numpy.strings.translate#

strings.translate(a, table, deletechars=None)[source]#

For each element in a, return a copy of the string where all characters occurring in the optional argument deletechars are removed, and the remaining characters have been mapped through the given translation table.

Calls str.translate element-wise.

Parameters:

aarray-like, with bytes_ or str_ dtype

tablestr of length 256

deletecharsstr

Returns:

outndarray

Output array of str or unicode, depending on input type

See also

str.translate

Examples

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>>> import numpy as np
>>> a = np.array(['a1b c', '1bca', 'bca1'])
>>> table = a[0].maketrans('abc', '123')
>>> deletechars = ' '
>>> np.char.translate(a, table, deletechars)
array(['112 3', '1231', '2311'], dtype='<U5')

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