Library import 16 (#2433)

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1 files changed, 94 insertions, 0 deletions

diff --git a/contrib/tools/python3/Lib/xml/sax/__init__.py b/contrib/tools/python3/Lib/xml/sax/__init__.py
new file mode 100644
index 0000000000..b657310207
--- /dev/null
+++ b/contrib/tools/python3/Lib/xml/sax/__init__.py
@@ -0,0 +1,94 @@
+"""Simple API for XML (SAX) implementation for Python.
+
+This module provides an implementation of the SAX 2 interface;
+information about the Java version of the interface can be found at
+http://www.megginson.com/SAX/.  The Python version of the interface is
+documented at <...>.
+
+This package contains the following modules:
+
+handler -- Base classes and constants which define the SAX 2 API for
+           the 'client-side' of SAX for Python.
+
+saxutils -- Implementation of the convenience classes commonly used to
+            work with SAX.
+
+xmlreader -- Base classes and constants which define the SAX 2 API for
+             the parsers used with SAX for Python.
+
+expatreader -- Driver that allows use of the Expat parser with SAX.
+"""
+
+from .xmlreader import InputSource
+from .handler import ContentHandler, ErrorHandler
+from ._exceptions import SAXException, SAXNotRecognizedException, \
+                        SAXParseException, SAXNotSupportedException, \
+                        SAXReaderNotAvailable
+
+
+def parse(source, handler, errorHandler=ErrorHandler()):
+    parser = make_parser()
+    parser.setContentHandler(handler)
+    parser.setErrorHandler(errorHandler)
+    parser.parse(source)
+
+def parseString(string, handler, errorHandler=ErrorHandler()):
+    import io
+    if errorHandler is None:
+        errorHandler = ErrorHandler()
+    parser = make_parser()
+    parser.setContentHandler(handler)
+    parser.setErrorHandler(errorHandler)
+
+    inpsrc = InputSource()
+    if isinstance(string, str):
+        inpsrc.setCharacterStream(io.StringIO(string))
+    else:
+        inpsrc.setByteStream(io.BytesIO(string))
+    parser.parse(inpsrc)
+
+# this is the parser list used by the make_parser function if no
+# alternatives are given as parameters to the function
+
+default_parser_list = ["xml.sax.expatreader"]
+
+# tell modulefinder that importing sax potentially imports expatreader
+_false = 0
+if _false:
+    import xml.sax.expatreader
+
+import os, sys
+if not sys.flags.ignore_environment and "PY_SAX_PARSER" in os.environ:
+    default_parser_list = os.environ["PY_SAX_PARSER"].split(",")
+del os, sys
+
+
+def make_parser(parser_list=()):
+    """Creates and returns a SAX parser.
+
+    Creates the first parser it is able to instantiate of the ones
+    given in the iterable created by chaining parser_list and
+    default_parser_list.  The iterables must contain the names of Python
+    modules containing both a SAX parser and a create_parser function."""
+
+    for parser_name in list(parser_list) + default_parser_list:
+        try:
+            return _create_parser(parser_name)
+        except ImportError:
+            import sys
+            if parser_name in sys.modules:
+                # The parser module was found, but importing it
+                # failed unexpectedly, pass this exception through
+                raise
+        except SAXReaderNotAvailable:
+            # The parser module detected that it won't work properly,
+            # so try the next one
+            pass
+
+    raise SAXReaderNotAvailable("No parsers found", None)
+
+# --- Internal utility methods used by make_parser
+
+def _create_parser(parser_name):
+    drv_module = __import__(parser_name,{},{},['create_parser'])
+    return drv_module.create_parser()