How to open a file?

With the following code, you open and read the content of a file

with open("text.txt", "r") as file:
  print(file.read())

You obtain a list of the lines in the file with this

with open("text.txt", "r") as file:
  print(file.readlines())

You read one line at the time with this

with open("text.txt", "r") as file:
  print(file.readline())

You can print the lines simply like this:

with open("text.txt", "r") as file:
  for line in file:
    print(line)

Write a file

with open("text.txt", "w") as file:
  file.write("Hello world")

Append a text to a file

with open("text.txt", "a") as file:
  file.write("This does not cancel the file content")

Live code video about opening and writing files

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