How can I remove a trailing newline in Python?

Question

What is the Python equivalent of Perl's `chomp` function, which removes the last character of a string if it is a newline?

Answer 1

To remove spaces or newlines from the beginning and end of a string, use the function strip(). Additionally, rstrip() removes them just from the end of the string and lstrip() removes them just from the beginning of the string.

For example:

> str = " Hello, world! \n"

> str.strip()

>>> "Hello, world!"

> str.rstrip()

>>> " Hello, world!"

> str.lstrip()

>>> "Hello, world! \n"