certbot.display.util module

Certbot display.

This module (certbot.display.util) or its companion certbot.display.ops should be used whenever:

• Displaying status information to the user on the terminal

• Collecting information from the user via prompts

Other messages can use the logging module. See log.py.

certbot.display.util.OK = 'ok'

Display exit code indicating user acceptance.

certbot.display.util.CANCEL = 'cancel'

Display exit code for a user canceling the display.

certbot.display.util.notify(msg: str) → None

Display a basic status message.

Parameters:

msg (str) – message to display

certbot.display.util.notification(message: str, pause: bool = True, wrap: bool = True, force_interactive: bool = False, decorate: bool = True) → None

Displays a notification and waits for user acceptance.

Parameters:

• message (str) – Message to display

• pause (bool) – Whether or not the program should pause for the user’s confirmation

• wrap (bool) – Whether or not the application should wrap text

• force_interactive (bool) – True if it’s safe to prompt the user because it won’t cause any workflow regressions

• decorate (bool) – Whether to surround the message with a decorated frame

certbot.display.util.menu(message: str, choices: Union[List[str], List[Tuple[str, str]]], default: Optional[int] = None, cli_flag: Optional[str] = None, force_interactive: bool = False) → Tuple[str, int]

Display a menu.

Parameters:

• message (str) – title of menu

• choices (list of tuples (tag, item) or list of descriptions (tags will be enumerated)) – Menu lines, len must be > 0

• default – default value to return, if interaction is not possible

• cli_flag (str) – option used to set this value with the CLI

• force_interactive (bool) – True if it’s safe to prompt the user because it won’t cause any workflow regressions

Returns:

tuple of (code, index) where code - str display exit code index - int index of the user’s selection

Return type:

tuple

certbot.display.util.input_text(message: str, default: Optional[str] = None, cli_flag: Optional[str] = None, force_interactive: bool = False) → Tuple[str, str]

Accept input from the user.

Parameters:

• message (str) – message to display to the user

• default – default value to return, if interaction is not possible

• cli_flag (str) – option used to set this value with the CLI

• force_interactive (bool) – True if it’s safe to prompt the user because it won’t cause any workflow regressions

Returns:

tuple of (code, input) where code - str display exit code input - str of the user’s input

Return type:

tuple

certbot.display.util.yesno(message: str, yes_label: str = 'Yes', no_label: str = 'No', default: Optional[bool] = None, cli_flag: Optional[str] = None, force_interactive: bool = False) → bool

Query the user with a yes/no question.

Yes and No label must begin with different letters, and must contain at least one letter each.

Parameters:

• message (str) – question for the user

• yes_label (str) – Label of the “Yes” parameter

• no_label (str) – Label of the “No” parameter

• default – default value to return, if interaction is not possible

• cli_flag (str) – option used to set this value with the CLI

• force_interactive (bool) – True if it’s safe to prompt the user because it won’t cause any workflow regressions

Returns:

True for “Yes”, False for “No”

Return type:

bool

certbot.display.util.checklist(message: str, tags: List[str], default: Optional[List[str]] = None, cli_flag: Optional[str] = None, force_interactive: bool = False) → Tuple[str, List[str]]

Display a checklist.

Parameters:

• message (str) – Message to display to user

• tags (list) – str tags to select, len(tags) > 0

• default – default value to return, if interaction is not possible

• cli_flag (str) – option used to set this value with the CLI

• force_interactive (bool) – True if it’s safe to prompt the user because it won’t cause any workflow regressions

Returns:

tuple of (code, tags) where code - str display exit code tags - list of selected tags

Return type:

tuple

certbot.display.util.directory_select(message: str, default: Optional[str] = None, cli_flag: Optional[str] = None, force_interactive: bool = False) → Tuple[str, str]

Display a directory selection screen.

Parameters:

• message (str) – prompt to give the user

• default – default value to return, if interaction is not possible

• cli_flag (str) – option used to set this value with the CLI

• force_interactive (bool) – True if it’s safe to prompt the user because it won’t cause any workflow regressions

Returns:

tuple of the form (code, string) where code - display exit code string - input entered by the user

certbot.display.util.assert_valid_call(prompt: str, default: str, cli_flag: str, force_interactive: bool) → None

Verify that provided arguments is a valid display call.

Parameters:

• prompt (str) – prompt for the user

• default – default answer to prompt

• cli_flag (str) – command line option for setting an answer to this question

• force_interactive (bool) – if interactivity is forced