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Metadata-Version: 1.1
Name: PyICU
Version: 1.8
Summary: Python extension wrapping the ICU C++ API
Home-page: http://pyicu.osafoundation.org/
Author: Open Source Applications Foundation
Author-email: vajda@osafoundation.org
License: UNKNOWN
Description: 
        ---------------------
        README file for PyICU
        ---------------------
        
        .. contents::
        
        
        Welcome
        -------
        
        Welcome to PyICU, a Python extension wrapping IBM's International
        Components for Unicode C++ library (ICU).
        
        PyICU is a project maintained by the Open Source Applications Foundation.
        
        The ICU homepage is: http://site.icu-project.org/
        
        
        Building PyICU
        --------------
        
        Before building PyICU the ICU libraries must be built and installed. Refer
        to each system's instructions for more information.
        
        PyICU is built with distutils or setuptools:
           - verify that the ``INCLUDES``, ``LFLAGS``, ``CFLAGS`` and ``LIBRARIES``
             dictionaries in ``setup.py`` contain correct values for your platform
           - ``python setup.py build``
           - ``sudo python setup.py install``
        
        
        Running PyICU
        -------------
        
          - Mac OS X
            Make sure that ``DYLD_LIBRARY_PATH`` contains paths to the directory(ies)
            containing the ICU libs.
        
          - Linux & Solaris
            Make sure that ``LD_LIBRARY_PATH`` contains paths to the directory(ies)
            containing the ICU libs or that you added the corresponding ``-rpath``
            argument to ``LFLAGS``.
        
          - Windows
            Make sure that ``PATH`` contains paths to the directory(ies)
            containing the ICU DLLs.
        
        
        What's available
        ----------------
        
        See the ``CHANGES`` file for an up to date log of changes and additions.
        
        
        API Documentation
        -----------------
        
        There is no API documentation for PyICU. The API for ICU is documented at
        http://icu-project.org/apiref/icu4c/ and the following patterns can be
        used to translate from the C++ APIs to the corresponding Python APIs.
        
          - strings
        
            The ICU string type, ``UnicodeString``, is a type pointing at a mutable
            array of ``UChar`` Unicode 16-bit wide characters. The Python unicode type
            is an immutable string of 16-bit or 32-bit wide Unicode characters.
        
            Because of these differences, ``UnicodeString`` and Python's ``unicode``
            type are not merged into the same type when crossing the C++ boundary.
            ICU APIs taking ``UnicodeString`` arguments have been overloaded to also
            accept Python str or unicode type arguments. In the case of ``str``
            objects, ``utf-8`` encoding is assumed when converting them to
            ``UnicodeString`` objects.
        
            To convert a Python ``str`` encoded in a encoding other than ``utf-8`` to
            an ICU ``UnicodeString`` use the ``UnicodeString(str, encodingName)``
            constructor.
        
            ICU's C++ APIs accept and return ``UnicodeString`` arguments in several
            ways: by value, by pointer or by reference.
            When an ICU C++ API is documented to accept a ``UnicodeString`` reference
            parameter, it is safe to assume that there are several corresponding
            PyICU python APIs making it accessible in simpler ways:
        
            For example, the
            ``'UnicodeString &Locale::getDisplayName(UnicodeString &)'`` API,
            documented at
            http://icu-project.org/apiref/icu4c/classLocale.html
            can be invoked from Python in several ways:
        
            1. The ICU way
        
                >>> from icu import UnicodeString, Locale
                >>> locale = Locale('pt_BR')
                >>> string = UnicodeString()
                >>> name = locale.getDisplayName(string)
                >>> name
                <UnicodeString: Portuguese (Brazil)>
                >>> name is string
                True                  <-- string arg was returned, modified in place
        
            2. The Python way
        
                >>> from icu import Locale
                >>> locale = Locale('pt_BR')
                >>> name = locale.getDisplayName()
                >>> name
                u'Portuguese (Brazil)'
        
                A ``UnicodeString`` object was allocated and converted to a Python
                ``unicode`` object.
        
