--- a/env/lib/python3.7/site-packages/click/termui.py	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,681 +0,0 @@
-import inspect
-import io
-import itertools
-import os
-import struct
-import sys
-
-from ._compat import DEFAULT_COLUMNS
-from ._compat import get_winterm_size
-from ._compat import isatty
-from ._compat import raw_input
-from ._compat import string_types
-from ._compat import strip_ansi
-from ._compat import text_type
-from ._compat import WIN
-from .exceptions import Abort
-from .exceptions import UsageError
-from .globals import resolve_color_default
-from .types import Choice
-from .types import convert_type
-from .types import Path
-from .utils import echo
-from .utils import LazyFile
-
-# The prompt functions to use.  The doc tools currently override these
-# functions to customize how they work.
-visible_prompt_func = raw_input
-
-_ansi_colors = {
-    "black": 30,
-    "red": 31,
-    "green": 32,
-    "yellow": 33,
-    "blue": 34,
-    "magenta": 35,
-    "cyan": 36,
-    "white": 37,
-    "reset": 39,
-    "bright_black": 90,
-    "bright_red": 91,
-    "bright_green": 92,
-    "bright_yellow": 93,
-    "bright_blue": 94,
-    "bright_magenta": 95,
-    "bright_cyan": 96,
-    "bright_white": 97,
-}
-_ansi_reset_all = "\033[0m"
-
-
-def hidden_prompt_func(prompt):
-    import getpass
-
-    return getpass.getpass(prompt)
-
-
-def _build_prompt(
-    text, suffix, show_default=False, default=None, show_choices=True, type=None
-):
-    prompt = text
-    if type is not None and show_choices and isinstance(type, Choice):
-        prompt += " ({})".format(", ".join(map(str, type.choices)))
-    if default is not None and show_default:
-        prompt = "{} [{}]".format(prompt, _format_default(default))
-    return prompt + suffix
-
-
-def _format_default(default):
-    if isinstance(default, (io.IOBase, LazyFile)) and hasattr(default, "name"):
-        return default.name
-
-    return default
-
-
-def prompt(
-    text,
-    default=None,
-    hide_input=False,
-    confirmation_prompt=False,
-    type=None,
-    value_proc=None,
-    prompt_suffix=": ",
-    show_default=True,
-    err=False,
-    show_choices=True,
-):
-    """Prompts a user for input.  This is a convenience function that can
-    be used to prompt a user for input later.
-
-    If the user aborts the input by sending a interrupt signal, this
-    function will catch it and raise a :exc:`Abort` exception.
-
-    .. versionadded:: 7.0
-       Added the show_choices parameter.
-
-    .. versionadded:: 6.0
-       Added unicode support for cmd.exe on Windows.
-
-    .. versionadded:: 4.0
-       Added the `err` parameter.
-
-    :param text: the text to show for the prompt.
-    :param default: the default value to use if no input happens.  If this
-                    is not given it will prompt until it's aborted.
-    :param hide_input: if this is set to true then the input value will
-                       be hidden.
-    :param confirmation_prompt: asks for confirmation for the value.
-    :param type: the type to use to check the value against.
-    :param value_proc: if this parameter is provided it's a function that
-                       is invoked instead of the type conversion to
-                       convert a value.
-    :param prompt_suffix: a suffix that should be added to the prompt.
-    :param show_default: shows or hides the default value in the prompt.
-    :param err: if set to true the file defaults to ``stderr`` instead of
-                ``stdout``, the same as with echo.
-    :param show_choices: Show or hide choices if the passed type is a Choice.
-                         For example if type is a Choice of either day or week,
-                         show_choices is true and text is "Group by" then the
-                         prompt will be "Group by (day, week): ".
-    """
-    result = None
-
-    def prompt_func(text):
-        f = hidden_prompt_func if hide_input else visible_prompt_func
-        try:
-            # Write the prompt separately so that we get nice
-            # coloring through colorama on Windows
-            echo(text, nl=False, err=err)
-            return f("")
-        except (KeyboardInterrupt, EOFError):
-            # getpass doesn't print a newline if the user aborts input with ^C.
-            # Allegedly this behavior is inherited from getpass(3).
-            # A doc bug has been filed at https://bugs.python.org/issue24711
-            if hide_input:
-                echo(None, err=err)
-            raise Abort()
-
-    if value_proc is None:
-        value_proc = convert_type(type, default)
-
-    prompt = _build_prompt(
-        text, prompt_suffix, show_default, default, show_choices, type
-    )
-
-    while 1:
-        while 1:
-            value = prompt_func(prompt)
-            if value:
-                break
-            elif default is not None:
-                if isinstance(value_proc, Path):
-                    # validate Path default value(exists, dir_okay etc.)
