--- a/env/lib/python3.7/site-packages/lxml/includes/etree_defs.h	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,418 +0,0 @@
-#ifndef HAS_ETREE_DEFS_H
-#define HAS_ETREE_DEFS_H
-
-/* quick check for Python/libxml2/libxslt devel setup */
-#include "Python.h"
-#ifndef PY_VERSION_HEX
-#  error the development package of Python (header files etc.) is not installed correctly
-#else
-#  if PY_VERSION_HEX < 0x02070000 || PY_MAJOR_VERSION >= 3 && PY_VERSION_HEX < 0x03050000
-#  error this version of lxml requires Python 2.7, 3.5 or later
-#  endif
-#endif
-
-#include "libxml/xmlversion.h"
-#ifndef LIBXML_VERSION
-#  error the development package of libxml2 (header files etc.) is not installed correctly
-#else
-#if LIBXML_VERSION < 20700
-#  error minimum required version of libxml2 is 2.7.0
-#endif
-#endif
-
-#include "libxslt/xsltconfig.h"
-#ifndef LIBXSLT_VERSION
-#  error the development package of libxslt (header files etc.) is not installed correctly
-#else
-#if LIBXSLT_VERSION < 10123
-#  error minimum required version of libxslt is 1.1.23
-#endif
-#endif
-
-
-/* v_arg functions */
-#define va_int(ap)     va_arg(ap, int)
-#define va_charptr(ap) va_arg(ap, char *)
-
-#ifdef PYPY_VERSION
-#    define IS_PYPY 1
-#else
-#    define IS_PYPY 0
-#endif
-
-#if PY_MAJOR_VERSION >= 3
-#  define IS_PYTHON2 0  /* prefer for special casing Python 2.x */
-#  define IS_PYTHON3 1  /* avoid */
-#else
-#  define IS_PYTHON2 1
-#  define IS_PYTHON3 0
-#endif
-
-#if IS_PYTHON2
-#ifndef LXML_UNICODE_STRINGS
-#define LXML_UNICODE_STRINGS 0
-#endif
-#else
-#undef LXML_UNICODE_STRINGS
-#define LXML_UNICODE_STRINGS 1
-#endif
-
-#if !IS_PYPY
-#  define PyWeakref_LockObject(obj)          (NULL)
-#endif
-
-/* Threading is not currently supported by PyPy */
-#if IS_PYPY
-#  ifndef WITHOUT_THREADING
-#    define WITHOUT_THREADING
-#  endif
-#endif
-
-#if IS_PYPY
-#  undef PyFile_AsFile
-#  define PyFile_AsFile(o)                   (NULL)
-#  undef PyByteArray_Check
-#  define PyByteArray_Check(o)               (0)
-#elif !IS_PYTHON2
-   /* Python 3+ doesn't have PyFile_*() anymore */
-#  define PyFile_AsFile(o)                   (NULL)
-#endif
-
-#if PY_VERSION_HEX <= 0x03030000 && !(defined(CYTHON_PEP393_ENABLED) && CYTHON_PEP393_ENABLED)
-  #define PyUnicode_IS_READY(op)    (0)
-  #define PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
-  #define PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
-  #define PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
-#endif
-
-#if IS_PYPY
-#  ifndef PyUnicode_FromFormat
-#    define PyUnicode_FromFormat  PyString_FromFormat
-#  endif
-#  if !IS_PYTHON2 && !defined(PyBytes_FromFormat)
-#    ifdef PyString_FromFormat
-#      define PyBytes_FromFormat  PyString_FromFormat
-#    else
-#include <stdarg.h>
-static PyObject* PyBytes_FromFormat(const char* format, ...) {
-    PyObject *string;
-    va_list vargs;
-#ifdef HAVE_STDARG_PROTOTYPES
-    va_start(vargs, format);
-#else
-    va_start(vargs);
-#endif
-    string = PyUnicode_FromFormatV(format, vargs);
-    va_end(vargs);
-    if (string && PyUnicode_Check(string)) {
-        PyObject *bstring = PyUnicode_AsUTF8String(string);
-        Py_DECREF(string);
-        string = bstring;
-    }
-    if (string && !PyBytes_CheckExact(string)) {
-        Py_DECREF(string);
-        string = NULL;
-        PyErr_SetString(PyExc_TypeError, "String formatting and encoding failed to return bytes object");
-    }
-    return string;
-}
-#    endif
-#  endif
-#endif
-
-/* PySlice_GetIndicesEx() has wrong signature in Py<=3.1 */
-#if PY_VERSION_HEX >= 0x03020000
-#  define _lx_PySlice_GetIndicesEx(o, l, b, e, s, sl) PySlice_GetIndicesEx(o, l, b, e, s, sl)
-#else
