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I'm stuck trying to add a date_accepted property to an upload node that represents a scientific paper. Previously, I would have just added a timetree node. However, py2neo v4 no longer supports GregorianCalendar (shame). How would I convert this code snippet to use one of the new temporal data types? I've looked at the docs & online but I'm not yet savvy enough I'm afraid.

from datetime import date, datetime # ??? how to use this...

def getAccepted(year_accepted, month, day):
 with open('/home/pmy/pdf/id.txt') as f:
 id = f.read()
 matcher = NodeMatcher(graph)
 upload = matcher.match("Upload", id = id).first()

 a = year_accepted+month+day
 d = datetime.strptime(a, '%Y%m%d').strftime('%Y-%m-%d') 
 # >>> HOW TO CONVERT d TO A TEMPORAL DATA TYPE HERE? <<< 
 try:
 graph.merge(upload)
 upload['accepted_date']=d
 graph.push(upload)

 except IndexError as e:
 print("type error: " + str(e))
 pass
 return 0

This works but it pushes the datetime string whereas I want to push a neotime temporal date...

It is possible to insert the datetime variable d above into something like this query below, which also works, but I'm winging this & suspect there's a better way...

query='''UNWIND [date(param)] AS date RETURN date'''
result=graph.run(query, param=d).data()
print(result)

which returns

['date': neotime.Date(2010, 10, 23)]

So I could maybe extract the value & push that to the graph? Is this what the developers intended? The Docs are terse and aimed at proper programmers so IDK

Maybe

 accepted=result[0].get('date') # <class 'neotime.Date'>

& push that to the graph perhaps?

The py2neo v4 neotime temporal types are very recent & there is not much documentation, or basic tutorials to adapt afaik. Hence this long-winded post. Anyone out there with experience care to comment?