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builtins.jl
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### object interface
"""
pyis(x, y)
True if `x` and `y` are the same Python object. Equivalent to `x is y` in Python.
"""
pyis(x, y) = @autopy x y getptr(x_) == getptr(y_)
export pyis
pyisnot(x, y) = !pyis(x, y)
"""
pyrepr(x)
Equivalent to `repr(x)` in Python.
"""
pyrepr(x) = pynew(errcheck(@autopy x C.PyObject_Repr(getptr(x_))))
pyrepr(::Type{String}, x) = (s = pyrepr(x); ans = pystr_asstring(s); pydel!(s); ans)
export pyrepr
"""
pyascii(x)
Equivalent to `ascii(x)` in Python.
"""
pyascii(x) = pynew(errcheck(@autopy x C.PyObject_ASCII(getptr(x_))))
pyascii(::Type{String}, x) = (s = pyascii(x); ans = pystr_asstring(s); pydel!(s); ans)
export pyascii
"""
pyhasattr(x, k)
Equivalent to `hasattr(x, k)` in Python.
Tests if `getattr(x, k)` raises an `AttributeError`.
"""
function pyhasattr(x, k)
ptr = @autopy x k C.PyObject_GetAttr(getptr(x_), getptr(k_))
if iserrset(ptr)
if errmatches(pybuiltins.AttributeError)
errclear()
return false
else
pythrow()
end
else
decref(ptr)
return true
end
end
# pyhasattr(x, k) = errcheck(@autopy x k C.PyObject_HasAttr(getptr(x_), getptr(k_))) == 1
export pyhasattr
"""
pygetattr(x, k, [d])
Equivalent to `getattr(x, k)` or `x.k` in Python.
If `d` is specified, it is returned if the attribute does not exist.
"""
pygetattr(x, k) = pynew(errcheck(@autopy x k C.PyObject_GetAttr(getptr(x_), getptr(k_))))
function pygetattr(x, k, d)
ptr = @autopy x k C.PyObject_GetAttr(getptr(x_), getptr(k_))
if iserrset(ptr)
if errmatches(pybuiltins.AttributeError)
errclear()
return d
else
pythrow()
end
else
return pynew(ptr)
end
end
export pygetattr
"""
pysetattr(x, k, v)
Equivalent to `setattr(x, k, v)` or `x.k = v` in Python.
"""
pysetattr(x, k, v) = (
errcheck(@autopy x k v C.PyObject_SetAttr(getptr(x_), getptr(k_), getptr(v_))); nothing
)
export pysetattr
"""
pydelattr(x, k)
Equivalent to `delattr(x, k)` or `del x.k` in Python.
"""
pydelattr(x, k) =
(errcheck(@autopy x k C.PyObject_SetAttr(getptr(x_), getptr(k_), C.PyNULL)); nothing)
export pydelattr
"""
pyissubclass(s, t)
Test if `s` is a subclass of `t`. Equivalent to `issubclass(s, t)` in Python.
"""
pyissubclass(s, t) =
errcheck(@autopy s t C.PyObject_IsSubclass(getptr(s_), getptr(t_))) == 1
export pyissubclass
"""
pyisinstance(x, t)
Test if `x` is of type `t`. Equivalent to `isinstance(x, t)` in Python.
"""
pyisinstance(x, t) =
errcheck(@autopy x t C.PyObject_IsInstance(getptr(x_), getptr(t_))) == 1
export pyisinstance
"""
pyhash(x)
Equivalent to `hash(x)` in Python, converted to an `Integer`.
"""
pyhash(x) = errcheck(@autopy x C.PyObject_Hash(getptr(x_)))
export pyhash
"""
pytruth(x)
The truthyness of `x`. Equivalent to `bool(x)` in Python, converted to a `Bool`.
"""
pytruth(x) = errcheck(@autopy x C.PyObject_IsTrue(getptr(x_))) == 1
export pytruth
"""
pynot(x)
The falsyness of `x`. Equivalent to `not x` in Python, converted to a `Bool`.