-                    value = default
-                    break
-                return default
-        try:
-            result = value_proc(value)
-        except UsageError as e:
-            echo("Error: {}".format(e.message), err=err)  # noqa: B306
-            continue
-        if not confirmation_prompt:
-            return result
-        while 1:
-            value2 = prompt_func("Repeat for confirmation: ")
-            if value2:
-                break
-        if value == value2:
-            return result
-        echo("Error: the two entered values do not match", err=err)
-
-
-def confirm(
-    text, default=False, abort=False, prompt_suffix=": ", show_default=True, err=False
-):
-    """Prompts for confirmation (yes/no question).
-
-    If the user aborts the input by sending a interrupt signal this
-    function will catch it and raise a :exc:`Abort` exception.
-
-    .. versionadded:: 4.0
-       Added the `err` parameter.
-
-    :param text: the question to ask.
-    :param default: the default for the prompt.
-    :param abort: if this is set to `True` a negative answer aborts the
-                  exception by raising :exc:`Abort`.
-    :param prompt_suffix: a suffix that should be added to the prompt.
-    :param show_default: shows or hides the default value in the prompt.
-    :param err: if set to true the file defaults to ``stderr`` instead of
-                ``stdout``, the same as with echo.
-    """
-    prompt = _build_prompt(
-        text, prompt_suffix, show_default, "Y/n" if default else "y/N"
-    )
-    while 1:
-        try:
-            # Write the prompt separately so that we get nice
-            # coloring through colorama on Windows
-            echo(prompt, nl=False, err=err)
-            value = visible_prompt_func("").lower().strip()
-        except (KeyboardInterrupt, EOFError):
-            raise Abort()
-        if value in ("y", "yes"):
-            rv = True
-        elif value in ("n", "no"):
-            rv = False
-        elif value == "":
-            rv = default
-        else:
-            echo("Error: invalid input", err=err)
-            continue
-        break
-    if abort and not rv:
-        raise Abort()
-    return rv
-
-
-def get_terminal_size():
-    """Returns the current size of the terminal as tuple in the form
-    ``(width, height)`` in columns and rows.
-    """
-    # If shutil has get_terminal_size() (Python 3.3 and later) use that
-    if sys.version_info >= (3, 3):
-        import shutil
-
-        shutil_get_terminal_size = getattr(shutil, "get_terminal_size", None)
-        if shutil_get_terminal_size:
-            sz = shutil_get_terminal_size()
-            return sz.columns, sz.lines
-
-    # We provide a sensible default for get_winterm_size() when being invoked
-    # inside a subprocess. Without this, it would not provide a useful input.
-    if get_winterm_size is not None:
-        size = get_winterm_size()
-        if size == (0, 0):
-            return (79, 24)
-        else:
-            return size
-
-    def ioctl_gwinsz(fd):
-        try:
-            import fcntl
-            import termios
-
-            cr = struct.unpack("hh", fcntl.ioctl(fd, termios.TIOCGWINSZ, "1234"))
-        except Exception:
-            return
-        return cr
-
-    cr = ioctl_gwinsz(0) or ioctl_gwinsz(1) or ioctl_gwinsz(2)
-    if not cr:
-        try:
-            fd = os.open(os.ctermid(), os.O_RDONLY)
-            try:
-                cr = ioctl_gwinsz(fd)
-            finally:
-                os.close(fd)
-        except Exception:
-            pass
-    if not cr or not cr[0] or not cr[1]:
-        cr = (os.environ.get("LINES", 25), os.environ.get("COLUMNS", DEFAULT_COLUMNS))
-    return int(cr[1]), int(cr[0])
-
-
-def echo_via_pager(text_or_generator, color=None):
-    """This function takes a text and shows it via an environment specific
-    pager on stdout.
-
-    .. versionchanged:: 3.0
-       Added the `color` flag.
-
-    :param text_or_generator: the text to page, or alternatively, a
-                              generator emitting the text to page.
-    :param color: controls if the pager supports ANSI colors or not.  The
-                  default is autodetection.
