if opt[0]=="-g":
doget=1
if overwrite and doget:
print "Unable overwrite the file while getting it"
print "Make a better selection of command line options"
sys.exit(1)
# If we must overwrite the reference file, we need to
# create it, first, otherwise, just open it for reading
refname="reference.cdf"
if overwrite:
nc=Dataset(refname,"w")
nc.version=sys.version
nc.platform=sys.platform
if 'byteorder' in dir(sys):
nc.byteorder=sys.byteorder
else:
nc.byteorder="Unknown, Python older than 2.0??"
else:
# If there is no local copy of the file, get it from
# its URL
if os.access(refname,os.F_OK)==0 or doget:
thedir="http://starship.python.net/crew/jsaenz/pyclimate/"
thedir=thedir+"references/"
theurl=thedir+pyclimate.tools.pyclimateversion()+"/"+refname
print "There is no local copy of:",refname
print "Do you want me to get it from"
print theurl,"?[no]/yes"
print "Warning: It is about 1.6 Mb"
answer=sys.stdin.readline()
if len(answer)==1:
