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Lib/site-packages/pipenv/vendor/dotenv/LICENSE

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+python-dotenv
+Copyright (c) 2014, Saurabh Kumar
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of python-dotenv nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+django-dotenv-rw
+Copyright (c) 2013, Ted Tieken
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of django-dotenv nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Original django-dotenv
+Copyright (c) 2013, Jacob Kaplan-Moss
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of django-dotenv nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Lib/site-packages/pipenv/vendor/dotenv/__init__.py

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+from .compat import IS_TYPE_CHECKING
+from .main import load_dotenv, get_key, set_key, unset_key, find_dotenv, dotenv_values
+
+if IS_TYPE_CHECKING:
+    from typing import Any, Optional
+
+
+def load_ipython_extension(ipython):
+    # type: (Any) -> None
+    from .ipython import load_ipython_extension
+    load_ipython_extension(ipython)
+
+
+def get_cli_string(path=None, action=None, key=None, value=None, quote=None):
+    # type: (Optional[str], Optional[str], Optional[str], Optional[str], Optional[str]) -> str
+    """Returns a string suitable for running as a shell script.
+
+    Useful for converting a arguments passed to a fabric task
+    to be passed to a `local` or `run` command.
+    """
+    command = ['dotenv']
+    if quote:
+        command.append('-q %s' % quote)
+    if path:
+        command.append('-f %s' % path)
+    if action:
+        command.append(action)
+        if key:
+            command.append(key)
+            if value:
+                if ' ' in value:
+                    command.append('"%s"' % value)
+                else:
+                    command.append(value)
+
+    return ' '.join(command).strip()
+
+
+__all__ = ['get_cli_string',
+           'load_dotenv',
+           'dotenv_values',
+           'get_key',
+           'set_key',
+           'unset_key',
+           'find_dotenv',
+           'load_ipython_extension']

Lib/site-packages/pipenv/vendor/dotenv/cli.py

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+import os
+import sys
+from subprocess import Popen
+
+try:
+    import click
+except ImportError:
+    sys.stderr.write('It seems python-dotenv is not installed with cli option. \n'
+                     'Run pip install "python-dotenv[cli]" to fix this.')
+    sys.exit(1)
+
+from .compat import IS_TYPE_CHECKING
+from .main import dotenv_values, get_key, set_key, unset_key
+from .version import __version__
+
+if IS_TYPE_CHECKING:
+    from typing import Any, List, Dict
+
+
+@click.group()
+@click.option('-f', '--file', default=os.path.join(os.getcwd(), '.env'),
+              type=click.Path(exists=True),
+              help="Location of the .env file, defaults to .env file in current working directory.")
+@click.option('-q', '--quote', default='always',
+              type=click.Choice(['always', 'never', 'auto']),
+              help="Whether to quote or not the variable values. Default mode is always. This does not affect parsing.")
