Python: slice() function

Last update on August 19 2022 21:50:45 (UTC/GMT +8 hours)

slice() function

The slice() function is used to get a slice object representing the set of indices specified by range(start, stop, step).

Version:

(Python 3.2.5)

Syntax:

slice(stop)
slice(start, stop[, step])

Parameter:

Name	Description	Required / Optional
start	An integer number specify where to start the slicing. Default is 0.	Optional.
stop	An integer number specify where the slice will end.	Required.
step	An integer number specify the step of the slicing. Default is .	Optional.

Return value:

A slice object.

Example: Python slice()

pyStr = 'Python'

# contains indices (0, 1, 2, 3)
# i.e. P, y , t and h
sliceObj = slice(4)

print(pyStr[sliceObj])

# contains indices (1, 5)
# i.e. y and h
sliceObj = slice(1,5, 2)

print(pyStr[sliceObj])

Output:

Pyth
yh

Pictorial Presentation:

Python: Built-in-function - slice() function

Example: Python slice() with negative index

pyStr = 'Python'

# contains indices (-2, -3, -4)
# i.e. o, h and t
sliceObj = slice(-1, -3, -1)

print(pyStr[sliceObj])

Output:

no

Python Code Editor:

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