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"""A simple spinner module"""
import itertools
import sys
import threading
import time
class Spinner:
"""A simple spinner class"""
def __init__(self, message: str = "Loading...", delay: float = 0.1) -> None:
"""Initialize the spinner class
Args:
message (str): The message to display.
delay (float): The delay between each spinner update.
"""
self.spinner = itertools.cycle(["-", "/", "|", "\\"])
self.delay = delay
self.message = message
self.running = False
self.spinner_thread = None
def spin(self) -> None:
"""Spin the spinner"""
while self.running:
sys.stdout.write(f"{next(self.spinner)} {self.message}\r")
sys.stdout.flush()
time.sleep(self.delay)
sys.stdout.write(f"\r{' ' * (len(self.message) + 2)}\r")
def __enter__(self):
"""Start the spinner"""
self.running = True
self.spinner_thread = threading.Thread(target=self.spin)
self.spinner_thread.start()
return self
def __exit__(self, exc_type, exc_value, exc_traceback) -> None:
"""Stop the spinner
Args:
exc_type (Exception): The exception type.
exc_value (Exception): The exception value.
exc_traceback (Exception): The exception traceback.
"""
self.running = False
if self.spinner_thread is not None:
self.spinner_thread.join()
sys.stdout.write(f"\r{' ' * (len(self.message) + 2)}\r")
sys.stdout.flush()
def update_message(self, new_message, delay=0.1):
"""Update the spinner message
Args:
new_message (str): New message to display
delay: Delay in seconds before updating the message
"""
time.sleep(delay)
sys.stdout.write(
f"\r{' ' * (len(self.message) + 2)}\r"
) # Clear the current message
sys.stdout.flush()
self.message = new_message
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