Merged revisions 59666-59679 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk ........ r59666 | christian.heimes | 2008-01-02 19:28:32 +0100 (Wed, 02 Jan 2008) | 1 line Made vs9to8 Unix compatible ........ r59669 | guido.van.rossum | 2008-01-02 20:00:46 +0100 (Wed, 02 Jan 2008) | 2 lines Patch #1696. Don't attempt to close None in dry-run mode. ........ r59671 | jeffrey.yasskin | 2008-01-03 03:21:52 +0100 (Thu, 03 Jan 2008) | 6 lines Backport PEP 3141 from the py3k branch to the trunk. This includes r50877 (just the complex_pow part), r56649, r56652, r56715, r57296, r57302, r57359, r57361, r57372, r57738, r57739, r58017, r58039, r58040, and r59390, and new documentation. The only significant difference is that round(x) returns a float to preserve backward-compatibility. See http://bugs.python.org/issue1689. ........ r59672 | christian.heimes | 2008-01-03 16:41:30 +0100 (Thu, 03 Jan 2008) | 1 line Issue #1726: Remove Python/atof.c from PCBuild/pythoncore.vcproj ........ r59675 | guido.van.rossum | 2008-01-03 20:12:44 +0100 (Thu, 03 Jan 2008) | 4 lines Issue #1700, reported by Nguyen Quan Son, fix by Fredruk Lundh: Regular Expression inline flags not handled correctly for some unicode characters. (Forward port from 2.5.2.) ........ r59676 | christian.heimes | 2008-01-03 21:23:15 +0100 (Thu, 03 Jan 2008) | 1 line Added math.isinf() and math.isnan() ........ r59677 | christian.heimes | 2008-01-03 22:14:48 +0100 (Thu, 03 Jan 2008) | 1 line Some build bots don't compile mathmodule. There is an issue with the long definition of pi and euler ........ r59678 | christian.heimes | 2008-01-03 23:16:32 +0100 (Thu, 03 Jan 2008) | 2 lines Modified PyImport_Import and PyImport_ImportModule to always use absolute imports by calling __import__ with an explicit level of 0 Added a new API function PyImport_ImportModuleNoBlock. It solves the problem with dead locks when mixing threads and imports ........ r59679 | christian.heimes | 2008-01-03 23:32:26 +0100 (Thu, 03 Jan 2008) | 1 line Added copysign(x, y) function to the math module ........
This commit is contained in:
Christian Heimes
parent
1c9f4373d2
commit
072c0f1b7e
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@ -184,7 +184,8 @@ Importing Modules
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single: modules (in module sys)
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This is a simplified interface to :cfunc:`PyImport_ImportModuleEx` below,
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leaving the *globals* and *locals* arguments set to *NULL*. When the *name*
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leaving the *globals* and *locals* arguments set to *NULL* and *level* set
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to 0. When the *name*
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argument contains a dot (when it specifies a submodule of a package), the
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*fromlist* argument is set to the list ``['*']`` so that the return value is the
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named module rather than the top-level package containing it as would otherwise
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@ -196,6 +197,27 @@ Importing Modules
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to find out. Starting with Python 2.4, a failing import of a module no longer
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leaves the module in ``sys.modules``.
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.. versionchanged:: 2.6
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always use absolute imports
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.. index:: single: modules (in module sys)
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.. cfunction:: PyObject* PyImport_ImportModuleNoBlock(const char *name)
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.. index::
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single: `cfunc:PyImport_ImportModule`
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This version of `cfunc:PyImport_ImportModule` does not block. It's intended
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to be used in C function which import other modules to execute a function.
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The import may block if another thread holds the import lock. The function
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`cfunc:PyImport_ImportModuleNoBlock` doesn't block. It first tries to fetch
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the module from sys.modules and falls back to `cfunc:PyImport_ImportModule`
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unless the the lock is hold. In the latter case the function raises an
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ImportError.
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.. versionadded:: 2.6
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.. cfunction:: PyObject* PyImport_ImportModuleEx(char *name, PyObject *globals, PyObject *locals, PyObject *fromlist)
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@ -214,6 +236,24 @@ Importing Modules
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Failing imports remove incomplete module objects, like with
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:cfunc:`PyImport_ImportModule`.
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.. versionchanged:: 2.6
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The function is an alias for `cfunc:PyImport_ImportModuleLevel` with
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-1 as level, meaning relative import.
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.. cfunction:: PyObject* PyImport_ImportModuleLevel(char *name, PyObject *globals, PyObject *locals, PyObject *fromlist, int level)
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Import a module. This is best described by referring to the built-in Python
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function :func:`__import__`, as the standard :func:`__import__` function calls
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this function directly.
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The return value is a new reference to the imported module or top-level package,
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or *NULL* with an exception set on failure. Like for :func:`__import__`,
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the return value when a submodule of a package was requested is normally the
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top-level package, unless a non-empty *fromlist* was given.
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..versionadded:: 2.5
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.. cfunction:: PyObject* PyImport_Import(PyObject *name)
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@ -222,6 +262,9 @@ Importing Modules
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current globals. This means that the import is done using whatever import hooks
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are installed in the current environment.
