Python slice()

Python slice() class

The slice() class return a slice object representing the set of indices specified by range(start, stop, step). 

Syntax

class slice(stop)

         or

class slice(start, stop[, step])

Parameter

Start: This parameter represents an integer number specifying at which position to start the slicing, and by default, its value is 0.

Stop: This parameter represents an integer number specifying at which position to end the slicing.

Step: It is an optional parameter that represents an integer number specifying the step of the slicing. 

Return

The slice() function returns a slice object.

Example 1

 # Python program explaining 
 # the slice() function
 #intializing the values  
 n = ("A", "B", "C", "D", "E", "F", "G", "H")
 print("Value before slice function: ", n)
 slice_val = slice(6)
 print("Value after slice function: ", n[slice_val]) 

Output

Value before slice function:  ('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H')
Value after slice function:  ('A', 'B', 'C', 'D', 'E', 'F', 'G')

Example 2

 # Python program explaining 
 # the slice() function
 # initializing the integer value
 valTup = (425,618,55,214,341,58,266)
 print("Initial values:",valTup)
 # the slice object
 slice1 = slice(0,10,3)
 # We can use this slice object to get elements  
 strVal = valTup[slice1]  
 # printing the siced value
 print("After the sliced value: ",strVal)   

Output

Initial values: (425, 618, 55, 214, 341, 58, 266)
After the sliced value:  (425, 214, 266)