+@click.version_option(version=__version__)
+@click.pass_context
+def cli(ctx, file, quote):
+    # type: (click.Context, Any, Any) -> None
+    '''This script is used to set, get or unset values from a .env file.'''
+    ctx.obj = {}
+    ctx.obj['FILE'] = file
+    ctx.obj['QUOTE'] = quote
+
+
+@cli.command()
+@click.pass_context
+def list(ctx):
+    # type: (click.Context) -> None
+    '''Display all the stored key/value.'''
+    file = ctx.obj['FILE']
+    dotenv_as_dict = dotenv_values(file)
+    for k, v in dotenv_as_dict.items():
+        click.echo('%s=%s' % (k, v))
+
+
+@cli.command()
+@click.pass_context
+@click.argument('key', required=True)
+@click.argument('value', required=True)
+def set(ctx, key, value):
+    # type: (click.Context, Any, Any) -> None
+    '''Store the given key/value.'''
+    file = ctx.obj['FILE']
+    quote = ctx.obj['QUOTE']
+    success, key, value = set_key(file, key, value, quote)
+    if success:
+        click.echo('%s=%s' % (key, value))
+    else:
+        exit(1)
+
+
+@cli.command()
+@click.pass_context
+@click.argument('key', required=True)
+def get(ctx, key):
+    # type: (click.Context, Any) -> None
+    '''Retrieve the value for the given key.'''
+    file = ctx.obj['FILE']
+    stored_value = get_key(file, key)
+    if stored_value:
+        click.echo('%s=%s' % (key, stored_value))
+    else:
+        exit(1)
+
+
+@cli.command()
+@click.pass_context
+@click.argument('key', required=True)
+def unset(ctx, key):
+    # type: (click.Context, Any) -> None
+    '''Removes the given key.'''
+    file = ctx.obj['FILE']
+    quote = ctx.obj['QUOTE']
+    success, key = unset_key(file, key, quote)
+    if success:
+        click.echo("Successfully removed %s" % key)
+    else:
+        exit(1)
+
+
+@cli.command(context_settings={'ignore_unknown_options': True})
+@click.pass_context
+@click.argument('commandline', nargs=-1, type=click.UNPROCESSED)
+def run(ctx, commandline):
+    # type: (click.Context, List[str]) -> None
+    """Run command with environment variables present."""
+    file = ctx.obj['FILE']
+    dotenv_as_dict = dotenv_values(file)
+    if not commandline:
+        click.echo('No command given.')
+        exit(1)
+    ret = run_command(commandline, dotenv_as_dict)  # type: ignore
+    exit(ret)
+
+
+def run_command(command, env):
+    # type: (List[str], Dict[str, str]) -> int
+    """Run command in sub process.
+
+    Runs the command in a sub process with the variables from `env`
+    added in the current environment variables.
+
+    Parameters
+    ----------
+    command: List[str]
+        The command and it's parameters
+    env: Dict
+        The additional environment variables
+
+    Returns
+    -------
+    int
+        The return code of the command
+
+    """
+    # copy the current environment variables and add the vales from
+    # `env`
+    cmd_env = os.environ.copy()
+    cmd_env.update(env)
+
+    p = Popen(command,
+              universal_newlines=True,
+              bufsize=0,
+              shell=False,
+              env=cmd_env)
+    _, _ = p.communicate()
+
+    return p.returncode
+
+
+if __name__ == "__main__":
+    cli()