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.. versionchanged:: 2.6
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always use absolute imports
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.. cfunction:: PyObject* PyImport_ReloadModule(PyObject *m)
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@ -915,10 +915,13 @@ available. They are listed here in alphabetical order.
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.. function:: round(x[, n])
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Return the floating point value *x* rounded to *n* digits after the decimal
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point. If *n* is omitted, it defaults to zero. The result is a floating point
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number. Values are rounded to the closest multiple of 10 to the power minus
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*n*; if two multiples are equally close, rounding is done away from 0 (so. for
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example, ``round(0.5)`` is ``1.0`` and ``round(-0.5)`` is ``-1.0``).
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point. If *n* is omitted, it defaults to zero. Values are rounded to the
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closest multiple of 10 to the power minus *n*; if two multiples are equally
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close, rounding is done toward the even choice (so, for example, both
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``round(0.5)`` and ``round(-0.5)`` are ``0``, and ``round(1.5)`` is
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``2``). Delegates to ``x.__round__(n)``.
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.. versionchanged:: 2.6
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.. function:: set([iterable])
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@ -1064,6 +1067,14 @@ available. They are listed here in alphabetical order.
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operators such as ``super(C, self)[name]``.
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.. function:: trunc(x)
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Return the :class:`Real` value *x* truncated to an :class:`Integral` (usually
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a long integer). Delegates to ``x.__trunc__()``.
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.. versionadded:: 2.6
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.. function:: tuple([iterable])
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Return a tuple whose items are the same and in the same order as *iterable*'s
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@ -26,8 +26,17 @@ Number-theoretic and representation functions:
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.. function:: ceil(x)
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Return the ceiling of *x* as a float, the smallest integer value greater than or
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equal to *x*.
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Return the ceiling of *x* as a float, the smallest integer value greater than
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or equal to *x*. If *x* is not a float, delegates to ``x.__ceil__()``, which
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should return an :class:`Integral` value.
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.. function:: copysign(x, y)
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Return *x* with the sign of *y*. ``copysign`` copies the sign bit of an IEEE
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754 float, ``copysign(1, -0.0)`` returns *-1.0*.
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..versionadded:: 2.6
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.. function:: fabs(x)
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@ -37,8 +46,9 @@ Number-theoretic and representation functions:
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.. function:: floor(x)
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Return the floor of *x* as a float, the largest integer value less than or equal
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to *x*.
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Return the floor of *x* as a float, the largest integer value less than or
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equal to *x*. If *x* is not a float, delegates to ``x.__floor__()``, which
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should return an :class:`Integral` value.
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.. function:: fmod(x, y)
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@ -64,6 +74,23 @@ Number-theoretic and representation functions:
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apart" the internal representation of a float in a portable way.
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.. function:: isinf(x)
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Checks if the float *x* is positive or negative infinite.
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..versionadded:: 2.6
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.. function:: isnan(x)
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Checks if the float *x* is a NaN (not a number). NaNs are part of the
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IEEE 754 standards. Operation like but not limited to ``inf * 0``,
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``inf / inf`` or any operation involving a NaN, e.g. ``nan * 1``, return
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a NaN.
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..versionadded:: 2.6
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.. function:: ldexp(x, i)
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Return ``x * (2**i)``. This is essentially the inverse of function
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@ -0,0 +1,99 @@
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:mod:`numbers` --- Numeric abstract base classes
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================================================
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.. module:: numbers
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:synopsis: Numeric abstract base classes (Complex, Real, Integral, etc.).
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The :mod:`numbers` module (:pep:`3141`) defines a hierarchy of numeric abstract
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base classes which progressively define more operations. These concepts also
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provide a way to distinguish exact from inexact types. None of the types defined
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in this module can be instantiated.
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.. class:: Number
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The root of the numeric hierarchy. If you just want to check if an argument
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*x* is a number, without caring what kind, use ``isinstance(x, Number)``.
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Exact and inexact operations
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----------------------------
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.. class:: Exact
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Subclasses of this type have exact operations.
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As long as the result of a homogenous operation is of the same type, you can
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assume that it was computed exactly, and there are no round-off errors. Laws
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like commutativity and associativity hold.
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.. class:: Inexact
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Subclasses of this type have inexact operations.
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Given X, an instance of :class:`Inexact`, it is possible that ``(X + -X) + 3
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== 3``, but ``X + (-X + 3) == 0``. The exact form this error takes will vary
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by type, but it's generally unsafe to compare this type for equality.
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The numeric tower
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-----------------
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.. class:: Complex
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Subclasses of this type describe complex numbers and include the operations
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that work on the builtin :class:`complex` type. These are: conversions to
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:class:`complex` and :class:`bool`, :attr:`.real`, :attr:`.imag`, ``+``,
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``-``, ``*``, ``/``, :func:`abs`, :meth:`conjugate`, ``==``, and ``!=``. All
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except ``-`` and ``!=`` are abstract.
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.. attribute:: Complex.real
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Abstract. Retrieves the :class:`Real` component of this number.
