Writing to Files

To write to a file in Python, use open() with "w" (write) or "a" (append) mode.

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

• "w" creates the file if it doesn’t exist or overwrites it.
• "a" adds content to the end of the file.

Writing multiple lines:

lines = ["First line\n", "Second line\n"]
with open("output.txt", "w") as file:
  file.writelines(lines)