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?? __init__.py(5.8 KB)
?? __main__.py(8.6 KB)
?? __pycache__
?? _cell_widths.py(9.86 KB)
?? _emoji_codes.py(136.95 KB)
?? _emoji_replace.py(1.04 KB)
?? _export_format.py(2.06 KB)
?? _extension.py(265 B)
?? _inspect.py(9.47 KB)
?? _log_render.py(3.15 KB)
?? _loop.py(1.21 KB)
?? _palettes.py(6.9 KB)
?? _pick.py(423 B)
?? _ratio.py(5.34 KB)
?? _spinners.py(19.45 KB)
?? _stack.py(351 B)
?? _timer.py(417 B)
?? _win32_console.py(22.29 KB)
?? _windows.py(1.88 KB)
?? _windows_renderer.py(2.72 KB)
?? _wrap.py(1.8 KB)
?? abc.py(890 B)
?? align.py(10.13 KB)
?? ansi.py(6.66 KB)
?? bar.py(3.19 KB)
?? box.py(9.63 KB)
?? cells.py(4.4 KB)
?? color.py(17.54 KB)
?? color_triplet.py(1.03 KB)
?? columns.py(6.96 KB)
?? console.py(93.64 KB)
?? constrain.py(1.26 KB)
?? containers.py(5.37 KB)
?? control.py(6.47 KB)
?? default_styles.py(7.77 KB)
?? diagnose.py(972 B)
?? emoji.py(2.44 KB)
?? errors.py(642 B)
?? file_proxy.py(1.58 KB)
?? filesize.py(2.45 KB)
?? highlighter.py(9.36 KB)
?? json.py(4.93 KB)
?? jupyter.py(3.18 KB)
?? layout.py(13.74 KB)
?? live.py(13.84 KB)
?? live_render.py(3.58 KB)
?? logging.py(11.2 KB)
?? markup.py(8.01 KB)
?? measure.py(5.18 KB)
?? padding.py(4.85 KB)
?? pager.py(828 B)
?? palette.py(3.32 KB)
?? panel.py(8.54 KB)
?? pretty.py(35.72 KB)
?? progress.py(58.35 KB)
?? progress_bar.py(7.97 KB)
?? prompt.py(11.04 KB)
?? protocol.py(1.36 KB)
?? region.py(166 B)
?? repr.py(4.34 KB)
?? rule.py(4.66 KB)
?? scope.py(2.78 KB)
?? screen.py(1.55 KB)
?? segment.py(23.66 KB)
?? spinner.py(4.27 KB)
?? status.py(4.32 KB)
?? style.py(25.63 KB)
?? styled.py(1.23 KB)
?? syntax.py(33.88 KB)
?? table.py(38.59 KB)
?? terminal_theme.py(3.29 KB)
?? text.py(43.62 KB)
?? theme.py(3.54 KB)
?? themes.py(102 B)
?? traceback.py(25.45 KB)
?? tree.py(8.95 KB)

Editing: prompt.py

from typing import Any, Generic, List, Optional, TextIO, TypeVar, Union, overload

from . import get_console
from .console import Console
from .text import Text, TextType

PromptType = TypeVar("PromptType")
DefaultType = TypeVar("DefaultType")

class PromptError(Exception):
    """Exception base class for prompt related errors."""

class InvalidResponse(PromptError):
    """Exception to indicate a response was invalid. Raise this within process_response() to indicate an error
    and provide an error message.

