How to have fancyvrb number every other line starting with the first?

Question

The following MWE using fancyvrb produces line numbers every other line, starting on the second line, like so:

  Writing some test
2
  third line
4 fourth line
  fifth line

so the numbers are 2, 4, 6,.... I would like the numbers to start on the first line and go every other line, as in:

1 Writing some test

3 third line
  fourth line
5 fifth line

How can I achieve this?

MWE:

\documentclass{article}
\usepackage{fancyvrb}
\begin{document}
\begin{Verbatim}[numbers=left,firstnumber=1,stepnumber=2]
Writing some test

third line
fourth line
fifth line
\end{Verbatim}
\end{document}

Answer 1

You can try this small trick. Add an empty line at the beginning of your source code and use firstline=2 to skip that line. I enclose an example and a preview of it.

% run: *latex mal-fancyvrb.tex
\documentclass{article}
\pagestyle{empty}
\parindent=0pt
\usepackage{fancyvrb}
\begin{document}
Text before.
\begin{Verbatim}[numbers=left, firstnumber=1, stepnumber=2, firstline=2]

Writing some test

third line
fourth line
fifth line
\end{Verbatim}
Text after.
\end{document}