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.. attribute:: Complex.imag
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Abstract. Retrieves the :class:`Real` component of this number.
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.. method:: Complex.conjugate()
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Abstract. Returns the complex conjugate. For example, ``(1+3j).conjugate() ==
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(1-3j)``.
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.. class:: Real
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To :class:`Complex`, :class:`Real` adds the operations that work on real
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numbers.
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In short, those are: a conversion to :class:`float`, :func:`trunc`,
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:func:`round`, :func:`math.floor`, :func:`math.ceil`, :func:`divmod`, ``//``,
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``%``, ``<``, ``<=``, ``>``, and ``>=``.
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Real also provides defaults for :func:`complex`, :attr:`Complex.real`,
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:attr:`Complex.imag`, and :meth:`Complex.conjugate`.
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.. class:: Rational
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Subtypes both :class:`Real` and :class:`Exact`, and adds
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:attr:`Rational.numerator` and :attr:`Rational.denominator` properties, which
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should be in lowest terms. With these, it provides a default for
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:func:`float`.
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.. attribute:: Rational.numerator
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Abstract.
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.. attribute:: Rational.denominator
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Abstract.
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.. class:: Integral
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Subtypes :class:`Rational` and adds a conversion to :class:`long`, the
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3-argument form of :func:`pow`, and the bit-string operations: ``<<``,
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``>>``, ``&``, ``^``, ``|``, ``~``. Provides defaults for :func:`float`,
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:attr:`Rational.numerator`, and :attr:`Rational.denominator`.
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@ -6,16 +6,18 @@ Numeric and Mathematical Modules
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********************************
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The modules described in this chapter provide numeric and math-related functions
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and data types. The :mod:`math` and :mod:`cmath` contain various mathematical
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functions for floating-point and complex numbers. For users more interested in
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decimal accuracy than in speed, the :mod:`decimal` module supports exact
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representations of decimal numbers.
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and data types. The :mod:`numbers` module defines an abstract hierarchy of
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numeric types. The :mod:`math` and :mod:`cmath` modules contain various
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mathematical functions for floating-point and complex numbers. For users more
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interested in decimal accuracy than in speed, the :mod:`decimal` module supports
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exact representations of decimal numbers.
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The following modules are documented in this chapter:
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.. toctree::
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numbers.rst
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math.rst
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cmath.rst
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decimal.rst
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@ -152,7 +152,7 @@ Ellipsis
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object is accessed through the literal ``...`` or the built-in name
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``Ellipsis``. Its truth value is true.
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Numbers
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:class:`numbers.Number`
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.. index:: object: numeric
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These are created by numeric literals and returned as results by arithmetic
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@ -164,7 +164,7 @@ Numbers
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Python distinguishes between integers, floating point numbers, and complex
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numbers:
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Integers
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:class:`numbers.Integral`
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.. index:: object: integer
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These represent elements from the mathematical set of integers (positive and
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@ -202,7 +202,7 @@ Numbers
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operation except left shift, if it yields a result in the plain integer domain
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without causing overflow, will yield the same result when using mixed operands.
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Floating point numbers
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:class:`numbers.Real` (:class:`float`)
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.. index::
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object: floating point
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pair: floating point; number
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@ -217,7 +217,7 @@ Numbers
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overhead of using objects in Python, so there is no reason to complicate the
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language with two kinds of floating point numbers.
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Complex numbers
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:class:`numbers.Complex`
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.. index::
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object: complex
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pair: complex; number
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|
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@ -768,7 +768,8 @@ float result is delivered. For example, ``10**2`` returns ``100``, but
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``10**-2`` returns ``0.01``.
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Raising ``0.0`` to a negative power results in a :exc:`ZeroDivisionError`.
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Raising a negative number to a fractional power results in a :exc:`ValueError`.
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Raising a negative number to a fractional power results in a :class:`complex`
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number. (Since Python 2.6. In earlier versions it raised a :exc:`ValueError`.)
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.. _unary:
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@ -14,13 +14,10 @@ PyAPI_FUNC(PyObject *) PyImport_ExecCodeModuleEx(
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PyAPI_FUNC(PyObject *) PyImport_GetModuleDict(void);
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PyAPI_FUNC(PyObject *) PyImport_AddModule(const char *name);
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PyAPI_FUNC(PyObject *) PyImport_ImportModule(const char *name);
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PyAPI_FUNC(PyObject *) PyImport_ImportModuleNoBlock(const char *);
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PyAPI_FUNC(PyObject *) PyImport_ImportModuleLevel(char *name,
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PyObject *globals, PyObject *locals, PyObject *fromlist, int level);
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/* For DLL compatibility */
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#undef PyImport_ImportModuleEx
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PyAPI_FUNC(PyObject *) PyImport_ImportModuleEx(
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char *name, PyObject *globals, PyObject *locals, PyObject *fromlist);
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#define PyImport_ImportModuleEx(n, g, l, f) \
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PyImport_ImportModuleLevel(n, g, l, f, -1)
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@ -90,7 +90,7 @@ static void **PyCurses_API;
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#define import_curses() \
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{ \
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PyObject *module = PyImport_ImportModule("_curses"); \
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PyObject *module = PyImport_ImportModuleNoBlock("_curses"); \
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if (module != NULL) { \
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PyObject *module_dict = PyModule_GetDict(module); \
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PyObject *c_api_object = PyDict_GetItemString(module_dict, "_C_API"); \
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|
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@ -335,12 +335,19 @@ extern "C" {
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/* High precision defintion of pi and e (Euler)
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* The values are taken from libc6's math.h.
