Application: gvSIG desktop » gvSIG scripting

"""

Compatibility...

"""

import sys

py3k = sys.version_info >= (3, 0)

if py3k: # pragma: no cover

    string_compare = str

else: # pragma: no cover

    string_compare = (str, unicode)

# Unicode compatibility, borrowed from 'six'

if py3k: # pragma: no cover

    def u(s):

        """

        Convert to Unicode with py3k

        """

        return s

else: # pragma: no cover

    def u(s):

        """

        Convert to Unicode with unicode escaping

        """

        return unicode(s.replace(r'\\', r'\\\\'), 'unicode_escape')

if py3k: # pragma: no cover

    from urllib.parse import urlencode, quote # pylint: disable=W0611,F0401,W0611,E0611

    from urllib.request import (Request, urlopen, # pylint: disable=W0611,F0401,W0611,E0611

                                build_opener, ProxyHandler,

                                URLError, install_opener,

                                HTTPPasswordMgrWithDefaultRealm,

                                HTTPBasicAuthHandler)

    from urllib.error import HTTPError # pylint: disable=W0611,F0401,W0611,E0611

    def itervalues(d):

        """

        Function for iterating on values due to methods

        renaming between Python 2 and 3 versions

        For Python2

        """

        return iter(d.values())

    def iteritems(d):

        """

        Function for iterating on items due to methods

        renaming between Python 2 and 3 versions

        For Python2

        """

        return iter(d.items())

else: # pragma: no cover

    from urllib import urlencode as original_urlencode, quote # pylint: disable=W0611,F0401,W0611,E0611

    from urllib2 import (Request, HTTPError,   # pylint: disable=W0611,F0401,W0611,E0611

                         ProxyHandler, URLError, urlopen,

                         build_opener, install_opener,

                         HTTPPasswordMgrWithDefaultRealm,

                         HTTPBasicAuthHandler)

    def force_str(str_or_unicode):

        """

        Python2-only, ensures that a string is encoding to a str.

        """

        if isinstance(str_or_unicode, unicode):

            return str_or_unicode.encode('utf-8')

        else:

            return str_or_unicode

    def urlencode(query, doseq=0):

        """

        A version of Python's urllib.urlencode() function that can operate on

        unicode strings. The parameters are first cast to UTF-8 encoded strings

        and then encoded as per normal.

        Based on the urlencode from django.utils.http

        """

        if hasattr(query, 'items'):

            query = query.items()

        return original_urlencode(

            [(force_str(k),

              [force_str(i) for i in v]

              if isinstance(v, (list, tuple)) else force_str(v))

             for k, v in query],

            doseq)

    def itervalues(d):

        """

        Function for iterating on values due to methods

        renaming between Python 2 and 3 versions

        For Python3

        """

        return d.itervalues()

    def iteritems(d):

        """

        Function for iterating on items due to methods

        renaming between Python 2 and 3 versions

        For Python3

        """

        return d.iteritems()