-#  define _lx_PySlice_GetIndicesEx(o, l, b, e, s, sl) PySlice_GetIndicesEx(((PySliceObject*)o), l, b, e, s, sl)
-#endif
-
-#ifdef WITHOUT_THREADING
-#  undef PyEval_SaveThread
-#  define PyEval_SaveThread() (NULL)
-#  undef PyEval_RestoreThread
-#  define PyEval_RestoreThread(state)  if (state); else {}
-#  undef PyGILState_Ensure
-#  define PyGILState_Ensure() (PyGILState_UNLOCKED)
-#  undef PyGILState_Release
-#  define PyGILState_Release(state)  if (state); else {}
-#  undef  Py_UNBLOCK_THREADS
-#  define Py_UNBLOCK_THREADS  _save = NULL;
-#  undef  Py_BLOCK_THREADS
-#  define Py_BLOCK_THREADS  if (_save); else {}
-#endif
-
-#ifdef WITHOUT_THREADING
-#  define ENABLE_THREADING 0
-#else
-#  define ENABLE_THREADING 1
-#endif
-
-#if LIBXML_VERSION < 20704
-/* FIXME: hack to make new error reporting compile in old libxml2 versions */
-#  define xmlStructuredErrorContext NULL
-#  define xmlXIncludeProcessTreeFlagsData(n,o,d) xmlXIncludeProcessTreeFlags(n,o)
-#endif
-
-/* schematron was added in libxml2 2.6.21 */
-#ifdef LIBXML_SCHEMATRON_ENABLED
-#  define ENABLE_SCHEMATRON 1
-#else
-#  define ENABLE_SCHEMATRON 0
-#  define XML_SCHEMATRON_OUT_QUIET 0
-#  define XML_SCHEMATRON_OUT_XML 0
-#  define XML_SCHEMATRON_OUT_ERROR 0
-   typedef void xmlSchematron;
-   typedef void xmlSchematronParserCtxt;
-   typedef void xmlSchematronValidCtxt;
-#  define xmlSchematronNewDocParserCtxt(doc) NULL
-#  define xmlSchematronNewParserCtxt(file) NULL
-#  define xmlSchematronParse(ctxt) NULL
-#  define xmlSchematronFreeParserCtxt(ctxt)
-#  define xmlSchematronFree(schema)
-#  define xmlSchematronNewValidCtxt(schema, options) NULL
-#  define xmlSchematronValidateDoc(ctxt, doc) 0
-#  define xmlSchematronFreeValidCtxt(ctxt)
-#  define xmlSchematronSetValidStructuredErrors(ctxt, errorfunc, data)
-#endif
-
-#if LIBXML_VERSION < 20708
-#  define HTML_PARSE_NODEFDTD 4
-#endif
-#if LIBXML_VERSION < 20900
-#  define XML_PARSE_BIG_LINES 4194304
-#endif
-
-#include "libxml/tree.h"
-#ifndef LIBXML2_NEW_BUFFER
-   typedef xmlBuffer xmlBuf;
-#  define xmlBufContent(buf) xmlBufferContent(buf)
-#  define xmlBufUse(buf) xmlBufferLength(buf)
-#endif
-
-/* libexslt 1.1.25+ support EXSLT functions in XPath */
-#if LIBXSLT_VERSION < 10125
-#define exsltDateXpathCtxtRegister(ctxt, prefix)
-#define exsltSetsXpathCtxtRegister(ctxt, prefix)
-#define exsltMathXpathCtxtRegister(ctxt, prefix)
-#define exsltStrXpathCtxtRegister(ctxt, prefix)
-#endif
-
-#define LXML_GET_XSLT_ENCODING(result_var, style) XSLT_GET_IMPORT_PTR(result_var, style, encoding)
-
-/* work around MSDEV 6.0 */
-#if (_MSC_VER == 1200) && (WINVER < 0x0500)
-long _ftol( double ); //defined by VC6 C libs
-long _ftol2( double dblSource ) { return _ftol( dblSource ); }
-#endif
-
-#ifdef __GNUC__
-/* Test for GCC > 2.95 */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)) 
-#define unlikely_condition(x) __builtin_expect((x), 0)
-#else /* __GNUC__ > 2 ... */
-#define unlikely_condition(x) (x)
-#endif /* __GNUC__ > 2 ... */
-#else /* __GNUC__ */
-#define unlikely_condition(x) (x)
-#endif /* __GNUC__ */
-
-#ifndef Py_TYPE
-  #define Py_TYPE(ob)   (((PyObject*)(ob))->ob_type)
-#endif
-
-#define PY_NEW(T) \
-     (((PyTypeObject*)(T))->tp_new( \
-             (PyTypeObject*)(T), __pyx_empty_tuple, NULL))
-
-#define _fqtypename(o)  ((Py_TYPE(o))->tp_name)
-
-#define lxml_malloc(count, item_size) \
-    (unlikely_condition((size_t)(count) > (size_t) (PY_SSIZE_T_MAX / item_size)) ? NULL : \
-     (PyMem_Malloc((count) * item_size)))
-
-#define lxml_realloc(mem, count, item_size) \
-    (unlikely_condition((size_t)(count) > (size_t) (PY_SSIZE_T_MAX / item_size)) ? NULL : \
-     (PyMem_Realloc(mem, (count) * item_size)))
-
-#define lxml_free(mem)  PyMem_Free(mem)
-