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*/
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#ifndef Py_MATH_PIl
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#define Py_MATH_PIl 3.1415926535897932384626433832795029L
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#endif
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#ifndef Py_MATH_PI
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#define Py_MATH_PI 3.1415926535897932384626433832795029L
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#define Py_MATH_PI 3.14159265358979323846
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#endif
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#ifndef Py_MATH_El
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#define Py_MATH_El 2.7182818284590452353602874713526625L
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#endif
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||||
|
||||
#ifndef Py_MATH_E
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||||
#define Py_MATH_E 2.7182818284590452353602874713526625L
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#define Py_MATH_E 2.7182818284590452354
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#endif
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/* Py_IS_NAN(X)
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|
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@ -110,7 +110,8 @@ class build_scripts(Command):
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if f:
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f.close()
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else:
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f.close()
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if f:
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f.close()
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self.copy_file(script, outfile)
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||||
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||||
if os.name == 'posix':
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||||
|
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@ -516,7 +516,7 @@ def compile(p, flags=0):
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indexgroup[i] = k
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|
||||
return _sre.compile(
|
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pattern, flags, code,
|
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pattern, flags | p.pattern.flags, code,
|
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p.pattern.groups-1,
|
||||
groupindex, indexgroup
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)
|
||||
|
|
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@ -231,6 +231,29 @@ class MathTests(unittest.TestCase):
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self.ftest('tanh(0)', math.tanh(0), 0)
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||||
self.ftest('tanh(1)+tanh(-1)', math.tanh(1)+math.tanh(-1), 0)
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||||
|
||||
def testCopysign(self):
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self.assertEqual(math.copysign(1, 42), 1.0)
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||||
self.assertEqual(math.copysign(0., 42), 0.0)
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||||
self.assertEqual(math.copysign(1., -42), -1.0)
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self.assertEqual(math.copysign(3, 0.), 3.0)
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self.assertEqual(math.copysign(4., -0.), -4.0)
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|
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def testIsnan(self):
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self.assert_(math.isnan(float("nan")))
|
||||
self.assert_(math.isnan(float("inf")* 0.))
|
||||
self.failIf(math.isnan(float("inf")))
|
||||
self.failIf(math.isnan(0.))
|
||||
self.failIf(math.isnan(1.))
|
||||
|
||||
def testIsinf(self):
|
||||
self.assert_(math.isinf(float("inf")))
|
||||
self.assert_(math.isinf(float("-inf")))
|
||||
self.assert_(math.isinf(1E400))
|
||||
self.assert_(math.isinf(-1E400))
|
||||
self.failIf(math.isinf(float("nan")))
|
||||
self.failIf(math.isinf(0.))
|
||||
self.failIf(math.isinf(1.))
|
||||
|
||||
# RED_FLAG 16-Oct-2000 Tim
|
||||
# While 2.0 is more consistent about exceptions than previous releases, it
|
||||
# still fails this part of the test on some platforms. For now, we only
|
||||
|
|
|
|||
|
|
@ -632,6 +632,36 @@ class ReTests(unittest.TestCase):
|
|||
self.assertEqual(re.compile("bla").match(a), None)
|
||||
self.assertEqual(re.compile("").match(a).groups(), ())
|
||||
|
||||
def test_inline_flags(self):
|
||||
# Bug #1700
|
||||