"""
pynot(x) = errcheck(@autopy x C.PyObject_Not(getptr(x_))) == 1
export pynot
"""
pylen(x)
The length of `x`. Equivalent to `len(x)` in Python, converted to an `Integer`.
"""
pylen(x) = errcheck(@autopy x C.PyObject_Length(getptr(x_)))
export pylen
"""
pyhasitem(x, k)
Test if `pygetitem(x, k)` raises a `KeyError` or `AttributeError`.
"""
function pyhasitem(x, k)
ptr = @autopy x k C.PyObject_GetItem(getptr(x_), getptr(k_))
if iserrset(ptr)
if errmatches(pybuiltins.KeyError) || errmatches(pybuiltins.IndexError)
errclear()
return false
else
pythrow()
end
else
decref(ptr)
return true
end
end
export pyhasitem
"""
pygetitem(x, k, [d])
Equivalent `x[k]` in Python.
If `d` is specified, it is returned if the item does not exist (i.e. if `x[k]` raises a
`KeyError` or `IndexError`).
"""
pygetitem(x, k) = pynew(errcheck(@autopy x k C.PyObject_GetItem(getptr(x_), getptr(k_))))
function pygetitem(x, k, d)
ptr = @autopy x k C.PyObject_GetItem(getptr(x_), getptr(k_))
if iserrset(ptr)
if errmatches(pybuiltins.KeyError) || errmatches(pybuiltins.IndexError)
errclear()
return d
else
pythrow()
end
else
return pynew(ptr)
end
end
export pygetitem
"""
pysetitem(x, k, v)
Equivalent to `setitem(x, k, v)` or `x[k] = v` in Python.
"""
pysetitem(x, k, v) = (
errcheck(@autopy x k v C.PyObject_SetItem(getptr(x_), getptr(k_), getptr(v_))); nothing
)
export pysetitem
"""
pydelitem(x, k)
Equivalent to `delitem(x, k)` or `del x[k]` in Python.
"""
pydelitem(x, k) =
(errcheck(@autopy x k C.PyObject_DelItem(getptr(x_), getptr(k_))); nothing)
export pydelitem
"""
pydir(x)
Equivalent to `dir(x)` in Python.
"""
pydir(x) = pynew(errcheck(@autopy x C.PyObject_Dir(getptr(x_))))
export pydir
pycallargs(f) = pynew(errcheck(@autopy f C.PyObject_CallObject(getptr(f_), C.PyNULL)))
pycallargs(f, args) =
pynew(errcheck(@autopy f args C.PyObject_CallObject(getptr(f_), getptr(args_))))
pycallargs(f, args, kwargs) = pynew(
errcheck(
@autopy f args kwargs C.PyObject_Call(getptr(f_), getptr(args_), getptr(kwargs_))
),
)
"""
pycall(f, args...; kwargs...)
Call the Python object `f` with the given arguments.
"""
pycall(f, args...; kwargs...) =
if !isempty(kwargs)
args_ = pytuple_fromiter(args)
kwargs_ = pystrdict_fromiter(kwargs)
ans = pycallargs(f, args_, kwargs_)
pydel!(args_)
pydel!(kwargs_)
ans
elseif !isempty(args)
args_ = pytuple_fromiter(args)
ans = pycallargs(f, args_)
pydel!(args_)
ans
else
pycallargs(f)
end
export pycall
"""
pyeq(x, y)
pyeq(Bool, x, y)
Equivalent to `x == y` in Python. The second form converts to `Bool`.
"""
pyeq(x, y) =
pynew(errcheck(@autopy x y C.PyObject_RichCompare(getptr(x_), getptr(y_), C.Py_EQ)))
"""
pyne(x, y)
pyne(Bool, x, y)
Equivalent to `x != y` in Python. The second form converts to `Bool`.
"""
pyne(x, y) =
pynew(errcheck(@autopy x y C.PyObject_RichCompare(getptr(x_), getptr(y_), C.Py_NE)))
"""
pyle(x, y)
pyle(Bool, x, y)
Equivalent to `x <= y` in Python. The second form converts to `Bool`.
