--- a/env/lib/python3.7/site-packages/ruamel/yaml/reader.py	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,311 +0,0 @@
-# coding: utf-8
-
-from __future__ import absolute_import
-
-# This module contains abstractions for the input stream. You don't have to
-# looks further, there are no pretty code.
-#
-# We define two classes here.
-#
-#   Mark(source, line, column)
-# It's just a record and its only use is producing nice error messages.
-# Parser does not use it for any other purposes.
-#
-#   Reader(source, data)
-# Reader determines the encoding of `data` and converts it to unicode.
-# Reader provides the following methods and attributes:
-#   reader.peek(length=1) - return the next `length` characters
-#   reader.forward(length=1) - move the current position to `length`
-#      characters.
-#   reader.index - the number of the current character.
-#   reader.line, stream.column - the line and the column of the current
-#      character.
-
-import codecs
-
-from ruamel.yaml.error import YAMLError, FileMark, StringMark, YAMLStreamError
-from ruamel.yaml.compat import text_type, binary_type, PY3, UNICODE_SIZE
-from ruamel.yaml.util import RegExp
-
-if False:  # MYPY
-    from typing import Any, Dict, Optional, List, Union, Text, Tuple, Optional  # NOQA
-#    from ruamel.yaml.compat import StreamTextType  # NOQA
-
-__all__ = ['Reader', 'ReaderError']
-
-
-class ReaderError(YAMLError):
-    def __init__(self, name, position, character, encoding, reason):
-        # type: (Any, Any, Any, Any, Any) -> None
-        self.name = name
-        self.character = character
-        self.position = position
-        self.encoding = encoding
-        self.reason = reason
-
-    def __str__(self):
-        # type: () -> str
-        if isinstance(self.character, binary_type):
-            return "'%s' codec can't decode byte #x%02x: %s\n" '  in "%s", position %d' % (
-                self.encoding,
-                ord(self.character),
-                self.reason,
-                self.name,
-                self.position,
-            )
-        else:
-            return 'unacceptable character #x%04x: %s\n' '  in "%s", position %d' % (
-                self.character,
-                self.reason,
-                self.name,
-                self.position,
-            )
-
-
-class Reader(object):
-    # Reader:
-    # - determines the data encoding and converts it to a unicode string,
-    # - checks if characters are in allowed range,
-    # - adds '\0' to the end.
-
-    # Reader accepts
-    #  - a `str` object (PY2) / a `bytes` object (PY3),
-    #  - a `unicode` object (PY2) / a `str` object (PY3),
-    #  - a file-like object with its `read` method returning `str`,
-    #  - a file-like object with its `read` method returning `unicode`.
-
-    # Yeah, it's ugly and slow.
-
-    def __init__(self, stream, loader=None):
-        # type: (Any, Any) -> None
-        self.loader = loader
-        if self.loader is not None and getattr(self.loader, '_reader', None) is None:
-            self.loader._reader = self
-        self.reset_reader()
-        self.stream = stream  # type: Any  # as .read is called
-
-    def reset_reader(self):
-        # type: () -> None
-        self.name = None  # type: Any
-        self.stream_pointer = 0
-        self.eof = True
-        self.buffer = ""
-        self.pointer = 0
-        self.raw_buffer = None  # type: Any
-        self.raw_decode = None
-        self.encoding = None  # type: Optional[Text]
-        self.index = 0
-        self.line = 0
-        self.column = 0
-
-    @property
-    def stream(self):
-        # type: () -> Any
-        try:
-            return self._stream
-        except AttributeError:
-            raise YAMLStreamError('input stream needs to specified')
-
-    @stream.setter
-    def stream(self, val):
-        # type: (Any) -> None
-        if val is None:
-            return
-        self._stream = None
-        if isinstance(val, text_type):
-            self.name = '<unicode string>'
-            self.check_printable(val)
-            self.buffer = val + u'\0'  # type: ignore
-        elif isinstance(val, binary_type):
-            self.name = '<byte string>'
-            self.raw_buffer = val
-            self.determine_encoding()
-        else:
-            if not hasattr(val, 'read'):
-                raise YAMLStreamError('stream argument needs to have a read() method')
-            self._stream = val
-            self.name = getattr(self.stream, 'name', '<file>')
-            self.eof = False
-            self.raw_buffer = None
-            self.determine_encoding()
-
-    def peek(self, index=0):
-        # type: (int) -> Text
-        try:
-            return self.buffer[self.pointer + index]
-        except IndexError:
-            self.update(index + 1)
-            return self.buffer[self.pointer + index]
-
-    def prefix(self, length=1):
-        # type: (int) -> Any
-        if self.pointer + length >= len(self.buffer):
-            self.update(length)
-        return self.buffer[self.pointer : self.pointer + length]
-
-    def forward_1_1(self, length=1):
-        # type: (int) -> None
-        if self.pointer + length + 1 >= len(self.buffer):
-            self.update(length + 1)
-        while length != 0:
-            ch = self.buffer[self.pointer]
-            self.pointer += 1
-            self.index += 1
-            if ch in u'\n\x85\u2028\u2029' or (
-                ch == u'\r' and self.buffer[self.pointer] != u'\n'
-            ):
-                self.line += 1
-                self.column = 0
-            elif ch != u'\uFEFF':
-                self.column += 1
