Numpy string operations | rindex() function
Last Updated :
29 Aug, 2020
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numpy.core.defchararray.rindex() function, raises ValueError when the substring sub is not found. Calls str.rindex element-wise.
Syntax : numpy.core.defchararray.rindex(arr, sub, start = 0, end = None)
Parameters :
arr : [array-like of str or unicode] Array-like of str .
sub : [str or unicode] Input string or unicode.
start, end : [int, optional] Optional arguments start and end are interpreted as in slice notation.
Return : Return the output array of ints.
Code #1 :
# Python program explaining
# numpy.char.rindex() function
# importing numpy as geek
import numpy as geek
arr = "GeeksforGeeks - A computer science portal for geeks"
sub = 'science'
gfg = geek.char.rindex(arr, sub)
print (gfg)
# Python program explaining # numpy.char.rindex() function # importing numpy as geek import numpy as geek arr = "GeeksforGeeks - A computer science portal for geeks"sub = 'science'gfg = geek.char.rindex(arr, sub) print (gfg)Output :
27
Code #2 :
# Python program explaining
# numpy.char.rindex() function
# importing numpy as geek
import numpy as geek
arr = "GeeksforGeeks - A computer science portal for geeks"
sub = 'geeks'
gfg = geek.char.rindex(arr, sub, start = 0, end = None)
print (gfg)
# Python program explaining # numpy.char.rindex() function # importing numpy as geek import numpy as geek arr = "GeeksforGeeks - A computer science portal for geeks"sub = 'geeks'gfg = geek.char.rindex(arr, sub, start = 0, end = None) print (gfg)Output :
46
