Conversion of String to Date Type
pink at odahoda.de
Fri Sep 17 20:38:42 CEST 2004
Keith Bolton wrote:
> Hello All,
> I've joined the wxPython list, but this is my first post on the python
> list and it's good to be here :^) Anyway...
> My question is relating to Date equality. I am checking if two string
> representations of dates are less than or equal to eachother. The issue
> that I am having is that the date strings, ex.
> 09/15/04 is evaluated as > 09/14/04. However, when the last two digits
> for the year are changed, like this 09/15/04 is considered > 09/15/05.
> I thought this had something to do with evaluating two strings. Could
> this be the case, if so does someone know of a way to convert those
> strings into a Date type object?
String comparision doesn't know anything about the special semantics of
dates, and e.g. "09/15/04" is lexically before "10/15/03".
- use something like YYYYMMDD, YY/MM/DD... as string representation,
these will be sorted correctly (which is a good habit anyway, e.g. if
you have a bunch of files with a date in the filename)
- try "ts = time.mktime(int(s[6:8])+2000, int(s[3:5]), int(s[0:2]))" to
create timestamps and compare these. The datetime modules may have more
useful functions (haven't used it yet, time was sufficient for me).
- where do these strings come from? Perhaps there is an underlying
timestamp or datetime object that you could use instead of "string
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