In a previous article, we discussed how to use the strategy pattern to dynamically change an object’s behavior at runtime. Classically, polymorphism in object-oriented design is static and achieved through inheritance; however, with the strategy pattern you can accomplish the same goal dynamically. Indeed, this is an excellent way to handle situations when you need an object to exhibit different behavior at different times. However, it’s worth noting that the strategy pattern requires mutation of the object you’re working with. By using the strategy pattern, you are necessarily changing the algorithm that an object uses for a given behavior. In some situations, it may be preferable not to mutate a given object. Or more likely, you won’t even have the option of mutating an object because it may come from a codebase over which you have no control (such as an external library). Such cases are relatively common; however, it’s still possible to enhance an immutable object’s behavior. One effective means to do so is with the decorator pattern.
You saw that, to define a decorator, you typically define a function returning a wrapper function. The wrapper function uses *args and **kwargs to pass on arguments to the decorated function. If you want your decorator to also take arguments, you need to nest the wrapper function inside another function. In this case, you usually end up with three return statements.
Modern artists have extended the practice of painting considerably to include, as one example, collage, which began with Cubism and is not painting in the strict sense. Some modern painters incorporate different materials such as sand, cement, straw or wood for their texture. Examples of this are the works of Jean Dubuffet and Anselm Kiefer. There is a growing community of artists who use computers to "paint" color onto a digital "canvas" using programs such as Adobe Photoshop, Corel Painter, and many others. These images can be printed onto traditional canvas if required.
Landscape painting is a term that covers the depiction of natural scenery such as mountains, valleys, trees, rivers, and forests, and especially art where the main subject is a wide view, with its elements arranged into a coherent composition. In other works landscape backgrounds for figures can still form an important part of the work. Sky is almost always included in the view, and weather is often an element of the composition. Detailed landscapes as a distinct subject are not found in all artistic traditions, and develop when there is already a sophisticated tradition of representing other subjects. The two main traditions spring from Western painting and Chinese art, going back well over a thousand years in both cases.
Maintenance Assistant We are a serviced apartments operator with apartments dotted around primarily around the EC postcode in London. The team is vibrant, multicultural and friendly. Due to continued success and ambitious growth we are actively seeking to appoint a Maintenance Assistant to join the maintenance team who are responsible for ensuring that the apartments and the appliances are in immaculate condition. Key Responsibilities our Maintenance Assistant: Preventive and reactive maintenance Maintain the appearance of apartments; replacing broken lamps, bedroom fixtures, fittings, carrying out general repairs, moving furniture, maintaining high standards of decor Carry out short term maintenance work e.g. decorating, painting and quick repairs Work closely with all departments and be able to communicate with guests when asked To work continually with guest relations, ensuring apartments are ready for guests’ arrival Travel in and around central London either on your own or with the maintenance team Report directly to the maintenance manager Use, operate and store all tools, equipment and materials safely and securely to comply with statutory regulations e.g. COSHH Ensure that the Health and Safety regulations are always adhered to Ad hoc duties
Painter & Decorator - The Berkeley In fashionable Knightsbridge, The Berkeley is one of the leading 5-star hotels in London; breath-taking luxury hotel suites fuse comfort, stylish design and the latest innovations; a heavenly swimming pool and luxury spa provide a seventh-floor retreat overlooking Hyde Park. The stars come out for award-winning cocktails at the Blue Bar, and fashionistas join us for Prêt-à-Portea, our catwalk-inspired London afternoon tea in our Collins Room. The Berkeley forms part of the Maybourne Hotel Group, London's ultra-luxury hotel company. A career with Maybourne Hotel Group will put you side by side with people who amaze our guests with individual experiences and aim for perfection in everything they do. Role Description: As Painter and Decorator in our hotel you will be responsible for upholding our beautiful bedrooms to a pristine condition.Variety is the key to your work, as many rooms are individually designed and decorated to ensure you always have a challenge. You will ensure the paint work is neat throughout the building and you will also be required to carry out wallpapering work and tiling throughout the entire building.
There is general agreement that syntactic support is desirable to the current state of affairs. Guido mentioned syntactic support for decorators  in his DevDay keynote presentation at the 10th Python Conference , though he later said  it was only one of several extensions he proposed there "semi-jokingly". Michael Hudson raised the topic  on python-dev shortly after the conference, attributing the initial bracketed syntax to an earlier proposal on comp.lang.python by Gareth McCaughan .
As with many construction jobs, those who successfully complete apprenticeships best-position themselves for successful painting careers. For painters, apprenticeships can last up to four years. Apprentices must have a high school diploma or its equivalent before they are eligible to complete the requisite 144 hours of technical instruction and 2,000 hours of paid, on-the-job training. Common lessons include aesthetics, such as how to adequately match colors, as well as using and caring for painting tools and equipment, safety practices, application techniques and wood finishing. Prospective painters may also choose to attend two-year technical schools that offer courses linked to union and contractor organization apprenticeships. Credits gained from apprenticeships typically count toward an associate degree.
