§ 1756Petition; Time of Filing; Amendment

The
commencement of proceedings in the case of contests of the
second, third, fourth and fifth classes shall be by petition,
which shall be made and filed, as herein required, within twenty
days after the day of the primary or election, as the case may
be. The petition shall concisely set forth the cause of
complaint, showing wherein it is claimed that the primary or
election is illegal, and after filing may be amended with leave
of court, so as to include additional specifications of
complaint. After any such amendment, a reasonable time shall
be given to the other party to answer.