-    """
-    color = resolve_color_default(color)
-
-    if inspect.isgeneratorfunction(text_or_generator):
-        i = text_or_generator()
-    elif isinstance(text_or_generator, string_types):
-        i = [text_or_generator]
-    else:
-        i = iter(text_or_generator)
-
-    # convert every element of i to a text type if necessary
-    text_generator = (el if isinstance(el, string_types) else text_type(el) for el in i)
-
-    from ._termui_impl import pager
-
-    return pager(itertools.chain(text_generator, "\n"), color)
-
-
-def progressbar(
-    iterable=None,
-    length=None,
-    label=None,
-    show_eta=True,
-    show_percent=None,
-    show_pos=False,
-    item_show_func=None,
-    fill_char="#",
-    empty_char="-",
-    bar_template="%(label)s  [%(bar)s]  %(info)s",
-    info_sep="  ",
-    width=36,
-    file=None,
-    color=None,
-):
-    """This function creates an iterable context manager that can be used
-    to iterate over something while showing a progress bar.  It will
-    either iterate over the `iterable` or `length` items (that are counted
-    up).  While iteration happens, this function will print a rendered
-    progress bar to the given `file` (defaults to stdout) and will attempt
-    to calculate remaining time and more.  By default, this progress bar
-    will not be rendered if the file is not a terminal.
-
-    The context manager creates the progress bar.  When the context
-    manager is entered the progress bar is already created.  With every
-    iteration over the progress bar, the iterable passed to the bar is
-    advanced and the bar is updated.  When the context manager exits,
-    a newline is printed and the progress bar is finalized on screen.
-
-    Note: The progress bar is currently designed for use cases where the
-    total progress can be expected to take at least several seconds.
-    Because of this, the ProgressBar class object won't display
-    progress that is considered too fast, and progress where the time
-    between steps is less than a second.
-
-    No printing must happen or the progress bar will be unintentionally
-    destroyed.
-
-    Example usage::
-
-        with progressbar(items) as bar:
-            for item in bar:
-                do_something_with(item)
-
-    Alternatively, if no iterable is specified, one can manually update the
-    progress bar through the `update()` method instead of directly
-    iterating over the progress bar.  The update method accepts the number
-    of steps to increment the bar with::
-
-        with progressbar(length=chunks.total_bytes) as bar:
-            for chunk in chunks:
-                process_chunk(chunk)
-                bar.update(chunks.bytes)
-
-    .. versionadded:: 2.0
-
-    .. versionadded:: 4.0
-       Added the `color` parameter.  Added a `update` method to the
-       progressbar object.
-
-    :param iterable: an iterable to iterate over.  If not provided the length
-                     is required.
-    :param length: the number of items to iterate over.  By default the
-                   progressbar will attempt to ask the iterator about its
-                   length, which might or might not work.  If an iterable is
-                   also provided this parameter can be used to override the
-                   length.  If an iterable is not provided the progress bar
-                   will iterate over a range of that length.
-    :param label: the label to show next to the progress bar.
-    :param show_eta: enables or disables the estimated time display.  This is
-                     automatically disabled if the length cannot be
-                     determined.
-    :param show_percent: enables or disables the percentage display.  The
-                         default is `True` if the iterable has a length or
-                         `False` if not.
-    :param show_pos: enables or disables the absolute position display.  The
-                     default is `False`.
-    :param item_show_func: a function called with the current item which
-                           can return a string to show the current item
-                           next to the progress bar.  Note that the current
-                           item can be `None`!
-    :param fill_char: the character to use to show the filled part of the
-                      progress bar.
-    :param empty_char: the character to use to show the non-filled part of
-                       the progress bar.
-    :param bar_template: the format string to use as template for the bar.
-                         The parameters in it are ``label`` for the label,
-                         ``bar`` for the progress bar and ``info`` for the
-                         info section.
-    :param info_sep: the separator between multiple info items (eta etc.)
-    :param width: the width of the progress bar in characters, 0 means full
-                  terminal width
-    :param file: the file to write to.  If this is not a terminal then
-                 only the label is printed.
-    :param color: controls if the terminal supports ANSI colors or not.  The
-                  default is autodetection.  This is only needed if ANSI
-                  codes are included anywhere in the progress bar output
-                  which is not the case by default.
