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Python Tutorial for Beginners 9 Python Slicing (English) Anna University

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Python slice() Function Example Create a tuple and a slice object. Use the slice object to get only the two first items of the tuple: a = ( "a" , "b" , "c" , "d" , "e" , "f" , "g" , "h" ) x = slice ( 2 ) print (a[x]) Definition and Usage The slice() function returns a slice object. A slice object is used to specify how to slice a sequence. You can specify where to start the slicing, and where to end. You can also specify the step, which allows you to e.g. slice only every other item. Syntax slice( start , end, step ) Parameter Values Parameter Description start Optional. An integer number specifying at which position to start the slicing. Default is 0 end An integer number specifying at which position to end the slicing step Optional. An integer number specifying the step of the slicing...
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Python Tutorial for Beginners 10 Python IF ELSE Statements (English)

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Python If ... Else Python Conditions and If statements Python supports the usual logical conditions from mathematics: Equals: a == b Not Equals: a != b Less than: a < b Less than or equal to: a <= b Greater than: a > b Greater than or equal to: a >= b These conditions can be used in several ways, most commonly in "if statements" and loops. An "if statement" is written by using the if keyword. Example If statement: a = 33 b = 200 if b > a:   print ( "b is greater than a" ) In this example we use two variables, a and b , which are used as part of the if statement to test whether b is greater than a . As a is 33 , and b is 200 , we know that 200 is greater than 33, and so we print to screen that "b is greater than a". Indentation Python relies on indentation, using whitespace, to define scope in the code. Other programming languages often use curly-brackets for this purpose. E...
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