"""
pyle(x, y) =
pynew(errcheck(@autopy x y C.PyObject_RichCompare(getptr(x_), getptr(y_), C.Py_LE)))
"""
pylt(x, y)
pylt(Bool, x, y)
Equivalent to `x < y` in Python. The second form converts to `Bool`.
"""
pylt(x, y) =
pynew(errcheck(@autopy x y C.PyObject_RichCompare(getptr(x_), getptr(y_), C.Py_LT)))
"""
pyge(x, y)
pyge(Bool, x, y)
Equivalent to `x >= y` in Python. The second form converts to `Bool`.
"""
pyge(x, y) =
pynew(errcheck(@autopy x y C.PyObject_RichCompare(getptr(x_), getptr(y_), C.Py_GE)))
"""
pygt(x, y)
pygt(Bool, x, y)
Equivalent to `x > y` in Python. The second form converts to `Bool`.
"""
pygt(x, y) =
pynew(errcheck(@autopy x y C.PyObject_RichCompare(getptr(x_), getptr(y_), C.Py_GT)))
pyeq(::Type{Bool}, x, y) =
errcheck(@autopy x y C.PyObject_RichCompareBool(getptr(x_), getptr(y_), C.Py_EQ)) == 1
pyne(::Type{Bool}, x, y) =
errcheck(@autopy x y C.PyObject_RichCompareBool(getptr(x_), getptr(y_), C.Py_NE)) == 1
pyle(::Type{Bool}, x, y) =
errcheck(@autopy x y C.PyObject_RichCompareBool(getptr(x_), getptr(y_), C.Py_LE)) == 1
pylt(::Type{Bool}, x, y) =
errcheck(@autopy x y C.PyObject_RichCompareBool(getptr(x_), getptr(y_), C.Py_LT)) == 1
pyge(::Type{Bool}, x, y) =
errcheck(@autopy x y C.PyObject_RichCompareBool(getptr(x_), getptr(y_), C.Py_GE)) == 1
pygt(::Type{Bool}, x, y) =
errcheck(@autopy x y C.PyObject_RichCompareBool(getptr(x_), getptr(y_), C.Py_GT)) == 1
export pyeq, pyne, pyle, pylt, pyge, pygt
"""
pycontains(x, v)
Equivalent to `v in x` in Python.
"""
pycontains(x, v) = errcheck(@autopy x v C.PySequence_Contains(getptr(x_), getptr(v_))) == 1
export pycontains
"""
pyin(v, x)
Equivalent to `v in x` in Python.
"""
pyin(v, x) = pycontains(x, v)
export pyin
pynotin(v, x) = !pyin(v, x)
### number interface
# unary
"""
pyneg(x)
Equivalent to `-x` in Python.
"""
pyneg(x) = pynew(errcheck(@autopy x C.PyNumber_Negative(getptr(x_))))
"""
pypos(x)
Equivalent to `+x` in Python.
"""
pypos(x) = pynew(errcheck(@autopy x C.PyNumber_Positive(getptr(x_))))
"""
pyabs(x)
Equivalent to `abs(x)` in Python.
"""
pyabs(x) = pynew(errcheck(@autopy x C.PyNumber_Absolute(getptr(x_))))
"""
pyinv(x)
Equivalent to `~x` in Python.
"""
pyinv(x) = pynew(errcheck(@autopy x C.PyNumber_Invert(getptr(x_))))
"""
pyindex(x)
Convert `x` losslessly to an `int`.
"""
pyindex(x) = pynew(errcheck(@autopy x C.PyNumber_Index(getptr(x_))))
export pyneg, pypos, pyabs, pyinv, pyindex
# binary
"""
pyadd(x, y)
Equivalent to `x + y` in Python.
"""
pyadd(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Add(getptr(x_), getptr(y_))))
"""
pysub(x, y)
Equivalent to `x - y` in Python.