Lib/site-packages/pipenv/vendor/dotenv/compat.py

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+import sys
+
+PY2 = sys.version_info[0] == 2  # type: bool
+
+if PY2:
+    from StringIO import StringIO  # noqa
+else:
+    from io import StringIO  # noqa
+
+
+def is_type_checking():
+    # type: () -> bool
+    try:
+        from typing import TYPE_CHECKING
+    except ImportError:  # pragma: no cover
+        return False
+    return TYPE_CHECKING
+
+
+IS_TYPE_CHECKING = is_type_checking()
+
+
+if IS_TYPE_CHECKING:
+    from typing import Text
+
+
+def to_env(text):
+    # type: (Text) -> str
+    """
+    Encode a string the same way whether it comes from the environment or a `.env` file.
+    """
+    if PY2:
+        return text.encode(sys.getfilesystemencoding() or "utf-8")
+    else:
+        return text
+
+
+def to_text(string):
+    # type: (str) -> Text
+    """
+    Make a string Unicode if it isn't already.
+
+    This is useful for defining raw unicode strings because `ur"foo"` isn't valid in
+    Python 3.
+    """
+    if PY2:
+        return string.decode("utf-8")
+    else:
+        return string

Lib/site-packages/pipenv/vendor/dotenv/ipython.py

@@ -0,0 +1,41 @@
+from __future__ import print_function
+
+from IPython.core.magic import Magics, line_magic, magics_class  # type: ignore
+from IPython.core.magic_arguments import (argument, magic_arguments,  # type: ignore
+                                          parse_argstring)  # type: ignore
+
+from .main import find_dotenv, load_dotenv
+
+
+@magics_class
+class IPythonDotEnv(Magics):
+
+    @magic_arguments()
+    @argument(
+        '-o', '--override', action='store_true',
+        help="Indicate to override existing variables"
+    )
+    @argument(
+        '-v', '--verbose', action='store_true',
+        help="Indicate function calls to be verbose"
+    )
+    @argument('dotenv_path', nargs='?', type=str, default='.env',
+              help='Search in increasingly higher folders for the `dotenv_path`')
+    @line_magic
+    def dotenv(self, line):
+        args = parse_argstring(self.dotenv, line)
+        # Locate the .env file
+        dotenv_path = args.dotenv_path
+        try:
+            dotenv_path = find_dotenv(dotenv_path, True, True)
+        except IOError:
+            print("cannot find .env file")
+            return
+
+        # Load the .env file
+        load_dotenv(dotenv_path, verbose=args.verbose, override=args.override)
+
+
+def load_ipython_extension(ipython):
+    """Register the %dotenv magic."""
+    ipython.register_magics(IPythonDotEnv)

