Writing multiple lists to a file

Question

I have 2 lists and an output file sent to a function I am having an issue with how to do the .write statement.

I have tried using an index, but get list error.

nameList = ['james','billy','kathy']
incomeList = [40000,50000,60000]

I need to search the lists and write the name and income to a file.

  for income in incomeList:
      if income > 40000:
          output.write(str("%10d    %12.2f \n")  # (this is what I can't figure out)))

Where are the names in your example code, don't they matter? What is you cannot figure out? What format do the lines need to be in? — Grismar
– Grismar, Commented Nov 23, 2020 at 5:05
In plain English, what do you think are the steps required to create the desired output line? — Karl Knechtel
– Karl Knechtel, Commented Nov 23, 2020 at 5:20
@Shadowcodder I am trying to get the second half of the .write statement...everything I have tried has errored. — Chris Hall
– Chris Hall, Commented Nov 23, 2020 at 5:20

Abhishek Rai · Accepted Answer · 2021-09-03 12:50:02Z

1

You can do it like this.

nameList = ['james','billy','kathy']
incomeList = [40000,50000,60000]
for k, v in zip(nameList, incomeList):
    if v > 40000:
        print(k,v )

Output :-

 billy 50000
 kathy 60000

edited Sep 3, 2021 at 12:50

answered Nov 23, 2020 at 5:24

Abhishek Rai

2,2474 gold badges26 silver badges49 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Chris Hall Over a year ago

Thank you that worked and explained zip function...yes I am just learning to program python.

Shadowcoder · Accepted Answer · 2020-11-23 05:26:03Z

1

Maybe this is what you want:

for i,income in enumerate(incomeList):
      if income > 40000:
          output.write(str(nameList[i]) )

answered Nov 23, 2020 at 5:26

Shadowcoder

9721 gold badge8 silver badges18 bronze badges

Comments

Siddhant Sukhatankar · Accepted Answer · 2020-11-23 05:27:04Z

0

In the case of 2 lists, I would suggest using a dict.

nameIncomeList = {'james':40000,'billy':50000,'kathy':60000}

For multiple case scenario,

f=open('f1.txt','w')
for i in range(len(nameList)):
    if incomeList[i]>40000:
        f.write(nameList[i]+' '+incomeList[i]+'\n')

f.close()

answered Nov 23, 2020 at 5:27

Siddhant Sukhatankar

551 silver badge11 bronze badges

2 Comments

Chris Hall Over a year ago

thank you , but I was given the lists and can't recombine them

Siddhant Sukhatankar Over a year ago

Then the second solution will help you.

Collectives™ on Stack Overflow

Writing multiple lists to a file

3 Answers 3

1 Comment

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related