"""
pysub(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Subtract(getptr(x_), getptr(y_))))
"""
pymul(x, y)
Equivalent to `x * y` in Python.
"""
pymul(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Multiply(getptr(x_), getptr(y_))))
"""
pymatmul(x, y)
Equivalent to `x @ y` in Python.
"""
pymatmul(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_MatrixMultiply(getptr(x_), getptr(y_))))
"""
pyfloordiv(x, y)
Equivalent to `x // y` in Python.
"""
pyfloordiv(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_FloorDivide(getptr(x_), getptr(y_))))
"""
pytruediv(x, y)
Equivalent to `x / y` in Python.
"""
pytruediv(x, y) = pynew(errcheck(@autopy x y C.PyNumber_TrueDivide(getptr(x_), getptr(y_))))
"""
pymod(x, y)
Equivalent to `x % y` in Python.
"""
pymod(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Remainder(getptr(x_), getptr(y_))))
"""
pydivmod(x, y)
Equivalent to `divmod(x, y)` in Python.
"""
pydivmod(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Divmod(getptr(x_), getptr(y_))))
"""
pylshift(x, y)
Equivalent to `x << y` in Python.
"""
pylshift(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Lshift(getptr(x_), getptr(y_))))
"""
pyrshift(x, y)
Equivalent to `x >> y` in Python.
"""
pyrshift(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Rshift(getptr(x_), getptr(y_))))
"""
pyand(x, y)
Equivalent to `x & y` in Python.
"""
pyand(x, y) = pynew(errcheck(@autopy x y C.PyNumber_And(getptr(x_), getptr(y_))))
"""
pyxor(x, y)
Equivalent to `x ^ y` in Python.
"""
pyxor(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Xor(getptr(x_), getptr(y_))))
"""
pyor(x, y)
Equivalent to `x | y` in Python.
"""
pyor(x, y) = pynew(errcheck(@autopy x y C.PyNumber_Or(getptr(x_), getptr(y_))))
export pyadd,
pysub,
pymul,
pymatmul,
pyfloordiv,
pytruediv,
pymod,
pydivmod,
pylshift,
pyrshift,
pyand,
pyxor,
pyor
# binary in-place
"""
pyiadd(x, y)
In-place add. `x = pyiadd(x, y)` is equivalent to `x += y` in Python.
"""
pyiadd(x, y) = pynew(errcheck(@autopy x y C.PyNumber_InPlaceAdd(getptr(x_), getptr(y_))))
"""
pyisub(x, y)
In-place subtract. `x = pyisub(x, y)` is equivalent to `x -= y` in Python.
"""
pyisub(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceSubtract(getptr(x_), getptr(y_))))
"""
pyimul(x, y)
In-place multiply. `x = pyimul(x, y)` is equivalent to `x *= y` in Python.
"""
pyimul(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceMultiply(getptr(x_), getptr(y_))))
"""
pyimatmul(x, y)
In-place matrix multiply. `x = pyimatmul(x, y)` is equivalent to `x @= y` in Python.
"""
pyimatmul(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceMatrixMultiply(getptr(x_), getptr(y_))))
"""
pyifloordiv(x, y)
In-place floor divide. `x = pyifloordiv(x, y)` is equivalent to `x //= y` in Python.
"""
pyifloordiv(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceFloorDivide(getptr(x_), getptr(y_))))
"""
pyitruediv(x, y)
In-place true division. `x = pyitruediv(x, y)` is equivalent to `x /= y` in Python.
"""
pyitruediv(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceTrueDivide(getptr(x_), getptr(y_))))
"""
pyimod(x, y)
In-place subtraction. `x = pyimod(x, y)` is equivalent to `x %= y` in Python.
"""
pyimod(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceRemainder(getptr(x_), getptr(y_))))
"""
pyilshift(x, y)
In-place left shift. `x = pyilshift(x, y)` is equivalent to `x <<= y` in Python.
