PyMagicPrompt

A powerful one line solution for CLI user input with absolutely zero boilerplate.

Features

• Full lifecycle abstraction, by default looping until valid input

• Automatic terminal cleanup for subsequent prompts/answers

• Type inference & casting for answer submissions

• Customizable boolean conversion for common English words

• Built in common validators

• Support for custom validation functions

• Fully customizable prompt formatting & colors

• Customizable answer sanitization & formatting

• Obscured text for password inputs

• Options can be specified by both kwargs and options dict

By default, prompt() will work out of the box for most use cases with zero customization.

---

Example Usage

Basic prompt

name = prompt("What is your name")
# > What is your name: John
print(name)  # 'John'

Usage of built in validators

age = prompt("Enter your age", numOnly=True)
# > Enter your age: 25
print(age)  # 25 (int)

Custom validators

def validate_range(x): 
    return 1 <= int(x) <= 10

num = prompt("Enter number 1-10", validators=[validate_range])
# > Enter number 1-10: 5
print(num)  # 5 (int)

Common options for multiple inputs

base = {
    "alphaOnly": True,  # Only allow letters
    "capAnswer": True,  # Capitalize the answer
    "color": "green",  # Use green color for prompt
    "suffixStr": " >> ",  # Custom suffix
    "caratStr": "! ",  # Custom carat
}

firstName = prompt("First name", options=base)
# ! First Name >> john
print(f"First name: {firstName}")  # First name: John

lastName = prompt("Last name", options=base)
# ! Last Name >> smith
print(f"Last name: {lastName}")  # Last name: Smith

Custom boolean conversion

proceed = prompt("Continue?", trueStrs=["sure", "ok", "yes"])
# > Continue?: ok
print(proceed)  # True (bool)

---

Parameters

Parameter	Type	Default	Description
prompt	str	required	The prompt text to display to the user
options	PromptOptions | None	None	Dictionary of options that can override default parameters
loop	bool	True	Keep prompting until valid input is received
capPrompt	bool	True	Capitalize the first letter of the prompt
titlePrompt	bool	True	Convert prompt to title case
carat	bool	True	Add a carat prefix to the prompt
caratStr	str	"> "	String to use as carat
suffix	bool	True	Add a suffix to the prompt
suffixStr	str	": "	String to use as suffix
capAnswer	bool	False	Capitalize the first letter of string answers
titleAnswer	bool	False	Convert string answers to title case
alphaOnly	bool	False	Only accept alphabetic input
numOnly	bool	False	Only accept numeric input
alphaNumOnly	bool	False	Only accept alphanumeric input
floatOnly	bool	False	Only accept floating-point numbers
notEmpty	bool	True	Reject empty input
castAnswer	bool	True	Attempt to cast the answer to an appropriate type
color	str	""	Color name for the prompt (black, red, green, yellow, blue, magenta, cyan, white)
isPassword	bool	False	Mask input characters
clearAfterResponse	bool	False	Clear the prompt after receiving valid input
trueStrs	tuple[str, ...]	("true", "yes", "y")	Strings to interpret as True
falseStrs	tuple[str, ...]	("false", "no", "n")	Strings to interpret as False
pwFailMsg	str	"Invalid password"	Message to display on invalid password input
validators	list	[]	List of custom validation functions