Section 301. Transitory actions; venue

An action, other than an action to establish a mechanic's lien on real
  property, shall be brought:
    (a)  in  the  district  in  which  one  of  the parties resides at the
  commencement thereof; or
    (b) if no party then resides in such  district,  in  the  district  in
  which  one  of  the  parties  has  regular employment or a place for the
  regular transaction of business; or
    (c) if no party has such employment or place of business  within  such
  district, in the district in which the cause of action arose; or
    (d) if none of the foregoing are applicable, in any district.