-#if PY_MAJOR_VERSION < 3
-#define _isString(obj)   (PyString_CheckExact(obj)  || \
-                          PyUnicode_CheckExact(obj) || \
-                          PyType_IsSubtype(Py_TYPE(obj), &PyBaseString_Type))
-#else
-/* builtin subtype type checks are almost as fast as exact checks in Py2.7+
- * and Unicode is more common in Py3 */
-#define _isString(obj)   (PyUnicode_Check(obj) || PyBytes_Check(obj))
-#endif
-
-#define _isElement(c_node) \
-        (((c_node)->type == XML_ELEMENT_NODE) || \
-         ((c_node)->type == XML_COMMENT_NODE) || \
-         ((c_node)->type == XML_ENTITY_REF_NODE) || \
-         ((c_node)->type == XML_PI_NODE))
-
-#define _isElementOrXInclude(c_node) \
-        (_isElement(c_node)                     || \
-         ((c_node)->type == XML_XINCLUDE_START) || \
-         ((c_node)->type == XML_XINCLUDE_END))
-
-#define _getNs(c_node) \
-        (((c_node)->ns == 0) ? 0 : ((c_node)->ns->href))
-
-
-#include "string.h"
-static void* lxml_unpack_xmldoc_capsule(PyObject* capsule, int* is_owned) {
-    xmlDoc *c_doc;
-    void *context;
-    *is_owned = 0;
-    if (unlikely_condition(!PyCapsule_IsValid(capsule, (const char*)"libxml2:xmlDoc"))) {
-        PyErr_SetString(
-                PyExc_TypeError,
-                "Not a valid capsule. The capsule argument must be a capsule object with name libxml2:xmlDoc");
-        return NULL;
-    }
-    c_doc = (xmlDoc*) PyCapsule_GetPointer(capsule, (const char*)"libxml2:xmlDoc");
-    if (unlikely_condition(!c_doc)) return NULL;
-
-    if (unlikely_condition(c_doc->type != XML_DOCUMENT_NODE && c_doc->type != XML_HTML_DOCUMENT_NODE)) {
-        PyErr_Format(
-            PyExc_ValueError,
-            "Illegal document provided: expected XML or HTML, found %d", (int)c_doc->type);
-        return NULL;
-    }
-
-    context = PyCapsule_GetContext(capsule);
-    if (unlikely_condition(!context && PyErr_Occurred())) return NULL;
-    if (context && strcmp((const char*) context, "destructor:xmlFreeDoc") == 0) {
-        /* take ownership by setting destructor to NULL */
-        if (PyCapsule_SetDestructor(capsule, NULL) == 0) {
-            /* ownership transferred => invalidate capsule by clearing its name */
-            if (unlikely_condition(PyCapsule_SetName(capsule, NULL))) {
-                /* this should never happen since everything above succeeded */
-                xmlFreeDoc(c_doc);
-                return NULL;
-            }
-            *is_owned = 1;
-        }
-    }
-    return c_doc;
-}
-
-/* Macro pair implementation of a depth first tree walker
- *
- * Calls the code block between the BEGIN and END macros for all elements
- * below c_tree_top (exclusively), starting at c_node (inclusively iff
- * 'inclusive' is 1).  The _ELEMENT_ variants will only stop on nodes
- * that match _isElement(), the normal variant will stop on every node
- * except text nodes.
- * 
- * To traverse the node and all of its children and siblings in Pyrex, call
- *    cdef xmlNode* some_node
- *    BEGIN_FOR_EACH_ELEMENT_FROM(some_node.parent, some_node, 1)
- *    # do something with some_node
- *    END_FOR_EACH_ELEMENT_FROM(some_node)
- *
- * To traverse only the children and siblings of a node, call
- *    cdef xmlNode* some_node
- *    BEGIN_FOR_EACH_ELEMENT_FROM(some_node.parent, some_node, 0)
- *    # do something with some_node
- *    END_FOR_EACH_ELEMENT_FROM(some_node)
- *
- * To traverse only the children, do:
- *    cdef xmlNode* some_node
- *    some_node = parent_node.children
- *    BEGIN_FOR_EACH_ELEMENT_FROM(parent_node, some_node, 1)
- *    # do something with some_node
- *    END_FOR_EACH_ELEMENT_FROM(some_node)
- *
- * NOTE: 'some_node' MUST be a plain 'xmlNode*' !