The decorator pattern is a design pattern that allows you to wrap an object such that it will appear to execute a given behavior in many different ways at different points in program execution. This is especially useful when you want an object to have different behaviors at but are unable to mutate the object. The decorator pattern is a useful way to implement dynamic behavior without needing an extended inheritance-based class hierarchy. To use the decorator pattern you need four elements: a component interface; a concrete component; a decorator abstraction; and, a concrete decorator. The interface sets the contract for both component and decorator behavior, the decorator abstraction contains a pointer to some concrete component, and the concrete decorators wrap a concrete component and override behavior if desired.
In object-oriented programming, the decorator pattern is a design pattern that allows behavior to be added to an individual object, dynamically, without affecting the behavior of other objects from the same class. The decorator pattern is often useful for adhering to the Single Responsibility Principle, as it allows functionality to be divided between classes with unique areas of concern. The decorator pattern is structurally nearly identical to the chain of responsibility pattern, the difference being that in a chain of responsibility, exactly one of the classes handles the request, while for the decorator, all classes handle the request.
Speed, portability and permanence also make aerosol paint a common graffiti medium. In the late 1970s, street graffiti writers' signatures and murals became more elaborate and a unique style developed as a factor of the aerosol medium and the speed required for illicit work. Many now recognize graffiti and street art as a unique art form and specifically manufactured aerosol paints are made for the graffiti artist. A stencil protects a surface, except the specific shape to be painted. Stencils can be purchased as movable letters, ordered as professionally cut logos or hand-cut by artists.
Cheval Residences are currently recruiting a Maintenance Engineer to join our Luxury serviced apartments based in Kensington. The successful applicant will be a qualified engineer and will ideally have some experience working in a similar role within a luxury hospitality environment. As a multi skilled engineer you will cover all aspects of maintenance including plumbing, mechanical, plant and building fabric etc. The maintenance department at Cheval Thorney Court and Cheval Hyde Park Gate provides both a proactive and reactive service to ensure that the property is maintained to a high standard. The department covers all aspects of maintenance including plumbing, air conditioning, electrics and building fabric. Some of the tasks will include: • To be the first line of response to all maintenance issues and resolve matters in an effective manner. · •To carry out engineering tasks ensuring high standards are consistently delivered. · •To ensure apartmen
In general, functions in Python may also have side effects rather than just turning an input into an output. The print() function is a basic example of this: it returns None while having the side effect of outputting something to the console. However, to understand decorators, it is enough to think about functions as something that turns given arguments into a value.
The Thistle Trafalgar Square Hotel is located on a quiet side street right in the heart of London's West End. All 108 bedrooms at this four-star hotel have been recently refurbished and offer a great standard of comfort and style. In addition, the Royal Trafalgar has a ground floor restaurant which also benefits from a terrace so you can experience al fresco dining in the center of London. The Role: Our guests deserve the best and that means operating hotels with the highest standards of maintenance and upkeep. As Maintenance Operative you will have the opportunity to contribute towards a fabulous guest experience by working hard to maintain the fixtures and fittings of the building. • Ensuring all defective fittings, breakdowns and malfunctions of equipment are fixed without delay • Communicating effectively and working closely with other departments such as Housekeeping • Ensuring that any emergencies are dealt with immediately and effectively minimizing any serious occurrences, hazards or inconvenience to guests and colleagues alike What we look for: • Positive, friendly individuals to join a like-minded team • NVQ electrician's qualification, experience in basic plumbing, basic carpentry, tiling and grouting skills and general handyperson skills with painting and decorating experience • Excellent communication skills • Total commitment to customer ser
HIX Restaurants are looking for bright and passionate individuals to work in a fast paced, vibrant and dynamic environment. We are currently seeking an experienced individual to work at HIX Soho in London’s West End.This is a great opportunity to work with chef, restaurateur and food writer Mark Hix, who has restaurants in London and Dorset, all serving the best of British seasonal produce. Bartending experience will be considered a bonus for the role. Experience in a similar role and a basic command of English is essential. You will be motivated, hardworking and able to cope with a demanding role. Duties will include: Cleaning Helping set up the restaurant/bar areas. Polishing glassware, cutlery and plates. Running food We strive for casual excellence throughout the group – have you got it? In return for your hard work, we are offering a competitive London wage and staff benefits to include: • up to 50% staff discount across all HIX restaurants • 28 days holiday rising by 1 day per year to 33 days • Staff food (AM & PM) • £500 recruitment initiative All applicants must either be eligible to live and work in the UK or must obtain permits to work in the UK prior to application. Documented evidence of eligibility will be required from candidates as part of the recruitment process. Because we receive a lot of applications we’re simply not able to reply to all of them direc
Acrylic paint is fast drying paint containing pigment suspension in acrylic polymer emulsion. Acrylic paints can be diluted with water, but become water-resistant when dry. Depending on how much the paint is diluted (with water) or modified with acrylic gels, media, or pastes, the finished acrylic painting can resemble a watercolor or an oil painting, or have its own unique characteristics not attainable with other media. The main practical difference between most acrylics and oil paints is the inherent drying time. Oils allow for more time to blend colors and apply even glazes over under-paintings. This slow drying aspect of oil can be seen as an advantage for certain techniques, but may also impede the artist's ability to work quickly.