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[Kc # @ s d Z d d d d d d d d d d
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+-> number (kind=i)
| integer
| signedinteger (intxx)
| byte
| short
| intc
| intp int0
| int_
| longlong
+-> unsignedinteger (uintxx) (kind=u)
| ubyte
| ushort
| uintc
| uintp uint0
| uint_
| ulonglong
+-> inexact
| +-> floating (floatxx) (kind=f)
| | single
| | float_ (double)
| | longfloat
| \-> complexfloating (complexxx) (kind=c)
| csingle (singlecomplex)
| complex_ (cfloat, cdouble)
| clongfloat (longcomplex)
+-> flexible
| character
| str_ (string_) (kind=S)
| unicode_ (kind=U)
| void (kind=V)
|
\-> object_ (not used much) (kind=O)
t
sctypeDictt sctypeNAt typeDictt typeNAt sctypest
ScalarTypet
obj2sctypet castt nbytest sctype2chart maximum_sctypet issctypet typecodest find_common_typet
issubdtypei( t typeinfot ndarrayt arrayt emptyt dtypeN( t boolt intt longt floatt complext objectt unicodet stri iA i ia t c C s | i t } | S( s Apply English case rules to convert ASCII strings to all lower case.
This is an internal utility function to replace calls to str.lower() such
that we can avoid changing behavior with changing locales. In particular,
Turkish has distinct dotted and dotless variants of the Latin letter "I" in
both lowercase and uppercase. Thus, "I".lower() != "i" in a "tr" locale.
Parameters
----------
s : str
Returns
-------
lowered : str
Examples
--------
>>> from numpy.core.numerictypes import english_lower
>>> english_lower('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_')
'abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789_'
>>> english_lower('')
''
( t translatet LOWER_TABLE( t st lowered( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt
english_lowerq s c C s | i t } | S( s Apply English case rules to convert ASCII strings to all upper case.
This is an internal utility function to replace calls to str.upper() such
that we can avoid changing behavior with changing locales. In particular,
Turkish has distinct dotted and dotless variants of the Latin letter "I" in
both lowercase and uppercase. Thus, "i".upper() != "I" in a "tr" locale.
Parameters
----------
s : str
Returns
-------
uppered : str
Examples
--------
>>> from numpy.core.numerictypes import english_upper
>>> english_upper('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_')
'ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'
>>> english_upper('')
''
( R t UPPER_TABLE( R t uppered( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt
english_upper s c C s& | o t | d | d S| Sd S( s, Apply English case rules to convert the first character of an ASCII
string to upper case.
This is an internal utility function to replace calls to str.capitalize()
such that we can avoid changing behavior with changing locales.
Parameters
----------
s : str
Returns
-------
capitalized : str
Examples
--------
>>> from numpy.core.numerictypes import english_capitalize
>>> english_capitalize('int8')
'Int8'
>>> english_capitalize('Int8')
'Int8'
>>> english_capitalize('')
''
i i N( R$ ( R ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt english_capitalize s c C sw d } x* | D]" } | d j o Pn | d 7} q
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} d } nA | d j o d } d } n$ | d j o d } d } d } n | d } | d j o! | d j o d | | f } n | | | f S( s/ Return a bit-width name for a given type objectR it _i i t bool_t bR t string_t St stringt unicode_t UR t voidt Vt object_t OR i s %s%d( t __name__R R$ t AssertionErrort KeyErrorR- ( t objR( R, t chart newnamet infoR+ t bytes( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt bitname sB
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| } d | } d | } t d
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R6 t genericc C s d% d& d' d( d) d* d+ d, d- d. d/ d0 d1 d2 d3 d4 d5 d6 d7 d8 g } x0 | D]( \ } } t | t | >> np.maximum_sctype(np.int)
>>> np.maximum_sctype(np.uint8)
>>> np.maximum_sctype(np.complex)
>>> np.maximum_sctype(str)
>>> np.maximum_sctype('i2')
>>> np.maximum_sctype('f4')
i iN( R t NoneR: R- R ( R{ t gR( R, R+ ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR
s &
Rr Rm Rc R/ R1 R4 c C s7 t | t i p t | } n t t i | d S( s7 returns the type corresponding to a certain Python typeR8 ( RD t _typest TypeTypeR RF t
_python_typest get( R{ ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt _python_type s c C sW t | t t f p t Sy- t | } | o | t j o t St SWn t SXd S( s$
Determines whether the given object represents a scalar data-type.
Parameters
----------
rep : any
If `rep` is an instance of a scalar dtype, True is returned. If not,
False is returned.
Returns
-------
out : bool
Boolean result of check whether `rep` is a scalar dtype.
See Also
--------
issubsctype, issubdtype, obj2sctype, sctype2char
Examples
--------
>>> np.issctype(np.int32)
True
>>> np.issctype(list)
False
>>> np.issctype(1.1)
False
N( RD R R t FalseR R8 t True( t rept res( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR s c C s y t | t o | SWn t j
o n Xt | t o | i St | t o t | St | t o | i i Sy t | } Wn | SX| i S( N( t
issubclassRb t TypeErrorRD R R R R ( R t defaultR ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR $ s c C s, y t | | SWn t j
o t SXd S( N( R R R ( t arg1t arg2( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt issubclass_7 s c C s t t | t | S( s
Determine if the first argument is a subclass of the second argument.
