Use datetime.strftime() on years before 1900? ("require year >= 1900")

Question

I used : utctime = datetime.datetime(1601,1,1) + datetime.timedelta(microseconds = tup[5]) last_visit_time = "Last visit time:"+ utctime.strftime('%Y-%m-%d %H:%M:%S')

But I have the time of 1601, so the error show: ValueError: year=1601 is before 1900; the datetime strftime() methods require year >= 1900

I used python2.7, how can I make it? Thanks a lot!

Answer 1

You can do the following:

>>> utctime.isoformat() '1601-01-01T00:00:00.000050' 

Now if you want to have exactly the same format as above:

iso = utctime.isoformat() tokens = iso.strip().split("T") last_visit_time = "Last visit time: %s %s" % (tokens[0], tokens[1].strip().split(".")[0]) 

Not that there seems to be a patch for strftime to fix this behavior here (not tested)

Answer 2

the isoformat method accepts a parameter specifing the character(s) dividing the date part from the time part of a datetime obj in its representation. Therefore:

>>> utctime.isoformat(" ") '1601-01-01 00:00:00.000050' 

should do it. Furthermore, if you want to remove the microseconds you can operate a split.

>>> utctime.isoformat(" ").split(".")[0] '1601-01-01 00:00:00'