"""
pyilshift(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceLshift(getptr(x_), getptr(y_))))
"""
pyirshift(x, y)
In-place right shift. `x = pyirshift(x, y)` is equivalent to `x >>= y` in Python.
"""
pyirshift(x, y) =
pynew(errcheck(@autopy x y C.PyNumber_InPlaceRshift(getptr(x_), getptr(y_))))
"""
pyiand(x, y)
In-place and. `x = pyiand(x, y)` is equivalent to `x &= y` in Python.
"""
pyiand(x, y) = pynew(errcheck(@autopy x y C.PyNumber_InPlaceAnd(getptr(x_), getptr(y_))))
"""
pyixor(x, y)
In-place xor. `x = pyixor(x, y)` is equivalent to `x ^= y` in Python.
"""
pyixor(x, y) = pynew(errcheck(@autopy x y C.PyNumber_InPlaceXor(getptr(x_), getptr(y_))))
"""
pyior(x, y)
In-place or. `x = pyior(x, y)` is equivalent to `x |= y` in Python.
"""
pyior(x, y) = pynew(errcheck(@autopy x y C.PyNumber_InPlaceOr(getptr(x_), getptr(y_))))
export pyiadd,
pyisub,
pyimul,
pyimatmul,
pyifloordiv,
pyitruediv,
pyimod,
pyilshift,
pyirshift,
pyiand,
pyixor,
pyior
# power
"""
pypow(x, y, z=None)
Equivalent to `x ** y` or `pow(x, y, z)` in Python.
"""
pypow(x, y, z = pybuiltins.None) =
pynew(errcheck(@autopy x y z C.PyNumber_Power(getptr(x_), getptr(y_), getptr(z_))))
"""
pyipow(x, y, z=None)
In-place power. `x = pyipow(x, y)` is equivalent to `x **= y` in Python.
"""
pyipow(x, y, z = pybuiltins.None) = pynew(
errcheck(@autopy x y z C.PyNumber_InPlacePower(getptr(x_), getptr(y_), getptr(z_))),
)
export pypow, pyipow
### iter
"""
pyiter(x)
Equivalent to `iter(x)` in Python.
"""
pyiter(x) = pynew(errcheck(@autopy x C.PyObject_GetIter(getptr(x_))))
export pyiter
"""
pynext(x)
Equivalent to `next(x)` in Python.
"""
pynext(x) = pybuiltins.next(x)
export pynext
"""
unsafe_pynext(x)
Return the next item in the iterator `x`. When there are no more items, return NULL.
"""
unsafe_pynext(x::Py) = Base.GC.@preserve x pynew(errcheck_ambig(C.PyIter_Next(getptr(x))))
### None
pyisnone(x) = pyis(x, pybuiltins.None)
### bool
"""
pybool(x)
Convert `x` to a Python `bool`.
"""
pybool(x::Bool = false) = pynew(x ? pybuiltins.True : pybuiltins.False)
pybool(x::Number) = pybool(!iszero(x))
pybool(x) = pybuiltins.bool(x)
export pybool
pyisTrue(x) = pyis(x, pybuiltins.True)
pyisFalse(x) = pyis(x, pybuiltins.False)
pyisbool(x) = pyisTrue(x) || pyisFalse(x)
function pybool_asbool(x)
@autopy x if pyisTrue(x_)
true
elseif pyisFalse(x_)
false
else
error("not a bool")
end
end
### str
pystr_fromUTF8(x::Ptr, n::Integer) = pynew(errcheck(C.PyUnicode_DecodeUTF8(x, n, C_NULL)))
pystr_fromUTF8(x) = pystr_fromUTF8(pointer(x), sizeof(x))
"""
pystr(x)
Convert `x` to a Python `str`.