Parameters
----------
arg1, arg2 : dtype or dtype specifier
Data-types.
Returns
-------
out : bool
The result.
See Also
--------
issctype, issubdtype,obj2sctype
Examples
--------
>>> np.issubsctype('S8', str)
True
>>> np.issubsctype(np.array([1]), np.int)
True
>>> np.issubsctype(np.array([1]), np.float)
False
( R R ( R R ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt issubsctype= s c C s} t | t o t t | i | St | i i } t | d j o | d } n | d } t t | i | S( s
Returns True if first argument is a typecode lower/equal in type hierarchy.
Parameters
----------
arg1, arg2 : dtype_like
dtype or string representing a typecode.
Returns
-------
out : bool
See Also
--------
issubsctype, issubclass_
numpy.core.numerictypes : Overview of numpy type hierarchy.
Examples
--------
>>> np.issubdtype('S1', str)
True
>>> np.issubdtype(np.float64, np.float32)
False
i i ( R Rb R R R t mroR ( R R R RX ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR [ s
t _typedictc B s e Z d Z d Z RS( s
Base object for a dictionary for look-up with any alias for an array dtype.
Instances of `_typedict` can not be used as dictionaries directly,
first they have to be populated.
c C s t i | t | S( N( t dictt __getitem__R ( t selfR= ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR s ( R: t
__module__t __doc__R ( ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR s c C s x t i D] \ } } t | t p q
n | d } | d d t | <| d t | >> for sctype in [np.int32, np.float, np.complex, np.string_, np.ndarray]:
... print np.sctype2char(sctype)
l
d
D
S
O
>>> x = np.array([1., 2-1.j])
>>> np.sctype2char(x)
'D'
>>> np.sctype2char(list)
'O'
s unrecognized typeN( R R R' R ( t sctype( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR s *
c C s t | d t i | S( t copy( R R t astype( t xR) ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt s t flexiblei R3 R R RG i s %s_t ct Charactert bhilqpt Integert BHILQPt UnsignedIntegert fdgt Floatt FDGt Complext bBhHiIlLqQpPt
AllIntegert fdgFDGt AllFloatt Mmt Datetimes ?bhilqpBHILQPfdgFDGSUVOMmt AllR0 t ut it fR2 R5 R7 R9 t Mt mic C sU | | j o | Sy t i | i } Wn t j
o d SXt | | g d | S( Nt start( t __test_typest indexR> R' R t _can_coerce_all( RG R0 t thisind( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt _find_common_coerce s
c C s t | } | d j o d S| d j o | d S| } xv | t j oh t t | } t g } | D] } | | j o | | qh qh ~ } | | j o | S| d 7} q= Wd S( Ni i ( R R t __len_test_typesR R ( t dtypelistR t NR t newdtypet _[1]R t numcoerce( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR & s
8
c
C s g } | D] } | t | q ~ } g } | D] } | t | q2 ~ } t | } t | } | d j o | S| d j o | Sy( t i | i } t i | i } Wn t j
o d SX| | j o t | | S| Sd S( s
Determine common type following standard coercion rules.
Parameters
----------
array_types : sequence
A list of dtypes or dtype convertible objects representing arrays.
scalar_types : sequence
A list of dtypes or dtype convertible objects representing scalars.
Returns
-------
datatype : dtype
The common data type, which is the maximum of `array_types` ignoring
`scalar_types`, unless the maximum of `scalar_types` is of a
different kind (`dtype.kind`). If the kind is not understood, then
None is returned.
See Also
--------
dtype, common_type, can_cast, mintypecode
Examples
--------
>>> np.find_common_type([], [np.int64, np.float32, np.complex])
dtype('complex128')
>>> np.find_common_type([np.int64, np.float32], [])
dtype('float64')
The standard casting rules ensure that a scalar cannot up-cast an
array unless the scalar is of a fundamentally different kind of data
(i.e. under a different hierarchy in the data type hierarchy) then
the array:
>>> np.find_common_type([np.float32], [np.int64, np.float64])
dtype('float32')
Complex is of a different type, so it up-casts the float in the
`array_types` argument:
>>> np.find_common_type([np.float32], [np.complex])
dtype('complex128')
Type specifier strings are convertible to dtypes and can therefore
be used instead of dtypes:
>>> np.find_common_type(['f4', 'f4', 'i4'], ['c8'])
dtype('complex128')
N( R R R t
_kind_listR t kindR' R ( t array_typest scalar_typesR R t _[2]t maxat maxsct index_at index_sc( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyR
5 s 3''
i[ i{ i[ i{ ( i (b R t __all__t numpy.core.multiarrayR R R R R t typesR t __builtin__R R R R R R R R t mapt chrt ranget
_all_charst _ascii_uppert _ascii_lowert joinR R" R! R$ R% R R RF R- RB RI RP Ra R6 Rb R| R R R R R t genericTypeRankR
t
BufferTypeR R R R R R R R R R R R R R R R R t IntTypet FloatTypet ComplexTypet LongTypet BooleanTypet
StringTypet UnicodeTypeR t extendRC RE t keyt _typestrR t itemsRX t _toaddR( RD t globalsR R R R R R R R R R R
( ( ( s= /usr/lib64/python2.6/site-packages/numpy/core/numerictypes.pyt O s ( :
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