-    """
-    from ._termui_impl import ProgressBar
-
-    color = resolve_color_default(color)
-    return ProgressBar(
-        iterable=iterable,
-        length=length,
-        show_eta=show_eta,
-        show_percent=show_percent,
-        show_pos=show_pos,
-        item_show_func=item_show_func,
-        fill_char=fill_char,
-        empty_char=empty_char,
-        bar_template=bar_template,
-        info_sep=info_sep,
-        file=file,
-        label=label,
-        width=width,
-        color=color,
-    )
-
-
-def clear():
-    """Clears the terminal screen.  This will have the effect of clearing
-    the whole visible space of the terminal and moving the cursor to the
-    top left.  This does not do anything if not connected to a terminal.
-
-    .. versionadded:: 2.0
-    """
-    if not isatty(sys.stdout):
-        return
-    # If we're on Windows and we don't have colorama available, then we
-    # clear the screen by shelling out.  Otherwise we can use an escape
-    # sequence.
-    if WIN:
-        os.system("cls")
-    else:
-        sys.stdout.write("\033[2J\033[1;1H")
-
-
-def style(
-    text,
-    fg=None,
-    bg=None,
-    bold=None,
-    dim=None,
-    underline=None,
-    blink=None,
-    reverse=None,
-    reset=True,
-):
-    """Styles a text with ANSI styles and returns the new string.  By
-    default the styling is self contained which means that at the end
-    of the string a reset code is issued.  This can be prevented by
-    passing ``reset=False``.
-
-    Examples::
-
-        click.echo(click.style('Hello World!', fg='green'))
-        click.echo(click.style('ATTENTION!', blink=True))
-        click.echo(click.style('Some things', reverse=True, fg='cyan'))
-
-    Supported color names:
-
-    * ``black`` (might be a gray)
-    * ``red``
-    * ``green``
-    * ``yellow`` (might be an orange)
-    * ``blue``
-    * ``magenta``
-    * ``cyan``
-    * ``white`` (might be light gray)
-    * ``bright_black``
-    * ``bright_red``
-    * ``bright_green``
-    * ``bright_yellow``
-    * ``bright_blue``
-    * ``bright_magenta``
-    * ``bright_cyan``
-    * ``bright_white``
-    * ``reset`` (reset the color code only)
-
-    .. versionadded:: 2.0
-
-    .. versionadded:: 7.0
-       Added support for bright colors.
-
-    :param text: the string to style with ansi codes.
-    :param fg: if provided this will become the foreground color.
-    :param bg: if provided this will become the background color.
-    :param bold: if provided this will enable or disable bold mode.
-    :param dim: if provided this will enable or disable dim mode.  This is
-                badly supported.
-    :param underline: if provided this will enable or disable underline.
-    :param blink: if provided this will enable or disable blinking.
-    :param reverse: if provided this will enable or disable inverse
-                    rendering (foreground becomes background and the
-                    other way round).
-    :param reset: by default a reset-all code is added at the end of the
-                  string which means that styles do not carry over.  This
-                  can be disabled to compose styles.
-    """
-    bits = []
-    if fg:
-        try:
-            bits.append("\033[{}m".format(_ansi_colors[fg]))
-        except KeyError:
-            raise TypeError("Unknown color '{}'".format(fg))
-    if bg:
-        try:
-            bits.append("\033[{}m".format(_ansi_colors[bg] + 10))
-        except KeyError:
-            raise TypeError("Unknown color '{}'".format(bg))
-    if bold is not None:
-        bits.append("\033[{}m".format(1 if bold else 22))
-    if dim is not None:
-        bits.append("\033[{}m".format(2 if dim else 22))
-    if underline is not None:
-        bits.append("\033[{}m".format(4 if underline else 24))
-    if blink is not None:
-        bits.append("\033[{}m".format(5 if blink else 25))
-    if reverse is not None:
-        bits.append("\033[{}m".format(7 if reverse else 27))
-    bits.append(text)
-    if reset:
-        bits.append(_ansi_reset_all)
-    return "".join(bits)
-
-
-def unstyle(text):
-    """Removes ANSI styling information from a string.  Usually it's not
-    necessary to use this function as Click's echo function will
-    automatically remove styling if necessary.
-
-    .. versionadded:: 2.0
-
-    :param text: the text to remove style information from.
-    """
-    return strip_ansi(text)
-
-
-def secho(message=None, file=None, nl=True, err=False, color=None, **styles):
-    """This function combines :func:`echo` and :func:`style` into one
-    call.  As such the following two calls are the same::
-
-        click.secho('Hello World!', fg='green')
-        click.echo(click.style('Hello World!', fg='green'))
-
-    All keyword arguments are forwarded to the underlying functions
-    depending on which one they go with.