Lib/site-packages/pipenv/vendor/dotenv/main.py

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+# -*- coding: utf-8 -*-
+from __future__ import absolute_import, print_function, unicode_literals
+
+import io
+import os
+import re
+import shutil
+import sys
+import tempfile
+import warnings
+from collections import OrderedDict
+from contextlib import contextmanager
+
+from .compat import StringIO, PY2, to_env, IS_TYPE_CHECKING
+from .parser import parse_stream
+
+if IS_TYPE_CHECKING:
+    from typing import (
+        Dict, Iterator, Match, Optional, Pattern, Union, Text, IO, Tuple
+    )
+    if sys.version_info >= (3, 6):
+        _PathLike = os.PathLike
+    else:
+        _PathLike = Text
+
+    if sys.version_info >= (3, 0):
+        _StringIO = StringIO
+    else:
+        _StringIO = StringIO[Text]
+
+__posix_variable = re.compile(r'\$\{[^\}]*\}')  # type: Pattern[Text]
+
+
+class DotEnv():
+
+    def __init__(self, dotenv_path, verbose=False, encoding=None):
+        # type: (Union[Text, _PathLike, _StringIO], bool, Union[None, Text]) -> None
+        self.dotenv_path = dotenv_path  # type: Union[Text,_PathLike, _StringIO]
+        self._dict = None  # type: Optional[Dict[Text, Text]]
+        self.verbose = verbose  # type: bool
+        self.encoding = encoding  # type: Union[None, Text]
+
+    @contextmanager
+    def _get_stream(self):
+        # type: () -> Iterator[IO[Text]]
+        if isinstance(self.dotenv_path, StringIO):
+            yield self.dotenv_path
+        elif os.path.isfile(self.dotenv_path):
+            with io.open(self.dotenv_path, encoding=self.encoding) as stream:
+                yield stream
+        else:
+            if self.verbose:
+                warnings.warn("File doesn't exist {}".format(self.dotenv_path))  # type: ignore
+            yield StringIO('')
+
+    def dict(self):
+        # type: () -> Dict[Text, Text]
+        """Return dotenv as dict"""
+        if self._dict:
+            return self._dict
+
+        values = OrderedDict(self.parse())
+        self._dict = resolve_nested_variables(values)
+        return self._dict
+
+    def parse(self):
+        # type: () -> Iterator[Tuple[Text, Text]]
+        with self._get_stream() as stream:
+            for mapping in parse_stream(stream):
+                if mapping.key is not None and mapping.value is not None:
+                    yield mapping.key, mapping.value
+
+    def set_as_environment_variables(self, override=False):
+        # type: (bool) -> bool
+        """
+        Load the current dotenv as system environemt variable.
+        """
+        for k, v in self.dict().items():
+            if k in os.environ and not override:
+                continue
+            os.environ[to_env(k)] = to_env(v)
+
+        return True
+
+    def get(self, key):
+        # type: (Text) -> Optional[Text]
+        """
+        """
+        data = self.dict()
+
+        if key in data:
+            return data[key]
+
+        if self.verbose:
+            warnings.warn("key %s not found in %s." % (key, self.dotenv_path))  # type: ignore
+
+        return None
+
+
+def get_key(dotenv_path, key_to_get):
+    # type: (Union[Text, _PathLike], Text) -> Optional[Text]
+    """
+    Gets the value of a given key from the given .env
+
+    If the .env path given doesn't exist, fails
+    """
+    return DotEnv(dotenv_path, verbose=True).get(key_to_get)
+
+
+@contextmanager
+def rewrite(path):
+    # type: (_PathLike) -> Iterator[Tuple[IO[Text], IO[Text]]]
+    try:
+        with tempfile.NamedTemporaryFile(mode="w+", delete=False) as dest:
+            with io.open(path) as source:
+                yield (source, dest)  # type: ignore
+    except BaseException:
+        if os.path.isfile(dest.name):
+            os.unlink(dest.name)
+        raise
+    else:
+        shutil.move(dest.name, path)
+
+
+def set_key(dotenv_path, key_to_set, value_to_set, quote_mode="always"):
+    # type: (_PathLike, Text, Text, Text) -> Tuple[Optional[bool], Text, Text]
+    """
+    Adds or Updates a key/value to the given .env
+
+    If the .env path given doesn't exist, fails instead of risking creating
+    an orphan .env somewhere in the filesystem
+    """
+    value_to_set = value_to_set.strip("'").strip('"')
+    if not os.path.exists(dotenv_path):
+        warnings.warn("can't write to %s - it doesn't exist." % dotenv_path)  # type: ignore
+        return None, key_to_set, value_to_set
+
+    if " " in value_to_set:
+        quote_mode = "always"
+
+    line_template = '{}="{}"\n' if quote_mode == "always" else '{}={}\n'
+    line_out = line_template.format(key_to_set, value_to_set)
+
+    with rewrite(dotenv_path) as (source, dest):
+        replaced = False
+        for mapping in parse_stream(source):
+            if mapping.key == key_to_set:
+                dest.write(line_out)
+                replaced = True
+            else:
+                dest.write(mapping.original)
+        if not replaced:
+            dest.write(line_out)
+
+    return True, key_to_set, value_to_set
