How do I use elements from 3 lists as inputs?

Question

0.00/5 (No votes)

See more:

The program has 3 lists each with 10 values. I need to take inputs from all 3 lists one by one (or by index?) and apply conditions to those values.

for each output, the inputs must be one from each list. Finally there should be 10 outputs.

Thank you!

What I have tried:

Python

passes = [120,100,80,60,40,20,20,20,0]
not_attempted = [0,20,0,20,40,40,40,20,0,0]
fail = [0,0,20,20,20,40,60,80,100,120]

if pass==120:
  print('A')
elif pass==100:
  print('B')
elif fail>=60:
  print('F')
else:
  print('C')

Posted 8-Dec-20 3:07am

Member 15009895

Updated 21-Aug-21 8:01am

Add a Solution

Comments

Member 15009895 8-Dec-20 11:06am

I passed through two range arguments (0,10) and then the conditional statements. That did the trick.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2020-12-08T03:18:00

Solution 1

You need to an index into each of the lists: Python - Lists - Tutorialspoint[^]
And then set up a loop: Python for Loop Statements - Tutorialspoint[^] to provide you with the index value to access the collections with.

Posted 8-Dec-20 3:18am

OriginalGriff

Comments

Member 15009895 8-Dec-20 11:06am

Thank you

OriginalGriff 8-Dec-20 11:17am

You're welcome!

Richard MacCutchan · Answer 2 · 2020-12-08T03:50:00

Solution 2

Python

for i in range(len(passes)):
    pass = passes[i] # this selects the next item in a list
# add your code here which will be processed for the number of elements in each list.

Posted 8-Dec-20 3:50am

Richard MacCutchan

Comments

Member 15009895 8-Dec-20 11:05am

Thank you guys for the help. I figured it out. Instead of using len, I only passed through two range arguments (0,10) and then the conditional statements. That did the trick.

Richard MacCutchan 8-Dec-20 11:11am

There is a good reason for using len(). It allows you to process a list of any length, which may be important if you receive the list from some external source. Also you do not need the initial zero as that is the default, so range(10) actually means: starting at zero, do ten repeats, incrementing the index counter by one each time. This is all explained at 4. More Control Flow Tools — Python 3.7.9 documentation[^].