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Note that
a
op1
b
op2
c
doesn’t imply any kind of comparison between
a
and
c
, so that, e.g.,
x
<
y
>
z
is perfectly legal (though perhaps not pretty).
The forms
<>
and
!=
are equivalent; for consistency with C,
!=
is preferred; where
!=
is mentioned below
<>
is also accepted. The
<>
spelling is considered obsolescent.
The operators
<
,
>
,
==
,
>=
,
<=
, and
!=
compare the values of two objects. The objects do not need to have the same type.
Chapter Objects, values and types states that objects have a value (in addition to type and identity). The value of an object is a rather abstract notion in Python: For example, there is no canonical access method for an object’s value. Also, there is no requirement that the value of an object should be constructed in a particular way, e.g. comprised of all its data attributes. Comparison operators implement a particular notion of what the value of an object is. One can think of them as defining the value of an object indirectly, by means of their comparison implementation.
Types can customize their comparison behavior by implementing a
__cmp__()
method or
rich comparison methods
like
__lt__()
, described in
Basic customization
.
The default behavior for equality comparison (
==
and
!=
) is based on the identity of the objects. Hence, equality comparison of instances with the same identity results in equality, and equality comparison of instances with different identities results in inequality. A motivation for this default behavior is the desire that all objects should be reflexive (i.e.
x
is
y
implies
x
==
y
).
The default order comparison (
<
,
>
,
<=
, and
>=
) gives a consistent but arbitrary order.
(This unusual definition of comparison was used to simplify the definition of operations like sorting and the
in
and
not
in
operators. In the future, the comparison rules for objects of different types are likely to change.)
Building peace in the minds of men and women
4 February -Irina Bokovameeting with President Park Geun-hye affirmed that the Republic of Korea would deepen its involvement with UNESCO in the areas of education and culture.
“Among UN agencies, UNESCO is one very dear to the Korean people, because you provided assistance as Korea was emerging from the devastation of war, through support to education and culture,” said President Park, who received the Director-General in Seoul’s presidential palace. “Now, we are very interested in sharing our development experience with other countries and repaying that which we have received.”
The Director-General commended President Park’s leadership and vision, referring to her speech last month at the World Economic Forum, where she called for a “Davos Consensus” to effect a paradigm shift putting creativity at the heart of development.
“This resonates deeply with what UNESCO is doing – to foster human ingenuity and creativity,” said Ms Bokova. “The Republic of Korea is a fascinating example of the importance of soft power for becoming the world leader that you are today. Education, science, culture, the ingenuity of the human mind -- this is what we need today for peace.”
The President highlighted the importance of the World Education Forum and the World Water Forum in 2015, both hosted by the Republic of Korea. “The World Education Forum is not just another education conference -- it will set the agenda on the future of education for the next generation, and with your country we are developing new thinking about education for global citizenship.”
Peace and soft power were also the main themes of Mrs Bokova’s meeting with the Minister of Foreign Affairs Mr Yun Byung-se. He indicated that “cultural enrichment” is one of the country’s four key goals, and expressed the Republic of Korea’s readiness to work with UNESCO on promoting culture for sustainable development. “Soft power is one of the important tools to change the world -- it is important for reconciliation and it is at the heart of UNESCO’s work.”
The Director-General commended the President and the Minister for Korea’s aim to increase official development assistance, with a special focus on gender equality. During a lunchtime meeting, the Chairman of the Foreign Affairs and Unification Committee, Mr Ahn Hong Joon, explained that he had requested the Minister of Foreign Affairs to assess official development assistance in terms of its impact on gender equality. The Speaker of the National Assembly, Mr Kang Chang Hee reiterated the role that education played in Korea’s rise to a global economy and pledged that the National Commission would continue working with UNESCO to play a proactive role in promoting peace. Addressing parliamentarians, including from the Education, Culture, Sports and Tourism Committee chaired by Mr Hak-yong Shin, Ms Bokova affirmed that “UNESCO and the Republic of Korea share the same values, we work towards the same agenda, and Korea knows the value of peace that is enshrined in our Constitution.”
The President of the Korea International Cooperation Agency (KOICA), Mr Kim Young-mok and the Director-General discussed several opportunities to expand cooperation in science, culture and education, in Asia and sub-Saharan Africa. During her visit, Ms Bokova explored opportunities for new or reinforced partnerships, including with top executives at Samsung (on education, skills, mobile learning and cultural heritage), the country’s largest internet portal company Naver (on cultural heritage) and CJ, where she was introduced to a glimpse of Korea’s youth culture and entertainment performances. She met with the President and CEO of the Korean Broadcasting Corporation, Mr Gil Hwo Young, also heading the Asian Broadcasting Union, who expressed particular interest in gender and media, as well and media development more broadly.
UNESCO applies a zero tolerance policy against all forms of harassment
Illustration by Dougal MacPherson
by
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Published in
Design
,
User Experience
It started off as an honest problem with a brilliant solution. As the ways we use the web continue to grow and evolve, we, as its well-intentioned makers and stewards, needed something better than making simple collections of pages over and over again.
Design patterns, component libraries, or even style guides have become the norm for organizations big and small. Having reusable chunks of UI aids consistency and usability for users, and it lends familiarity and efficiency to designers. This in turn frees up designers’ time to focus on bigger problems, like solving for their users’ needs. In theory.
The use of design patterns, regardless of their scope or complexity, should never stifle creativity or hold back design progress. In order to achieve what they promise, they should be adaptable, flexible, and scalable. A good design pattern is undeterred by context, and most importantly, is unobtrusive. Again, in theory.
Before getting further into the weeds, let’s define what is meant by the term pattern here. You’re probably wondering what the difference is between all the different combinations of the same handful of words being used in the web community.
Initially, design patterns were small pieces of a user interface, like buttons and error messages.
Design patterns go beyond the scope and function of a style guide, which deals more with documenting how something should look, feel, or work. Type scales, design principles, and writing style are usually found within the bounds of a style guide.
More recently, the scope of design patterns has expanded as businesses and organizations look to work more efficiently and consistently, especially if it involves a group or family of products and services. Collections of design patterns are then commonly used to create reusable components of a larger scope, such as account sign-up, purchase checkout, or search. This is most often known as the component library.
The final evolution of all these is known as a design system (or a design language ). This encompasses the comprehensive set of design standards, documentation, and principles. It includes the design patterns and components to achieve those standards and adhere to those principles. More often than not, a design system is still used day-to-day by designers for its design patterns or components.