"""
pystr(x) = pynew(errcheck(@autopy x C.PyObject_Str(getptr(x_))))
pystr(x::String) = pystr_fromUTF8(x)
pystr(x::SubString{String}) = pystr_fromUTF8(x)
pystr(x::Char) = pystr(string(x))
pystr(::Type{String}, x) = (s = pystr(x); ans = pystr_asstring(s); pydel!(s); ans)
export pystr
pystr_asUTF8bytes(x::Py) =
Base.GC.@preserve x pynew(errcheck(C.PyUnicode_AsUTF8String(getptr(x))))
pystr_asUTF8vector(x::Py) =
(b = pystr_asUTF8bytes(x); ans = pybytes_asvector(b); pydel!(b); ans)
pystr_asstring(x::Py) =
(b = pystr_asUTF8bytes(x); ans = pybytes_asUTF8string(b); pydel!(b); ans)
function pystr_intern!(x::Py)
ptr = Ref(getptr(x))
C.PyUnicode_InternInPlace(ptr)
setptr!(x, ptr[])
end
pyisstr(x) = pytypecheckfast(x, C.Py_TPFLAGS_UNICODE_SUBCLASS)
### bytes
pybytes_fromdata(x::Ptr, n::Integer) = pynew(errcheck(C.PyBytes_FromStringAndSize(x, n)))
pybytes_fromdata(x) = pybytes_fromdata(pointer(x), sizeof(x))
"""
pybytes(x)
Convert `x` to a Python `bytes`.
"""
pybytes(x) = pynew(errcheck(@autopy x C.PyObject_Bytes(getptr(x_))))
pybytes(x::Vector{UInt8}) = pybytes_fromdata(x)
pybytes(x::Base.CodeUnits{UInt8,String}) = pybytes_fromdata(x)
pybytes(x::Base.CodeUnits{UInt8,SubString{String}}) = pybytes_fromdata(x)
pybytes(::Type{T}, x) where {Vector{UInt8} <: T <: Vector} =
(b = pybytes(x); ans = pybytes_asvector(b); pydel!(b); ans)
pybytes(::Type{T}, x) where {Base.CodeUnits{UInt8,String} <: T <: Base.CodeUnits} =
(b = pybytes(x); ans = Base.CodeUnits(pybytes_asUTF8string(b)); pydel!(b); ans)
export pybytes
pyisbytes(x) = pytypecheckfast(x, C.Py_TPFLAGS_BYTES_SUBCLASS)
function pybytes_asdata(x::Py)
ptr = Ref(Ptr{Cchar}(0))
len = Ref(C.Py_ssize_t(0))
Base.GC.@preserve x errcheck(C.PyBytes_AsStringAndSize(getptr(x), ptr, len))
ptr[], len[]
end
function pybytes_asvector(x::Py)
ptr, len = pybytes_asdata(x)
unsafe_wrap(Array, Ptr{UInt8}(ptr), len)
end
function pybytes_asUTF8string(x::Py)
ptr, len = pybytes_asdata(x)
unsafe_string(Ptr{UInt8}(ptr), len)
end
### int
pyint_fallback(
x::Union{Int8,Int16,Int32,Int64,Int128,UInt8,UInt16,UInt32,UInt64,UInt128,BigInt},
) = pynew(errcheck(C.PyLong_FromString(string(x, base = 32), C_NULL, 32)))
pyint_fallback(x::Integer) = pyint_fallback(BigInt(x))
"""
pyint(x=0)
Convert `x` to a Python `int`.
"""
function pyint(x::Integer = 0)
y = mod(x, Clonglong)
if x == y
pynew(errcheck(C.PyLong_FromLongLong(y)))
else
pyint_fallback(x)
end
end
function pyint(x::Unsigned)
y = mod(x, Culonglong)
if x == y
pynew(errcheck(C.PyLong_FromUnsignedLongLong(y)))
else
pyint_fallback(x)
end
end
pyint(x) = @autopy x pynew(errcheck(C.PyNumber_Long(getptr(x_))))
export pyint
pyisint(x) = pytypecheckfast(x, C.Py_TPFLAGS_LONG_SUBCLASS)
### float
"""
pyfloat(x=0.0)
Convert `x` to a Python `float`.