- *
- * NOTE: parent modification during the walk can divert the iterator, but
- *       should not segfault !
- */
-
-#define _LX__ELEMENT_MATCH(c_node, only_elements)  \
-    ((only_elements) ? (_isElement(c_node)) : 1)
-
-#define _LX__ADVANCE_TO_NEXT(c_node, only_elements)                        \
-    while ((c_node != 0) && (!_LX__ELEMENT_MATCH(c_node, only_elements)))  \
-        c_node = c_node->next;
-
-#define _LX__TRAVERSE_TO_NEXT(c_stop_node, c_node, only_elements)   \
-{                                                                   \
-    /* walk through children first */                               \
-    xmlNode* _lx__next = c_node->children;		            \
-    if (_lx__next != 0) {                                           \
-        if (c_node->type == XML_ENTITY_REF_NODE || c_node->type == XML_DTD_NODE) { \
-            _lx__next = 0;                                          \
-        } else {                                                    \
-            _LX__ADVANCE_TO_NEXT(_lx__next, only_elements)	    \
-        }                                                           \
-    }							            \
-    if ((_lx__next == 0) && (c_node != c_stop_node)) {              \
-        /* try siblings */                                          \
-        _lx__next = c_node->next;                                   \
-        _LX__ADVANCE_TO_NEXT(_lx__next, only_elements)              \
-        /* back off through parents */                              \
-        while (_lx__next == 0) {                                    \
-            c_node = c_node->parent;                                \
-            if (c_node == 0)                                        \
-                break;                                              \
-            if (c_node == c_stop_node)                              \
-                break;                                              \
-            if ((only_elements) && !_isElement(c_node))	            \
-                break;                                              \
-            /* we already traversed the parents -> siblings */      \
-            _lx__next = c_node->next;                               \
-            _LX__ADVANCE_TO_NEXT(_lx__next, only_elements)	    \
-        }                                                           \
-    }                                                               \
-    c_node = _lx__next;                                             \
-}
-
-#define _LX__BEGIN_FOR_EACH_FROM(c_tree_top, c_node, inclusive, only_elements)     \
-{									      \
-    if (c_node != 0) {							      \
-        const xmlNode* _lx__tree_top = (c_tree_top);                          \
-        const int _lx__only_elements = (only_elements);                       \
-        /* make sure we start at an element */                   	      \
-        if (!_LX__ELEMENT_MATCH(c_node, _lx__only_elements)) {		      \
-            /* we skip the node, so 'inclusive' is irrelevant */              \
-            if (c_node == _lx__tree_top)                                      \
-                c_node = 0; /* nothing to traverse */                         \
-            else {                                                            \
-                c_node = c_node->next;                                        \
-                _LX__ADVANCE_TO_NEXT(c_node, _lx__only_elements)              \
-            }                                                                 \
-        } else if (! (inclusive)) {                                           \
-            /* skip the first node */                                         \
-            _LX__TRAVERSE_TO_NEXT(_lx__tree_top, c_node, _lx__only_elements)  \
-        }                                                                     \
-                                                                              \
-        /* now run the user code on the elements we find */                   \
-        while (c_node != 0) {                                                 \
-            /* here goes the code to be run for each element */
-
-#define _LX__END_FOR_EACH_FROM(c_node)                                        \
-            _LX__TRAVERSE_TO_NEXT(_lx__tree_top, c_node, _lx__only_elements)  \
-        }                                                                     \
-    }                                                                         \
-}
-
-
-#define BEGIN_FOR_EACH_ELEMENT_FROM(c_tree_top, c_node, inclusive)   \
-    _LX__BEGIN_FOR_EACH_FROM(c_tree_top, c_node, inclusive, 1)
-
-#define END_FOR_EACH_ELEMENT_FROM(c_node)   \
-    _LX__END_FOR_EACH_FROM(c_node)
-
-#define BEGIN_FOR_EACH_FROM(c_tree_top, c_node, inclusive)   \
-    _LX__BEGIN_FOR_EACH_FROM(c_tree_top, c_node, inclusive, 0)
-
-#define END_FOR_EACH_FROM(c_node)   \
-    _LX__END_FOR_EACH_FROM(c_node)
-
-
-#endif /* HAS_ETREE_DEFS_H */