Remove Trailing Spaces from Each Element in a Numpy Array

To return a copy of an array with the trailing spaces removed, use the numpy.char.rstrip() method in Python Numpy.

The numpy.char module provides a set of vectorized string operations for arrays of type numpy.str_ or numpy.bytes_.

The chars parameter is a string specifying the set of characters to be removed. If omitted or None, the chars argument defaults to removing whitespace. The chars argument is not a suffix; rather, all combinations of its values are stripped.

Steps

At first, import the required library −

import numpy as np

Create a One-Dimensional array of string with some leading and trailing spaces −

arr = np.array([' Tom ', ' John ', ' Kate ', ' Amy ', 'Brad '])

Displaying our array −

print("Array...
",arr)

Get the datatype −

print("
Array datatype...
",arr.dtype)

Get the dimensions of the Array −

print("
Array Dimensions...
",arr.ndim)

Get the shape of the Array −

print("
Our Array Shape...
",arr.shape)

Get the number of elements of the Array −

print("
Elements in the Array...
",arr.size)

To return a copy of an array with the trailing spaces removed, use the numpy.char.rstrip() method −

print("
Result...
",np.char.rstrip(arr))

Example

import numpy as np

# Create a One-Dimensional array of string with some leading and trailing spaces
arr = np.array([' Tom ', ' John ', ' Kate ', ' Amy ', 'Brad '])

# Displaying our array
print("Array...
",arr)

# Get the datatype
print("
Array datatype...
",arr.dtype)

# Get the dimensions of the Array
print("
Array Dimensions...
",arr.ndim)

# Get the shape of the Array
print("
Our Array Shape...
",arr.shape)

# Get the number of elements of the Array
print("
Number of elements in the Array...
",arr.size)
# To return a copy of an array with the trailing spaces removed, use the numpy.char.rstrip() method in Python Numpy
print("
Result...
",np.char.rstrip(arr))

Output

Array...
[' Tom ' ' John ' ' Kate ' ' Amy ' 'Brad ']

Array datatype...
<U6

Array Dimensions...
1

Our Array Shape...
(5,)

Number of elements in the Array...
5

Result...
[' Tom' ' John' ' Kate' ' Amy' 'Brad']