Update of /cvsroot/python/python/nondist/sandbox/datetime
In directory sc8-pr-cvs1:/tmp/cvs-serv14891
Modified Files:
datetime.py doc.txt obj_date.c obj_datetime.c test_both.py
Log Message:
The behavior of these objects in Boolean contexts wasn't documented or
tested, and differed between the Python and C implementations. Repaired
all that. I'm not sure it's of real value that timdelta(0) and time(0)
are considered false, and am especially dubious of the latter.
Index: datetime.py
===================================================================
RCS file: /cvsroot/python/python/nondist/sandbox/datetime/datetime.py,v
retrieving revision 1.80
retrieving revision 1.81
diff -C2 -d -r1.80 -r1.81
*** datetime.py 7 Dec 2002 19:17:34 -0000 1.80
--- datetime.py 7 Dec 2002 19:51:18 -0000 1.81
***************
*** 464,467 ****
--- 464,472 ----
return hash((self.__days, self.__seconds, self.__microseconds))
+ def __nonzero__(self):
+ return (self.__days != 0 or
+ self.__seconds != 0 or
+ self.__microseconds != 0)
+
def __getstate__(self):
return (self.__days, self.__seconds, self.__microseconds)
***************
*** 827,830 ****
--- 832,841 ----
self.__second, 0, 0, -1))
+
+ def __nonzero__(self):
+ return (self.__hour != 0 or
+ self.__minute != 0 or
+ self.__second != 0 or
+ self.__microsecond != 0)
# Pickle support.
Index: doc.txt
===================================================================
RCS file: /cvsroot/python/python/nondist/sandbox/datetime/doc.txt,v
retrieving revision 1.25
retrieving revision 1.26
diff -C2 -d -r1.25 -r1.26
*** doc.txt 7 Dec 2002 18:58:25 -0000 1.25
--- doc.txt 7 Dec 2002 19:51:18 -0000 1.26
***************
*** 148,156 ****
t.days < 0. This is exact, and cannot overflow.
! - comparison of timedelta to timedelta
- hash, use as dict key
! - pickling
--- 148,160 ----
t.days < 0. This is exact, and cannot overflow.
! - comparison of timedelta to timedelta; the timedelta representing
! the smaller duration is considered to be the smaller timedelta
- hash, use as dict key
! - efficient pickling
!
! - in Boolean contexts, a timedelta object is consdired to be true
! if and only if it isn't equal to timedelta(0)
***************
*** 247,251 ****
- hash, use as dict key
! - pickling
Instance methods:
--- 251,257 ----
- hash, use as dict key
! - efficient pickling
!
! - in Boolean contexts, all date objects are considered to be true
Instance methods:
***************
*** 440,444 ****
- hash, use as dict key
! - pickling
Instance methods:
--- 446,452 ----
- hash, use as dict key
! - efficient pickling
!
! - in Boolean contexts, all datetime objects are considered to be true
Instance methods:
***************
*** 550,554 ****
- hash, use as dict key
! - pickling
Instance methods:
--- 558,565 ----
- hash, use as dict key
! - efficient pickling
!
! - in Boolean contexts, a time object is consdired to be true
! if and only if it isn't equal to time(0)
Instance methods:
Index: obj_date.c
===================================================================
RCS file: /cvsroot/python/python/nondist/sandbox/datetime/obj_date.c,v
retrieving revision 1.38
retrieving revision 1.39
diff -C2 -d -r1.38 -r1.39
*** obj_date.c 7 Dec 2002 19:03:14 -0000 1.38
--- obj_date.c 7 Dec 2002 19:51:18 -0000 1.39
***************
*** 400,410 ****
}
- static int
- date_nonzero(PyDateTime_Date *self)
- {
- assert(GET_YEAR(self) >= 1);
- return 1;
- }
-
static PyObject *
date_toordinal(PyDateTime_Date *self)
--- 400,403 ----
***************
*** 562,566 ****
0, /* nb_positive */
0, /* nb_absolute */
! (inquiry)date_nonzero, /* nb_nonzero */
};
--- 555,559 ----
0, /* nb_positive */
0, /* nb_absolute */
! 0, /* nb_nonzero */
};
Index: obj_datetime.c
===================================================================
RCS file: /cvsroot/python/python/nondist/sandbox/datetime/obj_datetime.c,v
retrieving revision 1.33
retrieving revision 1.34
diff -C2 -d -r1.33 -r1.34
*** obj_datetime.c 7 Dec 2002 19:03:15 -0000 1.33
--- obj_datetime.c 7 Dec 2002 19:51:18 -0000 1.34
***************
*** 628,632 ****
0, /* nb_positive */
0, /* nb_absolute */
! (inquiry)date_nonzero, /* nb_nonzero */
};
--- 628,632 ----
0, /* nb_positive */
0, /* nb_absolute */
! 0, /* nb_nonzero */
};
Index: test_both.py
===================================================================
RCS file: /cvsroot/python/python/nondist/sandbox/datetime/test_both.py,v
retrieving revision 1.50
retrieving revision 1.51
diff -C2 -d -r1.50 -r1.51
*** test_both.py 7 Dec 2002 19:17:34 -0000 1.50
--- test_both.py 7 Dec 2002 19:51:18 -0000 1.51
***************
*** 328,331 ****
--- 328,338 ----
(-1, 24*3600-1, 999999))
+ def test_bool(self):
+ self.failUnless(timedelta(1))
+ self.failUnless(timedelta(0, 1))
+ self.failUnless(timedelta(0, 0, 1))
+ self.failUnless(timedelta(microseconds=1))
+ self.failUnless(not timedelta(0))
+
#############################################################################
# date tests
***************
*** 778,781 ****
--- 785,793 ----
self.assertRaises(TypeError, lambda: badarg >= t1)
+ def test_bool(self):
+ # All dates are considered true.
+ self.failUnless(self.theclass.min)
+ self.failUnless(self.theclass.max)
+
#############################################################################
# datetime tests
***************
*** 1296,1299 ****
--- 1308,1320 ----
derived = pickler.loads(green)
self.assertEqual(orig, derived)
+
+ def test_bool(self):
+ cls = self.theclass
+ self.failUnless(cls(1))
+ self.failUnless(cls(0, 1))
+ self.failUnless(cls(0, 0, 1))
+ self.failUnless(cls(0, 0, 0, 1))
+ self.failUnless(not cls(0))
+ self.failUnless(not cls())
def test_suite():
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