            A UnicodeString can be coerced to a Python unicode string with Python's
            ``unicode()`` constructor. The usual ``len()``, ``str()``, comparison,
            ``[]`` and ``[:]`` operators are all available, with the additional
            twists that slicing is not read-only and that ``+=`` is also available
            since a UnicodeString is mutable. For example:
        
                >>> name = locale.getDisplayName()
                u'Portuguese (Brazil)'
                >>> name = UnicodeString(name)
                >>> name
                <UnicodeString: Portuguese (Brazil)>
                >>> unicode(name)
                u'Portuguese (Brazil)'
                >>> len(name)
                19
                >>> str(name)           <-- works when chars fit with default encoding
                'Portuguese (Brazil)'
                >>> name[3]
                u't'
                >>> name[12:18]
                <UnicodeString: Brazil>
                >>> name[12:18] = 'the country of Brasil'
                >>> name
                <UnicodeString: Portuguese (the country of Brasil)>
                >>> name += ' oh joy'
                >>> name
                <UnicodeString: Portuguese (the country of Brasil) oh joy>
        
          - error reporting
        
            The C++ ICU library does not use C++ exceptions to report errors. ICU
            C++ APIs return errors via a ``UErrorCode`` reference argument. All such
            APIs are wrapped by Python APIs that omit this argument and throw an
            ``ICUError`` Python exception instead. The same is true for ICU APIs
            taking both a ``ParseError`` and a ``UErrorCode``, they are both to be
            omitted.
        
            For example, the ``'UnicodeString &DateFormat::format(const Formattable &,
            UnicodeString &, UErrorCode &)'`` API, documented at
            http://icu-project.org/apiref/icu4c/classDateFormat.html
            is invoked from Python with:
        
                >>> from icu import DateFormat, Formattable
                >>> df = DateFormat.createInstance()
                >>> df
                <SimpleDateFormat: M/d/yy h:mm a>
                >>> f = Formattable(940284258.0, Formattable.kIsDate)
                >>> df.format(f)
                u'10/18/99 3:04 PM'
             
            Of course, the simpler ``'UnicodeString &DateFormat::format(UDate,
            UnicodeString &)'`` documented here:
            http://icu-project.org/apiref/icu4c/classDateFormat.html
            can be used too:
        
                >>> from icu import DateFormat
                >>> df = DateFormat.createInstance()
                >>> df
                <SimpleDateFormat: M/d/yy h:mm a>
                >>> df.format(940284258.0)
                u'10/18/99 3:04 PM'
        
          - dates
        
            ICU uses a double floating point type called ``UDate`` that represents the
            number of milliseconds elapsed since 1970-jan-01 UTC for dates.
        
            In Python, the value returned by the ``time`` module's ``time()``
            function is the number of seconds since 1970-jan-01 UTC. Because of this
            difference, floating point values are multiplied by 1000 when passed to
            APIs taking ``UDate`` and divided by 1000 when returned as ``UDate``.
        
            Python's ``datetime`` objects, with or without timezone information, can
            also be used with APIs taking ``UDate`` arguments. The ``datetime``
            objects get converted to ``UDate`` when crossing into the C++ layer.
        
          - arrays
        
            Many ICU API take array arguments. A list of elements of the array
            element types is to be passed from Python.
        
          - StringEnumeration
        
            An ICU ``StringEnumeration`` has three ``next`` methods: ``next()`` which
            returns a ``str`` objects, ``unext()`` which returns ``unicode`` objects
            and ``snext()`` which returns ``UnicodeString`` objects.
            Any of these methods can be used as an iterator, using the Python
            built-in ``iter`` function. 
        
            For example, let ``e`` be a ``StringEnumeration`` instance::
        
              [s for s in e] is a list of 'str' objects
              [s for s in iter(e.unext, None)] is a list of 'unicode' objects
              [s for s in iter(e.snext, None)] is a list of 'UnicodeString' objects
        
          - timezones
        
            The ICU ``TimeZone`` type may be wrapped with an ``ICUtzinfo`` type for
            usage with Python's ``datetime`` type. For example::
        
               tz = ICUtzinfo(TimeZone.createTimeZone('US/Mountain'))
               datetime.now(tz)
        
            or, even simpler::
        
               tz = ICUtzinfo.getInstance('Pacific/Fiji')
               datetime.now(tz)
        
            To get the default time zone use::
        
               defaultTZ = ICUtzinfo.getDefault()
        
            To get the time zone's id, use the ``tzid`` attribute or coerce the time
            zone to a string::
        
               ICUtzinfo.getInstance('Pacific/Fiji').tzid -> 'Pacific/Fiji'
               str(ICUtzinfo.getInstance('Pacific/Fiji')) -> 'Pacific/Fiji'
        
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: Console
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: C++
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Topic :: Software Development :: Localization
Classifier: Topic :: Software Development :: Internationalization