In ubuntu, whenever you backsearch for a command, you get fix/usr/lib/python3/dist-packages/percol/info.py:15: SyntaxWarning: invalid escape sequence '/'
the issue is with the logo, where the logo is using \ / as an escape sequence.
It should be like this instead.

-- coding: utf-8 --

doc = """Adds flavor of interactive filtering to the traditional pipe concept of shell.
Try::

$ A | percol | B

and you can display the output of command A and filter it interactively and then pass it to command B.
The interface of percol is highly inspired by anything.el for Emacs.

Full details at https://github.com/mooz/percol"""

version = "0.2.1"

logo = """ __
____ ___ ______________ / /
/ __ \/ _ \/ / / __ \/ /
/ // / / / / // // / /
/ ./\// \/\//
//"""