# Listing package showing newline after the last line of code

I haven't been able to suppress this newline only with configuration. In the listings documentation it is said that the showlines option if set to false won't let the newline appears, but that is not working for me. How to make it work?

I can make it work by inserting latex comments inside the listing, but that is kind of annoying, specially if there is a option in the package to do it.

Update:

Minimum working example as requested:

\documentclass[10pt,a4paper]{book}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{listings}
\usepackage{color}

% "listing" definitions ========================================
\definecolor{mygreen}{rgb}{0,0.6,0}
\definecolor{mygray}{rgb}{0.95,0.95,0.95}
\definecolor{mymauve}{rgb}{0.58,0,0.82}
\definecolor{pink}{rgb}{0.8, 0.55, 0.6}

\lstset{ %
backgroundcolor=\color{mygray},   % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}
basicstyle=\footnotesize,        % the size of the fonts that are used for the code
breakatwhitespace=false,         % sets if automatic breaks should only happen at whitespace
breaklines=true,                 % sets automatic line breaking
captionpos=b,                    % sets the caption-position to bottom
deletekeywords={...},            % if you want to delete keywords from the given language
extendedchars=true,              % lets you use non-ASCII characters; for 8-bits encodings only, does not work with UTF-8
frame=single,                    % adds a frame around the code
keepspaces=true,                 % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
keywordstyle=\color{blue}\bfseries,       % keyword style
language=Python,                 % the language of the code
morekeywords={*,...},            % if you want to add more keywords to the set
numbers=left,                    % where to put the line-numbers; possible values are (none, left, right)
numbersep=5pt,                   % how far the line-numbers are from the code
numberstyle=\color{black}, % the style that is used for the line-numbers
rulecolor=\color{black},         % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
showspaces=false,                % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
showlines=false,
showstringspaces=false,          % underline spaces within strings only
showtabs=false,                  % show tabs within strings adding particular underscores
stepnumber=1,                    % the step between two line-numbers. If it's 1, each line will be numbered
stringstyle=\color{mymauve},     % string literal style
tabsize=2,                       % sets default tabsize to 2 spaces
basicstyle=\footnotesize\ttfamily,
title=\lstname                   % show the filename of files included with \lstinputlisting; also try caption instead of title
}

\begin{document}

\begin{lstlisting}
{
}
\end{lstlisting}

\end{document}

-
Welcome to TeX.SX! Please help us to help you and add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. – Christian Hupfer Jun 11 '14 at 15:09
question updated! – marcelocra Jun 11 '14 at 15:19
Please try and reduce the problem. Many of the packages you have are not related to your problem. Not only does it make it easier for people to help you, it sometimes also lets you discover any errors. – zeroth Jun 11 '14 at 15:25
True. Updated again. Thanks! – marcelocra Jun 11 '14 at 15:28

\begin{lstlisting}

\end{lstlisting} should start in the first column!