+
+
+def unset_key(dotenv_path, key_to_unset, quote_mode="always"):
+    # type: (_PathLike, Text, Text) -> Tuple[Optional[bool], Text]
+    """
+    Removes a given key from the given .env
+
+    If the .env path given doesn't exist, fails
+    If the given key doesn't exist in the .env, fails
+    """
+    if not os.path.exists(dotenv_path):
+        warnings.warn("can't delete from %s - it doesn't exist." % dotenv_path)  # type: ignore
+        return None, key_to_unset
+
+    removed = False
+    with rewrite(dotenv_path) as (source, dest):
+        for mapping in parse_stream(source):
+            if mapping.key == key_to_unset:
+                removed = True
+            else:
+                dest.write(mapping.original)
+
+    if not removed:
+        warnings.warn("key %s not removed from %s - key doesn't exist." % (key_to_unset, dotenv_path))  # type: ignore
+        return None, key_to_unset
+
+    return removed, key_to_unset
+
+
+def resolve_nested_variables(values):
+    # type: (Dict[Text, Text]) -> Dict[Text, Text]
+    def _replacement(name):
+        # type: (Text) -> Text
+        """
+        get appropriate value for a variable name.
+        first search in environ, if not found,
+        then look into the dotenv variables
+        """
+        ret = os.getenv(name, new_values.get(name, ""))
+        return ret
+
+    def _re_sub_callback(match_object):
+        # type: (Match[Text]) -> Text
+        """
+        From a match object gets the variable name and returns
+        the correct replacement
+        """
+        return _replacement(match_object.group()[2:-1])
+
+    new_values = {}
+
+    for k, v in values.items():
+        new_values[k] = __posix_variable.sub(_re_sub_callback, v)
+
+    return new_values
+
+
+def _walk_to_root(path):
+    # type: (Text) -> Iterator[Text]
+    """
+    Yield directories starting from the given directory up to the root
+    """
+    if not os.path.exists(path):
+        raise IOError('Starting path not found')
+
+    if os.path.isfile(path):
+        path = os.path.dirname(path)
+
+    last_dir = None
+    current_dir = os.path.abspath(path)
+    while last_dir != current_dir:
+        yield current_dir
+        parent_dir = os.path.abspath(os.path.join(current_dir, os.path.pardir))
+        last_dir, current_dir = current_dir, parent_dir
+
+
+def find_dotenv(filename='.env', raise_error_if_not_found=False, usecwd=False):
+    # type: (Text, bool, bool) -> Text
+    """
+    Search in increasingly higher folders for the given file
+
+    Returns path to the file if found, or an empty string otherwise
+    """
+
+    def _is_interactive():
+        """ Decide whether this is running in a REPL or IPython notebook """
+        main = __import__('__main__', None, None, fromlist=['__file__'])
+        return not hasattr(main, '__file__')
+
+    if usecwd or _is_interactive():
+        # Should work without __file__, e.g. in REPL or IPython notebook.
+        path = os.getcwd()
+    else:
+        # will work for .py files
+        frame = sys._getframe()
+        # find first frame that is outside of this file
+        if PY2 and not __file__.endswith('.py'):
+            # in Python2 __file__ extension could be .pyc or .pyo (this doesn't account
+            # for edge case of Python compiled for non-standard extension)
+            current_file = __file__.rsplit('.', 1)[0] + '.py'
+        else:
+            current_file = __file__
+
+        while frame.f_code.co_filename == current_file:
+            frame = frame.f_back
+        frame_filename = frame.f_code.co_filename
+        path = os.path.dirname(os.path.abspath(frame_filename))
+
+    for dirname in _walk_to_root(path):
+        check_path = os.path.join(dirname, filename)
+        if os.path.isfile(check_path):
+            return check_path
+
+    if raise_error_if_not_found:
+        raise IOError('File not found')
+
+    return ''
+
+
+def load_dotenv(dotenv_path=None, stream=None, verbose=False, override=False, **kwargs):
+    # type: (Union[Text, _PathLike, None], Optional[_StringIO], bool, bool, Union[None, Text]) -> bool
+    """Parse a .env file and then load all the variables found as environment variables.
+
+    - *dotenv_path*: absolute or relative path to .env file.
+    - *stream*: `StringIO` object with .env content.
+    - *verbose*: whether to output the warnings related to missing .env file etc. Defaults to `False`.
+    - *override*: where to override the system environment variables with the variables in `.env` file.
+                  Defaults to `False`.
+    """
+    f = dotenv_path or stream or find_dotenv()
+    return DotEnv(f, verbose=verbose, **kwargs).set_as_environment_variables(override=override)
+
+
+def dotenv_values(dotenv_path=None, stream=None, verbose=False, **kwargs):
+    # type: (Union[Text, _PathLike, None], Optional[_StringIO], bool, Union[None, Text]) -> Dict[Text, Text]
+    f = dotenv_path or stream or find_dotenv()
+    return DotEnv(f, verbose=verbose, **kwargs).dict()

