default-value

I'd like to do something like this: class SillyWalk(object): @staticmethod def is_silly_enough(walk): return (False, "It's never silly enough") def walk(self, appraisal_method=is_silly_enough): self.do_stuff() (was_good_enough, reason) = appraisal_method(self) if not was_good_enough: self.execute_self_modifying_code(reason) return appraisal_method def do_stuff(self): pass def execute_self_modifying_code(self, problem): from __future__ import deepjuju deepjuju.kiss_booboo_better(self, problem) with the idea being that someone can do >>> silly_walk = SillyWalk() >>> appraise = walk() >>> is_good

I have a function with two parameter lists that I am trying to partially apply and use with currying. The second parameter list contains arguments that all have default values (but not implicit). Something like this: def test(a: Int)(b: Int = 2, c: Int = 3) { println(a + ", " + b + ", " + c); } Now, the following is all fine: test(1)(2, 3); test(1)(2); test(1)(c=3); test(1)(); Now if I define: def partial = test(1) _; Then the following can be done: partial(2, 3); Can someone explain why I can't omit some/all arguments in 'partial' as follows: partial(2); partial(c=3); partial(); Shouldn't

How to compute the value for default value in object fields in Odoo 8 models.py We can't use the _default attribute anymore in Odoo 8. field_name = fields.datatype( string=’value’, default=compute_default_value ) In the above field declaration, I want to call a method to assign default value for that field. For example: name = fields.Char( string='Name', default= _get_name() ) You can use a lambda function like this: name = fields.Char( string='Name', default=lambda self: self._get_default_name(), ) @api.model def _get_default_name(self): return "test" A simpler version for the @ChesuCR answer

I have table as shown below. In order to workaround one default now column restriction of MySQL I used the tip as shown here CREATE TABLE IF NOT EXISTS mytable ( id INT NOT NULL AUTO_INCREMENT , create_date TIMESTAMP NULL DEFAULT '0000-00-00 00:00:00' , update_date TIMESTAMP NULL DEFAULT NOW() ON UPDATE NOW() , PRIMARY KEY (`parti_id`) ) ENGINE = InnoDB; My sql_mode does not include NO_ZERO_DATE as pointed here my output : mysql> SELECT @@sql_mode; +------------+ | @@sql_mode | +------------+ | | +------------+ 1 row in set (0.00 sec) It is still giving the error as shown below: ERROR 1067

I'm trying to find a way to check and see if the value of a given object is equal to its default value. I've looked around and come up with this: public static bool IsNullOrDefault<T>(T argument) { if (argument is ValueType || argument != null) { return object.Equals(argument, default(T)); } return true; } The problem I'm having is that I want to call it like this: object o = 0; bool b = Utility.Utility.IsNullOrDefault(o); Yes o is an object, but I want to make it figure out the base type and check the default value of that. The base type, in this case, is an integer and I want to know in this

I have a Python function that takes a list as a parameter. If I set the parameter's default value to an empty list like this: def func(items=[]): print items Pylint would tell me "Dangerous default value [] as argument". So I was wondering what is the best practice here? Use None as a default value: def func(items=None): if items is None: items = [] print items The problem with a mutable default argument is that it will be shared between all invocations of the function -- see the "important warning" in the relevant section of the Python tutorial . I just encountered this for the first time,