Args:
        message (Union[str, Text]): Error message.
    """

def __init__(self, message: TextType) -> None:
        self.message = message

def __rich__(self) -> TextType:
        return self.message

class PromptBase(Generic[PromptType]):
    """Ask the user for input until a valid response is received. This is the base class, see one of
    the concrete classes for examples.

response_type: type = str

validate_error_message = "[prompt.invalid]Please enter a valid value"
    illegal_choice_message = (
        "[prompt.invalid.choice]Please select one of the available options"
    )
    prompt_suffix = ": "

choices: Optional[List[str]] = None

def __init__(
        self,
        prompt: TextType = "",
        *,
        console: Optional[Console] = None,
        password: bool = False,
        choices: Optional[List[str]] = None,
        show_default: bool = True,
        show_choices: bool = True,
    ) -> None:
        self.console = console or get_console()
        self.prompt = (
            Text.from_markup(prompt, style="prompt")
            if isinstance(prompt, str)
            else prompt
        )
        self.password = password
        if choices is not None:
            self.choices = choices
        self.show_default = show_default
        self.show_choices = show_choices

@classmethod
    @overload
    def ask(
        cls,
        prompt: TextType = "",
        *,
        console: Optional[Console] = None,
        password: bool = False,
        choices: Optional[List[str]] = None,
        show_default: bool = True,
        show_choices: bool = True,
        default: DefaultType,
        stream: Optional[TextIO] = None,
    ) -> Union[DefaultType, PromptType]:
        ...

@classmethod
    @overload
    def ask(
        cls,
        prompt: TextType = "",
        *,
        console: Optional[Console] = None,
        password: bool = False,
        choices: Optional[List[str]] = None,
        show_default: bool = True,
        show_choices: bool = True,
        stream: Optional[TextIO] = None,
    ) -> PromptType:
        ...

@classmethod
    def ask(
        cls,
        prompt: TextType = "",
        *,
        console: Optional[Console] = None,
        password: bool = False,
        choices: Optional[List[str]] = None,
        show_default: bool = True,
        show_choices: bool = True,
        default: Any = ...,
        stream: Optional[TextIO] = None,
    ) -> Any:
        """Shortcut to construct and run a prompt loop and return the result.

Example:
            >>> filename = Prompt.ask("Enter a filename")

Args:
            prompt (TextType, optional): Prompt text. Defaults to "".
            console (Console, optional): A Console instance or None to use global console. Defaults to None.
            password (bool, optional): Enable password input. Defaults to False.
            choices (List[str], optional): A list of valid choices. Defaults to None.
            show_default (bool, optional): Show default in prompt. Defaults to True.
            show_choices (bool, optional): Show choices in prompt. Defaults to True.
            stream (TextIO, optional): Optional text file open for reading to get input. Defaults to None.
        """
        _prompt = cls(
            prompt,
            console=console,
            password=password,
            choices=choices,
            show_default=show_default,
            show_choices=show_choices,
        )
        return _prompt(default=default, stream=stream)

def render_default(self, default: DefaultType) -> Text:
        """Turn the supplied default in to a Text instance.

Args:
            default (DefaultType): Default value.

Returns:
            Text: Text containing rendering of default value.
        """
        return Text(f"({default})", "prompt.default")

def make_prompt(self, default: DefaultType) -> Text:
        """Make prompt text.

Args:
            default (DefaultType): Default value.

Returns:
            Text: Text to display in prompt.
        """
        prompt = self.prompt.copy()
        prompt.end = ""

if self.show_choices and self.choices:
            _choices = "/".join(self.choices)
            choices = f"[{_choices}]"
            prompt.append(" ")
            prompt.append(choices, "prompt.choices")

if (
            default != ...
            and self.show_default
            and isinstance(default, (str, self.response_type))
        ):
            prompt.append(" ")
            _default = self.render_default(default)
            prompt.append(_default)

prompt.append(self.prompt_suffix)

return prompt

@classmethod
    def get_input(
        cls,
        console: Console,
        prompt: TextType,
        password: bool,
        stream: Optional[TextIO] = None,
    ) -> str:
        """Get input from user.

Args:
            console (Console): Console instance.
            prompt (TextType): Prompt text.
            password (bool): Enable password entry.

Returns:
            str: String from user.
        """
        return console.input(prompt, password=password, stream=stream)

def check_choice(self, value: str) -> bool:
        """Check value is in the list of valid choices.

Args:
            value (str): Value entered by user.

Returns:
            bool: True if choice was valid, otherwise False.
        """
        assert self.choices is not None
        return value.strip() in self.choices

def process_response(self, value: str) -> PromptType:
        """Process response from user, convert to prompt type.