Lib/site-packages/pipenv/vendor/dotenv/parser.py

@@ -0,0 +1,163 @@
+import codecs
+import re
+
+from .compat import to_text, IS_TYPE_CHECKING
+
+
+if IS_TYPE_CHECKING:
+    from typing import (  # noqa:F401
+        IO, Iterator, Match, NamedTuple, Optional, Pattern, Sequence, Text,
+        Tuple
+    )
+
+
+def make_regex(string, extra_flags=0):
+    # type: (str, int) -> Pattern[Text]
+    return re.compile(to_text(string), re.UNICODE | extra_flags)
+
+
+_whitespace = make_regex(r"\s*", extra_flags=re.MULTILINE)
+_export = make_regex(r"(?:export[^\S\r\n]+)?")
+_single_quoted_key = make_regex(r"'([^']+)'")
+_unquoted_key = make_regex(r"([^=\#\s]+)")
+_equal_sign = make_regex(r"[^\S\r\n]*=[^\S\r\n]*")
+_single_quoted_value = make_regex(r"'((?:\\'|[^'])*)'")
+_double_quoted_value = make_regex(r'"((?:\\"|[^"])*)"')
+_unquoted_value_part = make_regex(r"([^ \r\n]*)")
+_comment = make_regex(r"(?:\s*#[^\r\n]*)?")
+_end_of_line = make_regex(r"[^\S\r\n]*(?:\r\n|\n|\r)?")
+_rest_of_line = make_regex(r"[^\r\n]*(?:\r|\n|\r\n)?")
+_double_quote_escapes = make_regex(r"\\[\\'\"abfnrtv]")
+_single_quote_escapes = make_regex(r"\\[\\']")
+
+
+try:
+    # this is necessary because we only import these from typing
+    # when we are type checking, and the linter is upset if we
+    # re-import
+    import typing
+    Binding = typing.NamedTuple("Binding", [("key", typing.Optional[typing.Text]),
+                                            ("value", typing.Optional[typing.Text]),
+                                            ("original", typing.Text)])
+except ImportError:  # pragma: no cover
+    from collections import namedtuple
+    Binding = namedtuple("Binding", ["key",  # type: ignore
+                                     "value",
+                                     "original"])  # type: Tuple[Optional[Text], Optional[Text], Text]
+
+
+class Error(Exception):
+    pass
+
+
+class Reader:
+    def __init__(self, stream):
+        # type: (IO[Text]) -> None
+        self.string = stream.read()
+        self.position = 0
+        self.mark = 0
+
+    def has_next(self):
+        # type: () -> bool
+        return self.position < len(self.string)
+
+    def set_mark(self):
+        # type: () -> None
+        self.mark = self.position
+
+    def get_marked(self):
+        # type: () -> Text
+        return self.string[self.mark:self.position]
+
+    def peek(self, count):
+        # type: (int) -> Text
+        return self.string[self.position:self.position + count]
+
+    def read(self, count):
+        # type: (int) -> Text
+        result = self.string[self.position:self.position + count]
+        if len(result) < count:
+            raise Error("read: End of string")
+        self.position += count
+        return result
+
+    def read_regex(self, regex):
+        # type: (Pattern[Text]) -> Sequence[Text]
+        match = regex.match(self.string, self.position)
+        if match is None:
+            raise Error("read_regex: Pattern not found")
+        self.position = match.end()
+        return match.groups()
+
+
+def decode_escapes(regex, string):
+    # type: (Pattern[Text], Text) -> Text
+    def decode_match(match):
+        # type: (Match[Text]) -> Text
+        return codecs.decode(match.group(0), 'unicode-escape')  # type: ignore
+
+    return regex.sub(decode_match, string)
+
+
+def parse_key(reader):
+    # type: (Reader) -> Text
+    char = reader.peek(1)
+    if char == "'":
+        (key,) = reader.read_regex(_single_quoted_key)
+    else:
+        (key,) = reader.read_regex(_unquoted_key)
+    return key
+
+
+def parse_unquoted_value(reader):
+    # type: (Reader) -> Text
+    value = u""
+    while True:
+        (part,) = reader.read_regex(_unquoted_value_part)
+        value += part
+        after = reader.peek(2)
+        if len(after) < 2 or after[0] in u"\r\n" or after[1] in u" #\r\n":
+            return value
+        value += reader.read(2)
+
+
+def parse_value(reader):
+    # type: (Reader) -> Text
+    char = reader.peek(1)
+    if char == u"'":
+        (value,) = reader.read_regex(_single_quoted_value)
+        return decode_escapes(_single_quote_escapes, value)
+    elif char == u'"':
+        (value,) = reader.read_regex(_double_quoted_value)
+        return decode_escapes(_double_quote_escapes, value)
+    elif char in (u"", u"\n", u"\r"):
+        return u""
+    else:
+        return parse_unquoted_value(reader)
+
+
+def parse_binding(reader):
+    # type: (Reader) -> Binding
+    reader.set_mark()
+    try:
+        reader.read_regex(_whitespace)
+        reader.read_regex(_export)
+        key = parse_key(reader)
+        reader.read_regex(_equal_sign)
+        value = parse_value(reader)
+        reader.read_regex(_comment)
+        reader.read_regex(_end_of_line)
+        return Binding(key=key, value=value, original=reader.get_marked())
+    except Error:
+        reader.read_regex(_rest_of_line)
+        return Binding(key=None, value=None, original=reader.get_marked())
+
+
+def parse_stream(stream):
+    # type:(IO[Text]) -> Iterator[Binding]
+    reader = Reader(stream)
+    while reader.has_next():
+        try:
+            yield parse_binding(reader)
+        except Error:
+            return

Lib/site-packages/pipenv/vendor/dotenv/version.py

@@ -0,0 +1 @@
+__version__ = "0.10.3"