A unicode string.
tf.experimental.numpy.unicode_(
*args, **kwargs
)
This type strips trailing null codepoints.
s = np.str_("abc\x00")s'abc'
Unlike the builtin :class:str, this supports the
:ref:python:bufferobjects, exposing its contents as UCS4:
m = memoryview(np.str_("abc"))m.format'3w'm.tobytes()b'a\x00\x00\x00b\x00\x00\x00c\x00\x00\x00'
:Character code: 'U'
Methods
all
all(
axis=None, out=None, keepdims=False, *, where=True
)
Scalar method identical to ndarray.all.
any
any(
axis=None, out=None, keepdims=False, *, where=True
)
Scalar method identical to ndarray.any.
argmax
argmax(
axis=None, out=None, *, keepdims=False
)
Scalar method identical to ndarray.argmax.
argmin
argmin(
axis=None, out=None, *, keepdims=False
)
Scalar method identical to ndarray.argmin.
argsort
argsort(
axis=-1, kind=None, order=None, *, stable=None
)
Scalar method identical to ndarray.argsort.
astype
astype(
dtype,
order='K',
casting='unsafe',
subok=True,
copy=True
)
Scalar method identical to ndarray.astype.
byteswap
byteswap(
inplace=False
)
Scalar method identical to ndarray.byteswap.
capitalize
capitalize()
Return a capitalized version of the string.
More specifically, make the first character have upper case and the rest lower case.
casefold
casefold()
Return a version of the string suitable for caseless comparisons.
center
center(
width, fillchar, /
)
Return a centered string of length width.
Padding is done using the specified fill character (default is a space).
choose
choose(
choices, out=None, mode='raise'
)
Scalar method identical to ndarray.choose.
clip
clip(
min=None, max=None, out=None, **kwargs
)
Scalar method identical to ndarray.clip.
compress
compress(
condition, axis=None, out=None
)
Scalar method identical to ndarray.compress.
conj
conj()
Scalar method identical to ndarray.conj.
conjugate
conjugate()
Scalar method identical to ndarray.conjugate.
copy
copy(
order='C'
)
Scalar method identical to ndarray.copy.
count
count()
S.count(sub[, start[, end]]) -> int
Return the number of non-overlapping occurrences of substring sub in string S[start:end]. Optional arguments start and end are interpreted as in slice notation.
cumprod
cumprod(
axis=None, dtype=None, out=None
)
Scalar method identical to ndarray.cumprod.
cumsum
cumsum(
axis=None, dtype=None, out=None
)
Scalar method identical to ndarray.cumsum.
diagonal
diagonal(
offset=0, axis1=0, axis2=1
)
Scalar method identical to ndarray.diagonal.
dump
dump(
file
)
Scalar method identical to ndarray.dump.
dumps
dumps()
Scalar method identical to ndarray.dumps.
encode
encode(
encoding='utf-8', errors='strict'
)
Encode the string using the codec registered for encoding.
encoding The encoding in which to encode the string. errors The error handling scheme to use for encoding errors. The default is 'strict' meaning that encoding errors raise a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and 'xmlcharrefreplace' as well as any other name registered with codecs.register_error that can handle UnicodeEncodeErrors.
endswith
endswith()
S.endswith(suffix[, start[, end]]) -> bool
Return True if S ends with the specified suffix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. suffix can also be a tuple of strings to try.
expandtabs
expandtabs(
tabsize=8
)
Return a copy where all tab characters are expanded using spaces.
If tabsize is not given, a tab size of 8 characters is assumed.
fill
fill(
value
)
Scalar method identical to ndarray.fill.
find
find()
S.find(sub[, start[, end]]) -> int
Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.
Return -1 on failure.
flatten
flatten(
order='C'
)
Scalar method identical to ndarray.flatten.
format
format()
S.format(*args, **kwargs) -> str
Return a formatted version of S, using substitutions from args and kwargs. The substitutions are identified by braces ('{' and '}').
format_map
format_map()
S.format_map(mapping) -> str
Return a formatted version of S, using substitutions from mapping. The substitutions are identified by braces ('{' and '}').
getfield
getfield(
dtype, offset=0
)
Scalar method identical to ndarray.getfield.
index
index()
S.index(sub[, start[, end]]) -> int
Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.