"""
pyfloat(x::Real = 0.0) = pynew(errcheck(C.PyFloat_FromDouble(x)))
pyfloat(x) = @autopy x pynew(errcheck(C.PyNumber_Float(getptr(x_))))
export pyfloat
pyisfloat(x) = pytypecheck(x, pybuiltins.float)
pyfloat_asdouble(x) = errcheck_ambig(@autopy x C.PyFloat_AsDouble(getptr(x_)))
### complex
"""
pycomplex(x=0.0)
pycomplex(re, im)
Convert `x` to a Python `complex`, or create one from given real and imaginary parts.
"""
pycomplex(x::Real = 0.0, y::Real = 0.0) = pynew(errcheck(C.PyComplex_FromDoubles(x, y)))
pycomplex(x::Complex) = pycomplex(real(x), imag(x))
pycomplex(x) = pybuiltins.complex(x)
pycomplex(x, y) = pybuiltins.complex(x, y)
export pycomplex
pyiscomplex(x) = pytypecheck(x, pybuiltins.complex)
function pycomplex_ascomplex(x)
c = @autopy x C.PyComplex_AsCComplex(getptr(x_))
c.real == -1 && c.imag == 0 && errcheck()
return Complex(c.real, c.imag)
end
### type
"""
pytype(x)
The Python `type` of `x`.
"""
pytype(x) = pynew(errcheck(@autopy x C.PyObject_Type(getptr(x_))))
export pytype
"""
pytype(name, bases, dict)
Create a new type. Equivalent to `type(name, bases, dict)` in Python.
If `bases` is not a Python object, it is converted to one using `pytuple`.
The `dict` may either by a Python object or a Julia iterable. In the latter case, each item
may either be a `name => value` pair or a Python object with a `__name__` attribute.
In order to use a Julia `Function` as an instance method, it must be wrapped into a Python
function with [`pyfunc`](@ref PythonCall.pyfunc). Similarly, see also [`pyclassmethod`](@ref PythonCall.pyclassmethod),
[`pystaticmethod`](@ref PythonCall.pystaticmethod) or [`pyproperty`](@ref PythonCall.pyproperty). In all these cases, the arguments passed
to the function always have type `Py`. See the example below.
# Example
```julia
Foo = pytype("Foo", (), [
"__module__" => "__main__",
pyfunc(
name = "__init__",
doc = \"\"\"
Specify x and y to store in the Foo.
If omitted, y defaults to None.
\"\"\",
function (self, x, y = nothing)
self.x = x
self.y = y
return
end,
),
pyfunc(
name = "__repr__",
self -> "Foo(\$(self.x), \$(self.y))",
),
pyclassmethod(
name = "frompair",
doc = "Construct a Foo from a tuple of length two.",
(cls, xy) -> cls(xy...),
),
pystaticmethod(
name = "hello",
doc = "Prints a friendly greeting.",
(name) -> println("Hello, \$name"),
),
"xy" => pyproperty(
doc = "A tuple of x and y.",
get = (self) -> (self.x, self.y),
set = function (self, xy)
(x, y) = xy
self.x = x
self.y = y
nothing
end,
),
])
```
"""
function pytype(name, bases, dict)
bases2 = ispy(bases) ? bases : pytuple(bases)
dict2 =
ispy(dict) ? dict :
pydict(ispy(item) ? (pygetattr(item, "__name__") => item) : item for item in dict)
pybuiltins.type(name, bases2, dict2)
end
pyistype(x) = pytypecheckfast(x, C.Py_TPFLAGS_TYPE_SUBCLASS)
pytypecheck(x, t) = (@autopy x t C.Py_TypeCheck(getptr(x_), getptr(t_))) == 1
pytypecheckfast(x, f) = (@autopy x C.Py_TypeCheckFast(getptr(x_), f)) == 1
### slice
"""
pyslice([start], stop, [step])
Construct a Python `slice`. Unspecified arguments default to `None`.