-            length -= 1
-
-    def forward(self, length=1):
-        # type: (int) -> None
-        if self.pointer + length + 1 >= len(self.buffer):
-            self.update(length + 1)
-        while length != 0:
-            ch = self.buffer[self.pointer]
-            self.pointer += 1
-            self.index += 1
-            if ch == u'\n' or (ch == u'\r' and self.buffer[self.pointer] != u'\n'):
-                self.line += 1
-                self.column = 0
-            elif ch != u'\uFEFF':
-                self.column += 1
-            length -= 1
-
-    def get_mark(self):
-        # type: () -> Any
-        if self.stream is None:
-            return StringMark(
-                self.name, self.index, self.line, self.column, self.buffer, self.pointer
-            )
-        else:
-            return FileMark(self.name, self.index, self.line, self.column)
-
-    def determine_encoding(self):
-        # type: () -> None
-        while not self.eof and (self.raw_buffer is None or len(self.raw_buffer) < 2):
-            self.update_raw()
-        if isinstance(self.raw_buffer, binary_type):
-            if self.raw_buffer.startswith(codecs.BOM_UTF16_LE):
-                self.raw_decode = codecs.utf_16_le_decode  # type: ignore
-                self.encoding = 'utf-16-le'
-            elif self.raw_buffer.startswith(codecs.BOM_UTF16_BE):
-                self.raw_decode = codecs.utf_16_be_decode  # type: ignore
-                self.encoding = 'utf-16-be'
-            else:
-                self.raw_decode = codecs.utf_8_decode  # type: ignore
-                self.encoding = 'utf-8'
-        self.update(1)
-
-    if UNICODE_SIZE == 2:
-        NON_PRINTABLE = RegExp(
-            u'[^\x09\x0A\x0D\x20-\x7E\x85' u'\xA0-\uD7FF' u'\uE000-\uFFFD' u']'
-        )
-    else:
-        NON_PRINTABLE = RegExp(
-            u'[^\x09\x0A\x0D\x20-\x7E\x85'
-            u'\xA0-\uD7FF'
-            u'\uE000-\uFFFD'
-            u'\U00010000-\U0010FFFF'
-            u']'
-        )
-
-    _printable_ascii = ('\x09\x0A\x0D' + "".join(map(chr, range(0x20, 0x7F)))).encode('ascii')
-
-    @classmethod
-    def _get_non_printable_ascii(cls, data):  # type: ignore
-        # type: (Text, bytes) -> Optional[Tuple[int, Text]]
-        ascii_bytes = data.encode('ascii')
-        non_printables = ascii_bytes.translate(None, cls._printable_ascii)  # type: ignore
-        if not non_printables:
-            return None
-        non_printable = non_printables[:1]
-        return ascii_bytes.index(non_printable), non_printable.decode('ascii')
-
-    @classmethod
-    def _get_non_printable_regex(cls, data):
-        # type: (Text) -> Optional[Tuple[int, Text]]
-        match = cls.NON_PRINTABLE.search(data)
-        if not bool(match):
-            return None
-        return match.start(), match.group()
-
-    @classmethod
-    def _get_non_printable(cls, data):
-        # type: (Text) -> Optional[Tuple[int, Text]]
-        try:
-            return cls._get_non_printable_ascii(data)  # type: ignore
-        except UnicodeEncodeError:
-            return cls._get_non_printable_regex(data)
-
-    def check_printable(self, data):
-        # type: (Any) -> None
-        non_printable_match = self._get_non_printable(data)
-        if non_printable_match is not None:
-            start, character = non_printable_match
-            position = self.index + (len(self.buffer) - self.pointer) + start
-            raise ReaderError(
-                self.name,
-                position,
-                ord(character),
-                'unicode',
-                'special characters are not allowed',
-            )
-
-    def update(self, length):
-        # type: (int) -> None
-        if self.raw_buffer is None:
-            return
-        self.buffer = self.buffer[self.pointer :]
-        self.pointer = 0
-        while len(self.buffer) < length:
-            if not self.eof:
-                self.update_raw()
-            if self.raw_decode is not None:
-                try:
-                    data, converted = self.raw_decode(self.raw_buffer, 'strict', self.eof)
-                except UnicodeDecodeError as exc:
-                    if PY3:
-                        character = self.raw_buffer[exc.start]
-                    else:
-                        character = exc.object[exc.start]
-                    if self.stream is not None:
-                        position = self.stream_pointer - len(self.raw_buffer) + exc.start
-                    elif self.stream is not None:
-                        position = self.stream_pointer - len(self.raw_buffer) + exc.start
-                    else:
-                        position = exc.start
-                    raise ReaderError(self.name, position, character, exc.encoding, exc.reason)
-            else:
-                data = self.raw_buffer
-                converted = len(data)
-            self.check_printable(data)
-            self.buffer += data
-            self.raw_buffer = self.raw_buffer[converted:]
-            if self.eof:
-                self.buffer += '\0'
-                self.raw_buffer = None
-                break
-
-    def update_raw(self, size=None):
-        # type: (Optional[int]) -> None
-        if size is None:
-            size = 4096 if PY3 else 1024
-        data = self.stream.read(size)
-        if self.raw_buffer is None:
-            self.raw_buffer = data
-        else:
-            self.raw_buffer += data
-        self.stream_pointer += len(data)
-        if not data:
-            self.eof = True
-
-
-# try:
-#     import psyco
-#     psyco.bind(Reader)
-# except ImportError:
-#     pass