Operators are the constructs which can manipulate the value of operands.
Consider the expression 4 + 5 = 9. Here, 4 and 5 are called operands and + is called operator.
Python language supports the following types of operators.
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12 STD || CH: 4 || TYPES OF OPERATORS - TOKENS
There are numerous operating systems such as Android, iOS and Windows which Python supports. In fact, you can use Python interpreters to use and run the code across platforms and tools.
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LEGB rule
Scope also defines the order in which variables have to be mapped to the object in order to obtain the value. Let us take a simple example as shown below:
1. x:= 'outer x variable'
2. display():
3. x:= 'inner x variable'
4. print x
5. display()
When the above statements are executed the
statement (4) and (5) display the result as Output outer x variable
inner x variable Above statements give different outputs because the same variable name x resides in different scopes, one inside the
function display() and the other in the upper level. The value ‘outer xvariable’ is printed when x is referenced outside the function
definition. Whereas when display() gets executed, ‘inner x variable’ is printed which is the x value inside the function definition. From the above example, we can guess that there is a rule followed, in order to decide from which scope a variable has to be picked.
The LEGB rule is used to decide the order in which the scopes are to be searched for scope resolution. The scopes are listed below in terms of hierarchy (highest to lowest).
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LEGB rule
Scope also defines the order in which variables have to be mapped to the object in order to obtain the value. Let us take a simple example as shown below:
1. x:= 'outer x variable'
2. display():
3. x:= 'inner x variable'
4. print x
5. display()
When the above statements are executed the
statement (4) and (5) display the result as Output outer x variable
inner x variable Above statements give different outputs because the same variable name x resides in different scopes, one inside the
function display() and the other in the upper level. The value ‘outer xvariable’ is printed when x is referenced outside the function
definition. Whereas when display() gets executed, ‘inner x variable’ is printed which is the x value inside the function definition. From the above example, we can guess that there is a rule followed, in order to decide from which scope a variable has to be picked.
The LEGB rule is used to decide the order in which the scopes are to be searched for scope resolution. The scopes are listed below in terms of hierarchy (highest to lowest).
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Introduction to Adobe PageMaker
Adobe PageMaker is a page layout software. It is used to design and produce documents that can be printed. You can create anything from a simple business card to a large book. Page layout software includes tools that allow you to easily position text and graphics on document pages. For example, using PageMaker, you can create a newsletter that includes articles and pictures on each page.
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