-
-    .. versionadded:: 2.0
-    """
-    if message is not None:
-        message = style(message, **styles)
-    return echo(message, file=file, nl=nl, err=err, color=color)
-
-
-def edit(
-    text=None, editor=None, env=None, require_save=True, extension=".txt", filename=None
-):
-    r"""Edits the given text in the defined editor.  If an editor is given
-    (should be the full path to the executable but the regular operating
-    system search path is used for finding the executable) it overrides
-    the detected editor.  Optionally, some environment variables can be
-    used.  If the editor is closed without changes, `None` is returned.  In
-    case a file is edited directly the return value is always `None` and
-    `require_save` and `extension` are ignored.
-
-    If the editor cannot be opened a :exc:`UsageError` is raised.
-
-    Note for Windows: to simplify cross-platform usage, the newlines are
-    automatically converted from POSIX to Windows and vice versa.  As such,
-    the message here will have ``\n`` as newline markers.
-
-    :param text: the text to edit.
-    :param editor: optionally the editor to use.  Defaults to automatic
-                   detection.
-    :param env: environment variables to forward to the editor.
-    :param require_save: if this is true, then not saving in the editor
-                         will make the return value become `None`.
-    :param extension: the extension to tell the editor about.  This defaults
-                      to `.txt` but changing this might change syntax
-                      highlighting.
-    :param filename: if provided it will edit this file instead of the
-                     provided text contents.  It will not use a temporary
-                     file as an indirection in that case.
-    """
-    from ._termui_impl import Editor
-
-    editor = Editor(
-        editor=editor, env=env, require_save=require_save, extension=extension
-    )
-    if filename is None:
-        return editor.edit(text)
-    editor.edit_file(filename)
-
-
-def launch(url, wait=False, locate=False):
-    """This function launches the given URL (or filename) in the default
-    viewer application for this file type.  If this is an executable, it
-    might launch the executable in a new session.  The return value is
-    the exit code of the launched application.  Usually, ``0`` indicates
-    success.
-
-    Examples::
-
-        click.launch('https://click.palletsprojects.com/')
-        click.launch('/my/downloaded/file', locate=True)
-
-    .. versionadded:: 2.0
-
-    :param url: URL or filename of the thing to launch.
-    :param wait: waits for the program to stop.
-    :param locate: if this is set to `True` then instead of launching the
-                   application associated with the URL it will attempt to
-                   launch a file manager with the file located.  This
-                   might have weird effects if the URL does not point to
-                   the filesystem.
-    """
-    from ._termui_impl import open_url
-
-    return open_url(url, wait=wait, locate=locate)
-
-
-# If this is provided, getchar() calls into this instead.  This is used
-# for unittesting purposes.
-_getchar = None
-
-
-def getchar(echo=False):
-    """Fetches a single character from the terminal and returns it.  This
-    will always return a unicode character and under certain rare
-    circumstances this might return more than one character.  The
-    situations which more than one character is returned is when for
-    whatever reason multiple characters end up in the terminal buffer or
-    standard input was not actually a terminal.
-
-    Note that this will always read from the terminal, even if something
-    is piped into the standard input.
-
-    Note for Windows: in rare cases when typing non-ASCII characters, this
-    function might wait for a second character and then return both at once.
-    This is because certain Unicode characters look like special-key markers.
-
-    .. versionadded:: 2.0
-
-    :param echo: if set to `True`, the character read will also show up on
-                 the terminal.  The default is to not show it.
-    """
-    f = _getchar
-    if f is None:
-        from ._termui_impl import getchar as f
-    return f(echo)
-
-
-def raw_terminal():
-    from ._termui_impl import raw_terminal as f
-
-    return f()
-
-
-def pause(info="Press any key to continue ...", err=False):
-    """This command stops execution and waits for the user to press any
-    key to continue.  This is similar to the Windows batch "pause"
-    command.  If the program is not run through a terminal, this command
-    will instead do nothing.
-
-    .. versionadded:: 2.0
-
-    .. versionadded:: 4.0
-       Added the `err` parameter.
-
-    :param info: the info string to print before pausing.
-    :param err: if set to message goes to ``stderr`` instead of
-                ``stdout``, the same as with echo.
-    """
-    if not isatty(sys.stdin) or not isatty(sys.stdout):
-        return
-    try:
-        if info:
-            echo(info, nl=False, err=err)
-        try:
-            getchar()
-        except (KeyboardInterrupt, EOFError):
-            pass
-    finally:
-        if info:
-            echo(err=err)