"""
pyslice(x, y, z = pybuiltins.None) =
pynew(errcheck(@autopy x y z C.PySlice_New(getptr(x_), getptr(y_), getptr(z_))))
pyslice(y) = pyslice(pybuiltins.None, y, pybuiltins.None)
export pyslice
pyisslice(x) = pytypecheck(x, pybuiltins.slice)
### range
"""
pyrange([[start], [stop]], [step])
Construct a Python `range`. Unspecified arguments default to `None`.
"""
pyrange(x, y, z) = pybuiltins.range(x, y, z)
pyrange(x, y) = pybuiltins.range(x, y)
pyrange(y) = pybuiltins.range(y)
export pyrange
pyrange_fromrange(x::AbstractRange) = pyrange(first(x), last(x) + sign(step(x)), step(x))
pyisrange(x) = pytypecheck(x, pybuiltins.range)
### tuple
pynulltuple(len) = pynew(errcheck(C.PyTuple_New(len)))
function pytuple_setitem(xs::Py, i, x)
errcheck(C.PyTuple_SetItem(getptr(xs), i, incref(getptr(Py(x)))))
return xs
end
function pytuple_getitem(xs::Py, i)
Base.GC.@preserve xs pynew(incref(errcheck(C.PyTuple_GetItem(getptr(xs), i))))
end
function pytuple_fromiter(xs)
sz = Base.IteratorSize(typeof(xs))
if sz isa Base.HasLength || sz isa Base.HasShape
# length known, e.g. Tuple, Pair, Vector
ans = pynulltuple(length(xs))
for (i, x) in enumerate(xs)
pytuple_setitem(ans, i - 1, x)
end
return ans
else
# length unknown
xs_ = pylist_fromiter(xs)
ans = pylist_astuple(xs_)
pydel!(xs_)
return ans
end
end
@generated function pytuple_fromiter(xs::Tuple)
n = length(xs.parameters)
code = []
push!(code, :(ans = pynulltuple($n)))
for i = 1:n
push!(code, :(pytuple_setitem(ans, $(i - 1), xs[$i])))
end
push!(code, :(return ans))
return Expr(:block, code...)
end
"""
pytuple(x=())
Convert `x` to a Python `tuple`.
If `x` is a Python object, this is equivalent to `tuple(x)` in Python.
Otherwise `x` must be iterable.
"""
pytuple() = pynulltuple(0)
pytuple(x) = ispy(x) ? pybuiltins.tuple(x) : pytuple_fromiter(x)
export pytuple
pyistuple(x) = pytypecheckfast(x, C.Py_TPFLAGS_TUPLE_SUBCLASS)
### list
pynulllist(len) = pynew(errcheck(C.PyList_New(len)))
function pylist_setitem(xs::Py, i, x)
errcheck(C.PyList_SetItem(getptr(xs), i, incref(getptr(Py(x)))))
return xs
end
pylist_append(xs::Py, x) = errcheck(@autopy x C.PyList_Append(getptr(xs), getptr(x_)))
pylist_astuple(x) = pynew(errcheck(@autopy x C.PyList_AsTuple(getptr(x_))))
function pylist_fromiter(xs)
sz = Base.IteratorSize(typeof(xs))
if sz isa Base.HasLength || sz isa Base.HasShape
# length known
ans = pynulllist(length(xs))
for (i, x) in enumerate(xs)
pylist_setitem(ans, i - 1, x)
end
return ans
else
# length unknown
ans = pynulllist(0)
for x in xs
pylist_append(ans, x)
end
return ans
end
end
"""
pylist(x=())
Convert `x` to a Python `list`.
If `x` is a Python object, this is equivalent to `list(x)` in Python.
Otherwise `x` must be iterable.
"""
pylist() = pynulllist(0)
pylist(x) = ispy(x) ? pybuiltins.list(x) : pylist_fromiter(x)
export pylist
"""
pycollist(x::AbstractArray)
Create a nested Python `list`-of-`list`s from the elements of `x`. For matrices, this is a list of columns.
"""
function pycollist(x::AbstractArray{T,N}) where {T,N}
N == 0 && return pynew(Py(x[]))
d = N
ax = axes(x, d)