upper_char = unichr(0x1ea0) # Latin Capital Letter A with Dot Bellow
|
||||
lower_char = unichr(0x1ea1) # Latin Small Letter A with Dot Bellow
|
||||
|
||||
p = re.compile(upper_char, re.I | re.U)
|
||||
q = p.match(lower_char)
|
||||
self.assertNotEqual(q, None)
|
||||
|
||||
p = re.compile(lower_char, re.I | re.U)
|
||||
q = p.match(upper_char)
|
||||
self.assertNotEqual(q, None)
|
||||
|
||||
p = re.compile('(?i)' + upper_char, re.U)
|
||||
q = p.match(lower_char)
|
||||
self.assertNotEqual(q, None)
|
||||
|
||||
p = re.compile('(?i)' + lower_char, re.U)
|
||||
q = p.match(upper_char)
|
||||
self.assertNotEqual(q, None)
|
||||
|
||||
p = re.compile('(?iu)' + upper_char)
|
||||
q = p.match(lower_char)
|
||||
self.assertNotEqual(q, None)
|
||||
|
||||
p = re.compile('(?iu)' + lower_char)
|
||||
q = p.match(upper_char)
|
||||
self.assertNotEqual(q, None)
|
||||
|
||||
|
||||
def run_re_tests():
|
||||
from test.re_tests import benchmarks, tests, SUCCEED, FAIL, SYNTAX_ERROR
|
||||
if verbose:
|
||||
|
|
|
|||
|
|
@ -356,7 +356,7 @@ MacOS_GetErrorString(PyObject *self, PyObject *args)
|
|||
PyObject *m, *rv;
|
||||
errors_loaded = 1;
|
||||
|
||||
m = PyImport_ImportModule("macresource");
|
||||
m = PyImport_ImportModuleNoBlock("macresource");
|
||||
if (!m) {
|
||||
if (Py_VerboseFlag)
|
||||
PyErr_Print();
|
||||
|
|
|
|||
|
|
@ -367,7 +367,7 @@ long Call_GetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
|
|||
if (context == NULL)
|
||||
context = PyUnicode_FromString("_ctypes.DllGetClassObject");
|
||||
|
||||
mod = PyImport_ImportModule("ctypes");
|
||||
mod = PyImport_ImportModuleNoBlock("ctypes");
|
||||
if (!mod) {
|
||||
PyErr_WriteUnraisable(context ? context : Py_None);
|
||||
/* There has been a warning before about this already */
|
||||
|
|
@ -446,7 +446,7 @@ long Call_CanUnloadNow(void)
|
|||
if (context == NULL)
|
||||
context = PyUnicode_FromString("_ctypes.DllCanUnloadNow");
|
||||
|
||||
mod = PyImport_ImportModule("ctypes");
|
||||
mod = PyImport_ImportModuleNoBlock("ctypes");
|
||||
if (!mod) {
|
||||
/* OutputDebugString("Could not import ctypes"); */
|
||||
/* We assume that this error can only occur when shutting
|
||||
|
|
|
|||
|
|
@ -2316,7 +2316,7 @@ static int
|
|||
update_lines_cols(void)
|
||||
{
|
||||
PyObject *o;
|
||||
PyObject *m = PyImport_ImportModule("curses");
|
||||
PyObject *m = PyImport_ImportModuleNoBlock("curses");
|
||||
|
||||
if (!m)
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -245,7 +245,7 @@ getmultibytecodec(void)
|
|||
static PyObject *cofunc = NULL;
|
||||
|
||||
if (cofunc == NULL) {
|
||||
PyObject *mod = PyImport_ImportModule("_multibytecodec");
|
||||
PyObject *mod = PyImport_ImportModuleNoBlock("_multibytecodec");
|
||||
if (mod == NULL)
|
||||
return NULL;
|
||||
cofunc = PyObject_GetAttrString(mod, "__create_codec");
|
||||
|
|
|
|||
|
|
@ -1329,7 +1329,7 @@ wrap_strftime(PyObject *object, PyObject *format, PyObject *timetuple,
|
|||
goto Done;
|
||||
{
|
||||
PyObject *format;
|
||||
PyObject *time = PyImport_ImportModule("time");
|
||||
PyObject *time = PyImport_ImportModuleNoBlock("time");
|
||||
if (time == NULL)
|
||||
goto Done;
|
||||
format = PyUnicode_FromString(PyString_AS_STRING(newfmt));
|
||||
|
|
@ -1357,7 +1357,7 @@ static PyObject *
|
|||
time_time(void)
|
||||
{
|
||||
PyObject *result = NULL;
|
||||
PyObject *time = PyImport_ImportModule("time");
|
||||
PyObject *time = PyImport_ImportModuleNoBlock("time");
|
||||
|
||||
if (time != NULL) {
|
||||
result = PyObject_CallMethod(time, "time", "()");
|
||||
|
|
@ -1375,7 +1375,7 @@ build_struct_time(int y, int m, int d, int hh, int mm, int ss, int dstflag)
|
|||
PyObject *time;
|
||||
PyObject *result = NULL;
|
||||
|
||||
time = PyImport_ImportModule("time");
|
||||
time = PyImport_ImportModuleNoBlock("time");
|
||||
if (time != NULL) {
|
||||
result = PyObject_CallMethod(time, "struct_time",
|
||||
"((iiiiiiiii))",
|
||||
|
|
@ -3821,7 +3821,7 @@ datetime_strptime(PyObject *cls, PyObject *args)
|
|||
if (!PyArg_ParseTuple(args, "uu:strptime", &string, &format))
|
||||
return NULL;
|
||||
|
||||
if ((module = PyImport_ImportModule("time")) == NULL)
|
||||
if ((module = PyImport_ImportModuleNoBlock("time")) == NULL)
|
||||
return NULL;
|
||||
obj = PyObject_CallMethod(module, "strptime", "uu", string, format);
|
||||
Py_DECREF(module);
|
||||
|
|
|
|||
|
|
@ -1199,7 +1199,7 @@ initgc(void)
|
|||
* the import and triggers an assertion.
|
||||
*/
|
||||
if (tmod == NULL) {
|
||||
tmod = PyImport_ImportModule("time");
|
||||
tmod = PyImport_ImportModuleNoBlock("time");
|
||||
if (tmod == NULL)
|
||||
PyErr_Clear();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -133,6 +133,14 @@ FUNC1(cos, cos,
|
|||
"cos(x)\n\nReturn the cosine of x (measured in radians).")
