Create datetime instance using a tuple.

[Negroup]

Hi, all.
I would like to know if it is possible to create a datetime instance
using a tuple instead of single values.

I mean:Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: function takes at least 3 arguments (1 given)

(class datetime(year, month, day[, hour[, minute[, second[,
microsecond[, tzinfo]]]]])

Thanks.

 

[Qiangning Hong]

Hi, all.
I would like to know if it is possible to create a datetime instance
using a tuple instead of single values.

I mean:Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: function takes at least 3 arguments (1 given)

(class datetime(year, month, day[, hour[, minute[, second[,
microsecond[, tzinfo]]]]])

Use:
dt = datetime(*t)

 

[Dan Bishop]

Hi, all.
I would like to know if it is possible to create a datetime instance
using a tuple instead of single values.

I mean:

from datetime import datetime
t = (1, 2, 3)
dt = datetime(t)

Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: function takes at least 3 arguments (1 given)

(class datetime(year, month, day[, hour[, minute[, second[,
microsecond[, tzinfo]]]]])

Use:
dt = datetime(*t)

It's better to write:

dt = datetime(*t[:6])

This gives you compatibility with the (year, month, day, hour, minute,
second, weekday, julian_day, dst) tuples returned by time.gmtime,
time.localtime, and time.strptime.

 

[Negroup]

Use:
dt =3D datetime(*t)

Thanks for the quick reply.
I can't find any doc about '*' used in this context. Have you some url
or suggestion for which terms search in Google?

 

[John Machin]

Thanks for the quick reply.
I can't find any doc about '*' used in this context. Have you some url
or suggestion for which terms search in Google?

http://www.python.org/doc/2.4.1/tut/tut.html

Then read this section

4.7.4 Unpacking Argument Lists

Then read all the other sections