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Writing text files

Warming up

Execute the following program. Explain what happens.

names = ['Adam', 'Bob', 'Charlie']

f = open('boy_names.txt', 'w')
for name in names:
    f.write(name + '\n')
f.close()

Remove the + '\n' from the code and run the program again. What happens?

Exercise 1

Which are correct commands to work with files?

  • for line in open(filename):
  • f = open(filename, 'w')
  • open(filename).writelines(out)
  • f.close()

The Challenge: Write a table

Given is the following data:

names = ["Emma", "Olivia", "Sophia", "Isabella", 
         "Ava", "Mia", "Emily"]
numbers = [20799, 19674, 18490, 16950, 
           15586, 13442, 12562]

Write a program that writes all names into a single text file.

Extra Challenges

  • Write each name into a separate line.
  • Write the numbers into the same file.
  • Write each number into the same line as the corresponding name.