def _add_basic_metadata(cr, creator):
"""Add CREATOR and DATE keywords to the crate.
Parameters
----------
cr : Crate
The crate to add the keywords to.
creator : str
The value of the CREATOR keyword.
Notes
-----
The current time is used for the DATE keyword, using
the FITS-approved format (YYYY-MM-DDTHH:MM:SS). There is
no attempt to convert the timezone to UTC.
"""
key1 = pycrates.CrateKey()
key1.name = "CREATOR"
key1.value = creator
key1.desc = "tool that created this output"
cr.add_key(key1)
key2 = pycrates.CrateKey()
key2.name = "DATE"
key2.value = time.strftime(_fits_time_fmt)
key2.desc = "Date and time of file creation"
cr.add_key(key2)
def create_key(kname, kval, desc=None):
store[kname] = crates.CrateKey()
store[kname].name = kname
if desc != None:
store[kname].desc = desc
if 1 != store[kname].load(kval):
raise RuntimeError, "Unable to set key %s to %g" % (name, kval)
if 1 != crates.add_key(cr, store[kname]):
raise RuntimeError, "Unable to add key %s to Crates." % kname
def write_key(crate, name, value, comment, units=""):
"""
Wrapper around crate key creation. Borrowed from srcflux
"""
kw = pycrates.CrateKey()
kw.name = name
kw.value = value
kw.desc = comment
kw.unit = units
crate.add_key(kw)
def _set_key(crate, name, val, fix_type=False, dtype=str):
"""
checked for new crates
"""
key = pycrates.CrateKey()
key.name = str(name).strip().upper()
if fix_type:
val = dtype(val)
key.value = val
pycrates.add_key(crate, key)