def to_python(self,value):
'''get python value from serialized place'''
if isinstance(value,str) or isinstance(value,unicode):
try:
return Dec_coord.fromStr(value)
except:
raise ValidationError("Invalid input for Declination:"+str(value))
elif isinstance(value, Dec_coord) or value is None:
return value
else:
raise TypeError("unable to convert to Dec_coord")
def to_python(self, value):
'''get python value from serialized place'''
if isinstance(value, str) or isinstance(value, unicode):
try:
return Dec_coord.fromStr(value)
except:
raise ValidationError("Invalid input for Declination:" +
str(value))
elif isinstance(value, Dec_coord) or value is None:
return value
else:
raise TypeError("unable to convert to Dec_coord")
def parse_first_coords(coord_file):
"""parse the coordinates of the first object
in the coordinate file and return a Coords object"""
with open(coord_file) as cf:
line = cf.readline()
while line and (line.isspace() or line.startswith("#")):
# skip over blank lines and comments
line = cf.readline()
if not line:
raise Exception("Unable to parse coordinates") # TODO use better exception type
rastr, decstr = line.split()[0:2] # assume seperationg by whitespace and no internal whitespace
ra = RA_coord.fromStr(rastr)
dec = Dec_coord.fromStr(decstr)
return Coords(ra, dec)
def parse_first_coords(coord_file):
'''parse the coordinates of the first object
in the coordinate file and return a Coords object'''
with open(coord_file) as cf:
line = cf.readline()
while line and (line.isspace() or line.startswith('#')):
#skip over blank lines and comments
line = cf.readline()
if not line:
raise Exception(
"Unable to parse coordinates") #TODO use better exception type
rastr, decstr = line.split()[
0:2] #assume seperationg by whitespace and no internal whitespace
ra = RA_coord.fromStr(rastr)
dec = Dec_coord.fromStr(decstr)
return Coords(ra, dec)
def compress(self, data_list):
'''compress field into RA_coord'''
if not data_list or data_list == [None, None, None]:
return None
return Dec_coord(*data_list)
