So this is simple, why can't I run the following code? I've tried many
variances of this, but simply cannot inherit from datetime or
datetime.datetime. I get this on line 3.
TypeError: function takes at most 2 arguments (3 given)
********************************
import datetime
_datetime = datetime.datetime
class MyDateTime(_datetime):
"""
Identical to builtin datetime.datetime, except it accepts
invalid dates and times as input.
"""
_valid = True
def __init__(self, year, month, day, *args, **kw):
try:
_datetime.__init__(self, year, month, day, *args, **kw)
except _datetime.ValueError:
_valid = False
self.year = year
self.month = month
self.day = day
self.args = args
self.kw = kw
******************************** 4 2709
On 2005-08-01, Rob Conner <rt******@gmail.com> wrote: So this is simple, why can't I run the following code? I've tried many variances of this, but simply cannot inherit from datetime or datetime.datetime. I get this on line 3. TypeError: function takes at most 2 arguments (3 given)
I think I posted this question a while back and the problem was
that a datetime instance is not mutable, so the normal method
of deriving a class didn't work....
A quick google... http://groups-beta.google.com/group/...2517ecf6fb2ce/
You need to override __new__ rather than __init__
--
Grant Edwards grante Yow! I'm ANN LANDERS!! I
at can SHOPLIFT!!
visi.com
On 2005-08-01, Rob Conner <rt******@gmail.com> wrote: So this is simple, why can't I run the following code? I've tried many variances of this, but simply cannot inherit from datetime or datetime.datetime. I get this on line 3. TypeError: function takes at most 2 arguments (3 given)
******************************** import datetime _datetime = datetime.datetime
class MyDateTime(_datetime): """ Identical to builtin datetime.datetime, except it accepts invalid dates and times as input. """ _valid = True
def __init__(self, year, month, day, *args, **kw): try: _datetime.__init__(self, year, month, day, *args, **kw) except _datetime.ValueError: _valid = False self.year = year self.month = month self.day = day self.args = args self.kw = kw ********************************
It helps to post the actual code and error message you
are seeing... import datetime class foo(datetime):
.... pass
....
Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: function takes at most 2 arguments (3 given) class foo(datetime.datetime):
.... pass
.... d = foo()
Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: function takes at least 3 arguments (0 given) d = foo(1, 2, 3) d
foo(1, 2, 3, 0, 0) datetime.datetime(1, 2, 3)
datetime.datetime(1, 2, 3, 0, 0)
My guess is that the code you posted is not really the
code you were runnning.
Rob Conner wrote: So this is simple, why can't I run the following code? I've tried many variances of this, but simply cannot inherit from datetime or datetime.datetime. I get this on line 3. TypeError: function takes at most 2 arguments (3 given)
line 3 of the following code or line 3 of the use of the code?
on my box it runs, except that ValueError is not caught by the except.
side question: what is the point of accepting invalid dates?
--
rafi
"Imagination is more important than knowledge."
(Albert Einstein)
gah, yeah that was strange. but i got it now. thanks. side question: what is the point of accepting invalid dates?
thats a long story. but it would be nice to have invalid dates at least
just stored. so i want to try to put a class together that does it. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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