"""Create an rotate cursor .
:Date: |today|
:Author: Zlin526F
"""
import sys
import time
import threading
__author__ = "Zlin526F"
__copyright__ = "Copyright 2021, Lab"
__credits__ = ["Zlin526F"]
__email__ = "Zlin526F@github"
[docs]
class spinner:
busy = False
delay = 0.1
@staticmethod
def spinning_cursor():
while 1:
for cursor in "|/-\\":
yield cursor
[docs]
def __init__(self, delay=None):
self.spinner_generator = self.spinning_cursor()
if delay and float(delay):
self.delay = delay
def spinner_task(self):
while self.busy:
sys.stdout.write(next(self.spinner_generator))
sys.stdout.flush()
time.sleep(self.delay)
sys.stdout.write("\b") # \b = backspace
sys.stdout.flush()
def __enter__(self):
self.busy = True
threading.Thread(target=self.spinner_task).start()
def __exit__(self, exception, value, tb):
self.busy = False
time.sleep(self.delay)
if exception is not None:
return False