code: def which_bin(exes):
      '''
      Scan over some possible executables and return the first one that is found
      '''
      if not isinstance(exes, Iterable):
          return None
      for exe in exes:
          path = which(exe)
          if not path:
              continue
          return path
      return Nonf which_bin(exes):
      '''
      Scan over some possible executables and return the first one that is found
      '''
      if not isinstance(exes, Iterable):
          return None
      for exe in exes:
          path = which(exe)
          if not path:
              continue
          return path
      return None
docs: Scan over some possible executables and return the first one that is found