Raises ValueError when the substring is not found.
isalnum
isalnum()
Return True if the string is an alpha-numeric string, False otherwise.
A string is alpha-numeric if all characters in the string are alpha-numeric and there is at least one character in the string.
isalpha
isalpha()
Return True if the string is an alphabetic string, False otherwise.
A string is alphabetic if all characters in the string are alphabetic and there is at least one character in the string.
isascii
isascii()
Return True if all characters in the string are ASCII, False otherwise.
ASCII characters have code points in the range U+0000-U+007F. Empty string is ASCII too.
isdecimal
isdecimal()
Return True if the string is a decimal string, False otherwise.
A string is a decimal string if all characters in the string are decimal and there is at least one character in the string.
isdigit
isdigit()
Return True if the string is a digit string, False otherwise.
A string is a digit string if all characters in the string are digits and there is at least one character in the string.
isidentifier
isidentifier()
Return True if the string is a valid Python identifier, False otherwise.
Call keyword.iskeyword(s) to test whether string s is a reserved identifier, such as "def" or "class".
islower
islower()
Return True if the string is a lowercase string, False otherwise.
A string is lowercase if all cased characters in the string are lowercase and there is at least one cased character in the string.
isnumeric
isnumeric()
Return True if the string is a numeric string, False otherwise.
A string is numeric if all characters in the string are numeric and there is at least one character in the string.
isprintable
isprintable()
Return True if the string is printable, False otherwise.
A string is printable if all of its characters are considered printable in repr() or if it is empty.
isspace
isspace()
Return True if the string is a whitespace string, False otherwise.
A string is whitespace if all characters in the string are whitespace and there is at least one character in the string.
istitle
istitle()
Return True if the string is a title-cased string, False otherwise.
In a title-cased string, upper- and title-case characters may only follow uncased characters and lowercase characters only cased ones.
isupper
isupper()
Return True if the string is an uppercase string, False otherwise.
A string is uppercase if all cased characters in the string are uppercase and there is at least one cased character in the string.
item
item(
*args
)
Scalar method identical to ndarray.item.
join
join(
iterable, /
)
Concatenate any number of strings.
The string whose method is called is inserted in between each given string. The result is returned as a new string.
Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs'
ljust
ljust(
width, fillchar, /
)
Return a left-justified string of length width.
Padding is done using the specified fill character (default is a space).
lower
lower()
Return a copy of the string converted to lowercase.
lstrip
lstrip(
chars, /
)
Return a copy of the string with leading whitespace removed.
If chars is given and not None, remove characters in chars instead.
maketrans
maketrans()
Return a translation table usable for str.translate().
If there is only one argument, it must be a dictionary mapping Unicode ordinals (integers) or characters to Unicode ordinals, strings or None. Character keys will be then converted to ordinals. If there are two arguments, they must be strings of equal length, and in the resulting dictionary, each character in x will be mapped to the character at the same position in y. If there is a third argument, it must be a string, whose characters will be mapped to None in the result.
max
max(
axis=None, out=None, **kwargs
)
Scalar method identical to ndarray.max.
mean
mean(
axis=None, dtype=None, out=None, **kwargs
)
Scalar method identical to ndarray.mean.
min
min(
axis=None, out=None, **kwargs
)
Scalar method identical to ndarray.min.
nonzero
nonzero()
Scalar method identical to ndarray.nonzero.
partition
partition(
sep, /
)
Partition the string into three parts using the given separator.
This will search for the separator in the string. If the separator is found, returns a 3-tuple containing the part before the separator, the separator itself, and the part after it.
If the separator is not found, returns a 3-tuple containing the original string and two empty strings.
prod
prod(
axis=None, dtype=None, out=None, **kwargs
)
Scalar method identical to ndarray.prod.
put
put(
indices, values, /, mode='raise'
)
Scalar method identical to ndarray.put.
ravel
ravel(
order='C'
)
Scalar method identical to ndarray.ravel.
removeprefix
removeprefix(
prefix, /
)
Return a str with the given prefix string removed if present.
