f in print(f'sum + val = sum + val')?
– Ramona
Nov 18 at 8:35




1




1




@Ramona, They are f-strings in Python, just another way of formatting strings. You can specify variable in and Python will display it's value for you.
– Austin
Nov 18 at 8:36




@Ramona, They are f-strings in Python, just another way of formatting strings. You can specify variable in and Python will display it's value for you.
– Austin
Nov 18 at 8:36












@Austin. Yes, OP's output shows 6 first
– Mad Physicist
Nov 18 at 8:39




@Austin. Yes, OP's output shows 6 first
– Mad Physicist
Nov 18 at 8:39










Ramona is a new contributor. Be nice, and check out our Code of Conduct.









 

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