Args:
            value (str): String typed by user.

Raises:
            InvalidResponse: If ``value`` is invalid.

Returns:
            PromptType: The value to be returned from ask method.
        """
        value = value.strip()
        try:
            return_value: PromptType = self.response_type(value)
        except ValueError:
            raise InvalidResponse(self.validate_error_message)

if self.choices is not None and not self.check_choice(value):
            raise InvalidResponse(self.illegal_choice_message)

return return_value

def on_validate_error(self, value: str, error: InvalidResponse) -> None:
        """Called to handle validation error.

Args:
            value (str): String entered by user.
            error (InvalidResponse): Exception instance the initiated the error.
        """
        self.console.print(error)

def pre_prompt(self) -> None:
        """Hook to display something before the prompt."""

@overload
    def __call__(self, *, stream: Optional[TextIO] = None) -> PromptType:
        ...

@overload
    def __call__(
        self, *, default: DefaultType, stream: Optional[TextIO] = None
    ) -> Union[PromptType, DefaultType]:
        ...

def __call__(self, *, default: Any = ..., stream: Optional[TextIO] = None) -> Any:
        """Run the prompt loop.

Args:
            default (Any, optional): Optional default value.

Returns:
            PromptType: Processed value.
        """
        while True:
            self.pre_prompt()
            prompt = self.make_prompt(default)
            value = self.get_input(self.console, prompt, self.password, stream=stream)
            if value == "" and default != ...:
                return default
            try:
                return_value = self.process_response(value)
            except InvalidResponse as error:
                self.on_validate_error(value, error)
                continue
            else:
                return return_value

class Prompt(PromptBase[str]):
    """A prompt that returns a str.

Example:
        >>> name = Prompt.ask("Enter your name")

"""

response_type = str

class IntPrompt(PromptBase[int]):
    """A prompt that returns an integer.

Example:
        >>> burrito_count = IntPrompt.ask("How many burritos do you want to order")

"""

response_type = int
    validate_error_message = "[prompt.invalid]Please enter a valid integer number"

class FloatPrompt(PromptBase[int]):
    """A prompt that returns a float.

Example:
        >>> temperature = FloatPrompt.ask("Enter desired temperature")

"""

response_type = float
    validate_error_message = "[prompt.invalid]Please enter a number"

class Confirm(PromptBase[bool]):
    """A yes / no confirmation prompt.

Example:
        >>> if Confirm.ask("Continue"):
                run_job()

"""

response_type = bool
    validate_error_message = "[prompt.invalid]Please enter Y or N"
    choices: List[str] = ["y", "n"]

def render_default(self, default: DefaultType) -> Text:
        """Render the default as (y) or (n) rather than True/False."""
        yes, no = self.choices
        return Text(f"({yes})" if default else f"({no})", style="prompt.default")

def process_response(self, value: str) -> bool:
        """Convert choices to a bool."""
        value = value.strip().lower()
        if value not in self.choices:
            raise InvalidResponse(self.validate_error_message)
        return value == self.choices[0]

if __name__ == "__main__":  # pragma: no cover

from pip._vendor.rich import print

if Confirm.ask("Run [i]prompt[/i] tests?", default=True):
        while True:
            result = IntPrompt.ask(
                ":rocket: Enter a number between [b]1[/b] and [b]10[/b]", default=5
            )
            if result >= 1 and result <= 10:
                break
            print(":pile_of_poo: [prompt.invalid]Number must be between 1 and 10")
        print(f"number={result}")

while True:
            password = Prompt.ask(
                "Please enter a password [cyan](must be at least 5 characters)",
                password=True,
            )
            if len(password) >= 5:
                break
            print("[prompt.invalid]password too short")
        print(f"password={password!r}")

fruit = Prompt.ask("Enter a fruit", choices=["apple", "orange", "pear"])
        print(f"fruit={fruit!r}")

else:
        print("[b]OK :loudly_crying_face:")

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Editing: prompt.py

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