If the string starts with the prefix string, return string[len(prefix):]. Otherwise, return a copy of the original string.
removesuffix
removesuffix(
suffix, /
)
Return a str with the given suffix string removed if present.
If the string ends with the suffix string and that suffix is not empty, return string[:-len(suffix)]. Otherwise, return a copy of the original string.
repeat
repeat(
repeats, /, axis=None
)
Scalar method identical to ndarray.repeat.
replace
replace(
old, new, count, /
)
Return a copy with all occurrences of substring old replaced by new.
count Maximum number of occurrences to replace. -1 (the default value) means replace all occurrences.
If the optional argument count is given, only the first count occurrences are replaced.
reshape
reshape(
*shape, order='C', copy=None
)
Scalar method identical to ndarray.reshape.
resize
resize(
*new_shape, refcheck=True
)
Scalar method identical to ndarray.resize.
rfind
rfind()
S.rfind(sub[, start[, end]]) -> int
Return the highest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.
Return -1 on failure.
rindex
rindex()
S.rindex(sub[, start[, end]]) -> int
Return the highest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.
Raises ValueError when the substring is not found.
rjust
rjust(
width, fillchar, /
)
Return a right-justified string of length width.
Padding is done using the specified fill character (default is a space).
round
round(
decimals=0, out=None
)
Scalar method identical to ndarray.round.
rpartition
rpartition(
sep, /
)
Partition the string into three parts using the given separator.
This will search for the separator in the string, starting at the end. If the separator is found, returns a 3-tuple containing the part before the separator, the separator itself, and the part after it.
If the separator is not found, returns a 3-tuple containing two empty strings and the original string.
rsplit
rsplit(
sep=None, maxsplit=-1
)
Return a list of the substrings in the string, using sep as the separator string.
sep The separator used to split the string.
When set to None (the default value), will split on any whitespace
character (including \n \r \t \f and spaces) and will discard
empty strings from the result.
maxsplit Maximum number of splits. -1 (the default value) means no limit.
Splitting starts at the end of the string and works to the front.
rstrip
rstrip(
chars, /
)
Return a copy of the string with trailing whitespace removed.
If chars is given and not None, remove characters in chars instead.
searchsorted
searchsorted(
v, /, side='left', sorter=None
)
Scalar method identical to ndarray.searchsorted.
setfield
setfield(
val, /, dtype, offset=0
)
Scalar method identical to ndarray.setfield.
setflags
setflags(
*, write=None, align=None, uic=None
)
Scalar method identical to ndarray.setflags.
sort
sort(
axis=-1, kind=None, order=None, *, stable=None
)
Scalar method identical to ndarray.sort.
split
split(
sep=None, maxsplit=-1
)
Return a list of the substrings in the string, using sep as the separator string.
sep The separator used to split the string.
When set to None (the default value), will split on any whitespace
character (including \n \r \t \f and spaces) and will discard
empty strings from the result.
maxsplit Maximum number of splits. -1 (the default value) means no limit.
Splitting starts at the front of the string and works to the end.
Note, str.split() is mainly useful for data that has been intentionally delimited. With natural text that includes punctuation, consider using the regular expression module.
splitlines
splitlines(
keepends=False
)
Return a list of the lines in the string, breaking at line boundaries.
Line breaks are not included in the resulting list unless keepends is given and true.
squeeze
squeeze(
axis=None
)
Scalar method identical to ndarray.squeeze.
startswith
startswith()
S.startswith(prefix[, start[, end]]) -> bool
Return True if S starts with the specified prefix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. prefix can also be a tuple of strings to try.
std
std(
axis=None, dtype=None, out=None, ddof=0, **kwargs
)
Scalar method identical to ndarray.std.
strip
strip(
chars, /
)
Return a copy of the string with leading and trailing whitespace removed.
If chars is given and not None, remove characters in chars instead.
sum
sum(
axis=None, dtype=None, out=None, **kwargs
)
Scalar method identical to ndarray.sum.
swapaxes
swapaxes(
axis1, axis2, /
)
Scalar method identical to ndarray.swapaxes.
swapcase
swapcase()
Convert uppercase characters to lowercase and lowercase characters to uppercase.
take
take(
indices, /, axis=None, out=None, mode='raise'
)
Scalar method identical to ndarray.take.
title
title()
Return a version of the string where each word is titlecased.