|
||||
FUNC1(cosh, cosh,
|
||||
"cosh(x)\n\nReturn the hyperbolic cosine of x.")
|
||||
#if defined(MS_WINDOWS) || defined(HAVE_COPYSIGN)
|
||||
#ifdef MS_WINDOWS
|
||||
FUNC2(copysign, _copysign,
|
||||
#else
|
||||
FUNC2(copysign, copysign,
|
||||
#endif
|
||||
"copysign(x,y)\n\nReturn x with the sign of y.");
|
||||
#endif
|
||||
FUNC1(exp, exp,
|
||||
"exp(x)\n\nReturn e raised to the power of x.")
|
||||
FUNC1(fabs, fabs,
|
||||
|
|
@ -315,9 +323,8 @@ math_log10(PyObject *self, PyObject *arg)
|
|||
PyDoc_STRVAR(math_log10_doc,
|
||||
"log10(x) -> the base 10 logarithm of x.");
|
||||
|
||||
/* XXX(nnorwitz): Should we use the platform M_PI or something more accurate
|
||||
like: 3.14159265358979323846264338327950288 */
|
||||
static const double degToRad = 3.141592653589793238462643383 / 180.0;
|
||||
static const double degToRad = Py_MATH_PI / 180.0;
|
||||
static const double radToDeg = 180.0 / Py_MATH_PI;
|
||||
|
||||
static PyObject *
|
||||
math_degrees(PyObject *self, PyObject *arg)
|
||||
|
|
@ -325,7 +332,7 @@ math_degrees(PyObject *self, PyObject *arg)
|
|||
double x = PyFloat_AsDouble(arg);
|
||||
if (x == -1.0 && PyErr_Occurred())
|
||||
return NULL;
|
||||
return PyFloat_FromDouble(x / degToRad);
|
||||
return PyFloat_FromDouble(x * radToDeg);
|
||||
}
|
||||
|
||||
PyDoc_STRVAR(math_degrees_doc,
|
||||
|
|
@ -343,12 +350,42 @@ math_radians(PyObject *self, PyObject *arg)
|
|||
PyDoc_STRVAR(math_radians_doc,
|
||||
"radians(x) -> converts angle x from degrees to radians");
|
||||
|
||||
static PyObject *
|
||||
math_isnan(PyObject *self, PyObject *arg)
|
||||
{
|
||||
double x = PyFloat_AsDouble(arg);
|
||||
if (x == -1.0 && PyErr_Occurred())
|
||||
return NULL;
|
||||
return PyBool_FromLong((long)Py_IS_NAN(x));
|
||||
}
|
||||
|
||||
PyDoc_STRVAR(math_isnan_doc,
|
||||
"isnan(x) -> bool\n\
|
||||
Checks if float x is not a number (NaN)");
|
||||
|
||||
static PyObject *
|
||||
math_isinf(PyObject *self, PyObject *arg)
|
||||
{
|
||||
double x = PyFloat_AsDouble(arg);
|
||||
if (x == -1.0 && PyErr_Occurred())
|
||||
return NULL;
|
||||
return PyBool_FromLong((long)Py_IS_INFINITY(x));
|
||||
}
|
||||
|
||||
PyDoc_STRVAR(math_isinf_doc,
|
||||
"isinf(x) -> bool\n\
|
||||
Checks if float x is infinite (positive or negative)");
|
||||
|
||||
|
||||
static PyMethodDef math_methods[] = {
|
||||
{"acos", math_acos, METH_O, math_acos_doc},
|
||||
{"asin", math_asin, METH_O, math_asin_doc},
|
||||
{"atan", math_atan, METH_O, math_atan_doc},
|
||||
{"atan2", math_atan2, METH_VARARGS, math_atan2_doc},
|
||||
{"ceil", math_ceil, METH_O, math_ceil_doc},
|
||||
#if defined(MS_WINDOWS) || defined(HAVE_COPYSIGN)
|
||||
{"copysign", math_copysign, METH_VARARGS, math_copysign_doc},
|
||||
#endif
|
||||
{"cos", math_cos, METH_O, math_cos_doc},
|
||||
{"cosh", math_cosh, METH_O, math_cosh_doc},
|
||||
{"degrees", math_degrees, METH_O, math_degrees_doc},
|
||||
|
|
@ -358,6 +395,8 @@ static PyMethodDef math_methods[] = {
|
|||
{"fmod", math_fmod, METH_VARARGS, math_fmod_doc},
|
||||
{"frexp", math_frexp, METH_O, math_frexp_doc},
|
||||
{"hypot", math_hypot, METH_VARARGS, math_hypot_doc},
|
||||
{"isinf", math_isinf, METH_O, math_isinf_doc},
|
||||
{"isnan", math_isnan, METH_O, math_isnan_doc},
|
||||
{"ldexp", math_ldexp, METH_VARARGS, math_ldexp_doc},
|
||||
{"log", math_log, METH_VARARGS, math_log_doc},
|
||||
{"log10", math_log10, METH_O, math_log10_doc},
|
||||
|
|
@ -389,13 +428,13 @@ initmath(void)
|
|||
if (d == NULL)
|
||||
goto finally;
|
||||
|
||||
if (!(v = PyFloat_FromDouble(atan(1.0) * 4.0)))
|
||||
if (!(v = PyFloat_FromDouble(Py_MATH_PI)))
|
||||
goto finally;
|
||||
if (PyDict_SetItemString(d, "pi", v) < 0)
|
||||
goto finally;
|
||||
Py_DECREF(v);
|
||||
|
||||
if (!(v = PyFloat_FromDouble(exp(1.0))))
|
||||
if (!(v = PyFloat_FromDouble(Py_MATH_E)))
|
||||
goto finally;
|
||||
if (PyDict_SetItemString(d, "e", v) < 0)
|
||||
goto finally;
|
||||
|
|
|
|||
|
|
@ -3093,7 +3093,7 @@ initparser(void)
|
|||
* If this fails, the import of this module will fail because an
|
||||
* exception will be raised here; should we clear the exception?
