def stns_near_zip(zip, year, N=20, id_filter=None):
    try:
        (lat, lon) = coords_from_zip(zip)
        stns_near_lat_lon(lat, lon, year, N, id_filter)
    except ImportError:
        print "pyzipcode is not available -> try using stns_near_lat_lon()"
def stns_with_fld_zip(fld, zip, year, N=20):
    try:
        (lat, lon) = coords_from_zip(zip)
        stns_with_fld(fld, lat, lon, year, N)
    except ImportError:
        print "pyzipcode is not available -> try using stns_near_lat_lon()"
def stns_with_fld_zip(fld, zip, year, N=20):
    try:
        (lat, lon) = coords_from_zip(zip)
        stns_with_fld(fld, lat, lon, year, N)
    except ImportError:
        print "pyzipcode is not available -> try using stns_near_lat_lon()"
def stns_near_zip(zip, year, N=20, id_filter=None):
    try:
        (lat, lon) = coords_from_zip(zip)
        stns_near_lat_lon(lat, lon, year, N, id_filter)
    except ImportError:
        print "pyzipcode is not available -> try using stns_near_lat_lon()"