More specifically, words start with uppercased characters and all remaining cased characters have lower case.
to_device
to_device(
device, /, *, stream=None
)
Scalar method identical to ndarray.to_device.
tobytes
tobytes(
order='C'
)
Scalar method identical to ndarray.tobytes.
tofile
tofile(
fid, /, sep='', format='%s'
)
Scalar method identical to ndarray.tofile.
tolist
tolist()
Scalar method identical to ndarray.tolist.
trace
trace(
offset=0, axis1=0, axis2=1, dtype=None, out=None
)
Scalar method identical to ndarray.trace.
translate
translate(
table, /
)
Replace each character in the string using the given translation table.
table Translation table, which must be a mapping of Unicode ordinals to Unicode ordinals, strings, or None.
The table must implement lookup/indexing via getitem, for instance a dictionary or list. If this operation raises LookupError, the character is left untouched. Characters mapped to None are deleted.
transpose
transpose(
*axes
)
Scalar method identical to ndarray.transpose.
upper
upper()
Return a copy of the string converted to uppercase.
var
var(
axis=None, dtype=None, out=None, ddof=0, **kwargs
)
Scalar method identical to ndarray.var.
view
view(
*args, **kwargs
)
Scalar method identical to ndarray.view.
zfill
zfill(
width, /
)
Pad a numeric string with zeros on the left, to fill a field of the given width.
The string is never truncated.
__abs__
__abs__()
abs(self)
__add__
__add__(
value, /
)
Return self+value.
__and__
__and__(
value, /
)
Return self&value.
__array__
__array__()
sc.array(dtype) return 0-dim array from scalar with specified dtype
__bool__
__bool__()
True if self else False
__contains__
__contains__(
key, /
)
Return key in self.
__eq__
__eq__(
value, /
)
Return self==value.
__floordiv__
__floordiv__(
value, /
)
Return self//value.
__ge__
__ge__(
value, /
)
Return self>=value.
__getitem__
__getitem__(
key, /
)
Return self[key].
__gt__
__gt__(
value, /
)
Return self>value.
__invert__
__invert__()
~self
__iter__
__iter__()
Implement iter(self).
__le__
__le__(
value, /
)
Return self<=value.
__len__
__len__()
Return len(self).
__lshift__
__lshift__(
value, /
)
Return self<<value.
__lt__
__lt__(
value, /
)
Return self<value.
__mod__
__mod__(
value, /
)
Return self%value.
__mul__
__mul__(
value, /
)
Return self*value.
__ne__
__ne__(
value, /
)
Return self!=value.
__neg__
__neg__()
-self
__or__
__or__(
value, /
)
Return self|value.
__pos__
__pos__()
+self
__pow__
__pow__(
value, mod, /
)
Return pow(self, value, mod).
__radd__
__radd__(
value, /
)
Return value+self.
__rand__
__rand__(
value, /
)
Return value&self.
__rfloordiv__
__rfloordiv__(
value, /
)
Return value//self.
__rlshift__
__rlshift__(
value, /
)
Return value<<self.
__rmod__
__rmod__(
value, /
)
Return value%self.
__rmul__
__rmul__(
value, /
)
Return value*self.
__ror__
__ror__(
value, /
)
Return value|self.
__rpow__
__rpow__(
value, mod, /
)
Return pow(value, self, mod).
__rrshift__
__rrshift__(
value, /
)
Return value>>self.
__rshift__
__rshift__(
value, /
)
Return self>>value.
__rsub__
__rsub__(
value, /
)
Return value-self.
__rtruediv__
__rtruediv__(
value, /
)
Return value/self.
__rxor__
__rxor__(
value, /
)
Return value^self.
__sub__
__sub__(
value, /
)
Return self-value.
__truediv__
__truediv__(
value, /
)
Return self/value.
__xor__
__xor__(
value, /
)
Return self^value.