|
||||
*/
|
||||
copyreg = PyImport_ImportModule("copy_reg");
|
||||
copyreg = PyImport_ImportModuleNoBlock("copy_reg");
|
||||
if (copyreg != NULL) {
|
||||
PyObject *func, *pickler;
|
||||
|
||||
|
|
|
|||
|
|
@ -4217,7 +4217,7 @@ wait_helper(int pid, int status, struct rusage *ru)
|
|||
return posix_error();
|
||||
|
||||
if (struct_rusage == NULL) {
|
||||
PyObject *m = PyImport_ImportModule("resource");
|
||||
PyObject *m = PyImport_ImportModuleNoBlock("resource");
|
||||
if (m == NULL)
|
||||
return NULL;
|
||||
struct_rusage = PyObject_GetAttrString(m, "struct_rusage");
|
||||
|
|
|
|||
|
|
@ -222,7 +222,7 @@ int PySocketModule_ImportModuleAndAPI(void)
|
|||
void *api;
|
||||
|
||||
DPRINTF("Importing the %s C API...\n", apimodule);
|
||||
mod = PyImport_ImportModule(apimodule);
|
||||
mod = PyImport_ImportModuleNoBlock(apimodule);
|
||||
if (mod == NULL)
|
||||
goto onError;
|
||||
DPRINTF(" %s package found\n", apimodule);
|
||||
|
|
|
|||
|
|
@ -556,7 +556,7 @@ is not present, current time as returned by localtime() is used.");
|
|||
static PyObject *
|
||||
time_strptime(PyObject *self, PyObject *args)
|
||||
{
|
||||
PyObject *strptime_module = PyImport_ImportModule("_strptime");
|
||||
PyObject *strptime_module = PyImport_ImportModuleNoBlock("_strptime");
|
||||
PyObject *strptime_result;
|
||||
|
||||
if (!strptime_module)
|
||||
|
|
@ -668,7 +668,7 @@ time_tzset(PyObject *self, PyObject *unused)
|
|||
{
|
||||
PyObject* m;
|
||||
|
||||
m = PyImport_ImportModule("time");
|
||||
m = PyImport_ImportModuleNoBlock("time");
|
||||
if (m == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -766,7 +766,7 @@ get_decompress_func(void)
|
|||
let's avoid a stack overflow. */
|
||||
return NULL;
|
||||
importing_zlib = 1;
|
||||
zlib = PyImport_ImportModule("zlib"); /* import zlib */
|
||||
zlib = PyImport_ImportModuleNoBlock("zlib");
|
||||
importing_zlib = 0;
|
||||
if (zlib != NULL) {
|
||||
decompress = PyObject_GetAttrString(zlib,
|
||||
|
|
|
|||
|
|
@ -2800,7 +2800,7 @@ PyObject *PyUnicode_DecodeUnicodeEscape(const char *s,
|
|||
if (ucnhash_CAPI == NULL) {
|
||||
/* load the unicode data module */
|
||||
PyObject *m, *api;
|
||||
m = PyImport_ImportModule("unicodedata");
|
||||
m = PyImport_ImportModuleNoBlock("unicodedata");
|
||||
if (m == NULL)
|
||||
goto ucnhashError;
|
||||
api = PyObject_GetAttrString(m, "ucnhash_CAPI");
|
||||
|
|
|
|||
|
|
@ -1598,10 +1598,6 @@
|
|||
RelativePath="..\..\Python\ast.c"
|
||||
>
|
||||
</File>
|
||||
<File
|
||||
RelativePath="..\..\Python\atof.c"
|
||||
>
|
||||
</File>
|
||||
<File
|
||||
RelativePath="..\..\Python\bltinmodule.c"
|
||||
>
|
||||
|
|
|
|||
|
|
@ -1598,10 +1598,6 @@
|
|||
RelativePath="..\Python\ast.c"
|
||||
>
|
||||
</File>
|
||||
<File
|
||||
RelativePath="..\Python\atof.c"
|
||||
>
|
||||
</File>
|
||||
<File
|
||||
RelativePath="..\Python\bltinmodule.c"
|
||||
>
|
||||
|
|
|
|||
|
|
@ -711,7 +711,7 @@ PyErr_WarnExplicit(PyObject *category, const char *message,
|
|||
{
|
||||
PyObject *mod, *dict, *func = NULL;
|
||||
|
||||
mod = PyImport_ImportModule("warnings");
|
||||
mod = PyImport_ImportModuleNoBlock("warnings");
|
||||
if (mod != NULL) {
|
||||
dict = PyModule_GetDict(mod);
|
||||
func = PyDict_GetItemString(dict, "warn_explicit");
|
||||
|
|
|
|||
|
|
@ -1896,6 +1896,53 @@ PyImport_ImportModule(const char *name)
|
|||
return result;
|
||||
}
|
||||
|
||||
/* Import a module without blocking
|
||||
*
|
||||
* At first it tries to fetch the module from sys.modules. If the module was
|
||||
* never loaded before it loads it with PyImport_ImportModule() unless another
|
||||
* thread holds the import lock. In the latter case the function raises an
|
||||
* ImportError instead of blocking.
