numpy.strings.ljust#

strings.ljust(a,width,fillchar='')[source]#

Return an array with the elements ofa left-justified in astring of lengthwidth.

Parameters:

aarray-like, withStringDType,bytes_, orstr_ dtype

widtharray_like, with any integer dtype

The length of the resulting strings, unlesswidth<str_len(a).

fillchararray-like, withStringDType,bytes_, orstr_ dtype

Optional character to use for padding (default is space).

Returns:

outndarray

Output array ofStringDType,bytes_ orstr_ dtype,depending on input types

See also

str.ljust

Notes

While it is possible fora andfillchar to have different dtypes,passing a non-ASCII character infillchar whena is of dtype “S”is not allowed, and aValueError is raised.

Examples

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>>>importnumpyasnp>>>c=np.array(['aAaAaA','  aA  ','abBABba'])>>>np.strings.ljust(c,width=3)array(['aAaAaA', '  aA  ', 'abBABba'], dtype='<U7')>>>np.strings.ljust(c,width=9)array(['aAaAaA   ', '  aA     ', 'abBABba  '], dtype='<U9')

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