How to print a single backslash?

Question

When I write print('\') or print("\") or print("'\'"), Python doesn't print the backslash \ symbol. Instead it errors for the first two and prints '' for the second. What should I do to print a backslash?

Answer 1

You need to escape your backslash by preceding it with, yes, another backslash:

print("\\")

And for versions prior to Python 3:

print "\\"

The \ character is called an escape character, which interprets the character following it differently. For example, n by itself is simply a letter, but when you precede it with a backslash, it becomes \n, which is the newline character.

As you can probably guess, \ also needs to be escaped so it doesn't function like an escape character. You have to... escape the escape, essentially.

See the Python 3 documentation for string literals.

Answer 2

A backslash needs to be escaped with another backslash.

print('\\')

Answer 3

A hacky way of printing a backslash that doesn't involve escaping is to pass its character code to chr:

>>> print(chr(92))
\

Answer 4

You should escape it with another backslash \:

print('\\')

Answer 5

print(fr"\{''}")

or how about this

print(r"\ "[0])