|
||||
*
|
||||
* Returns the module object with incremented ref count.
|
||||
*/
|
||||
PyObject *
|
||||
PyImport_ImportModuleNoBlock(const char *name)
|
||||
{
|
||||
PyObject *result;
|
||||
PyObject *modules;
|
||||
long me;
|
||||
|
||||
/* Try to get the module from sys.modules[name] */
|
||||
modules = PyImport_GetModuleDict();
|
||||
if (modules == NULL)
|
||||
return NULL;
|
||||
|
||||
result = PyDict_GetItemString(modules, name);
|
||||
if (result != NULL) {
|
||||
Py_INCREF(result);
|
||||
return result;
|
||||
}
|
||||
else {
|
||||
PyErr_Clear();
|
||||
}
|
||||
|
||||
/* check the import lock
|
||||
* me might be -1 but I ignore the error here, the lock function
|
||||
* takes care of the problem */
|
||||
me = PyThread_get_thread_ident();
|
||||
if (import_lock_thread == -1 || import_lock_thread == me) {
|
||||
/* no thread or me is holding the lock */
|
||||
return PyImport_ImportModule(name);
|
||||
}
|
||||
else {
|
||||
PyErr_Format(PyExc_ImportError,
|
||||
"Failed to import %.200s because the import lock"
|
||||
"is held by another thread.",
|
||||
name);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/* Forward declarations for helper routines */
|
||||
static PyObject *get_parent(PyObject *globals, char *buf,
|
||||
Py_ssize_t *p_buflen, int level);
|
||||
|
|
@ -1965,26 +2012,6 @@ import_module_level(char *name, PyObject *globals, PyObject *locals,
|
|||
return tail;
|
||||
}
|
||||
|
||||
/* For DLL compatibility */
|
||||
#undef PyImport_ImportModuleEx
|
||||
PyObject *
|
||||
PyImport_ImportModuleEx(char *name, PyObject *globals, PyObject *locals,
|
||||
PyObject *fromlist)
|
||||
{
|
||||
PyObject *result;
|
||||
lock_import();
|
||||
result = import_module_level(name, globals, locals, fromlist, -1);
|
||||
if (unlock_import() < 0) {
|
||||
Py_XDECREF(result);
|
||||
PyErr_SetString(PyExc_RuntimeError,
|
||||
"not holding the import lock");
|
||||
return NULL;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
#define PyImport_ImportModuleEx(n, g, l, f) \
|
||||
PyImport_ImportModuleLevel(n, g, l, f, -1);
|
||||
|
||||
PyObject *
|
||||
PyImport_ImportModuleLevel(char *name, PyObject *globals, PyObject *locals,
|
||||
PyObject *fromlist, int level)
|
||||
|
|
@ -2572,9 +2599,10 @@ PyImport_Import(PyObject *module_name)
|
|||
if (import == NULL)
|
||||
goto err;
|
||||
|
||||
/* Call the __import__ function with the proper argument list */
|
||||
r = PyObject_CallFunctionObjArgs(import, module_name, globals,
|
||||
globals, silly_list, NULL);
|
||||
/* Call the __import__ function with the proper argument list
|
||||
* Always use absolute import here. */
|
||||
r = PyObject_CallFunction(import, "OOOOi", module_name, globals,
|
||||
globals, silly_list, 0, NULL);
|
||||
|
||||
err:
|
||||
Py_XDECREF(globals);
|
||||
|
|
|
|||
|
|
@ -36,7 +36,7 @@ PyMac_StrError(int err)
|
|||
PyObject *m;
|
||||
PyObject *rv;
|
||||
|
||||
m = PyImport_ImportModule("MacOS");
|
||||
m = PyImport_ImportModuleNoBlock("MacOS");
|
||||
if (!m) {
|
||||
if (Py_VerboseFlag)
|
||||
PyErr_Print();
|
||||
|
|
|
|||
Loading…
Reference in New Issue