ChangeTools (Python)
Change evaluation functions and decorators.
Direct example:
>>> from pathlib import Path
>>> from functools import partial
>>> from changetools import ChangeEvaluator
>>> hello_path = Path('hello.txt')
>>> _ = hello_path.write_text('hello')
>>> change_evaluator = ChangeEvaluator(partial(hello_path.read_text))
>>> change_evaluator.changed
True
>>> change_evaluator.changed
False
>>> _ = hello_path.write_text('hi')
>>> change_evaluator.changed
True
>>> change_evaluator.changed
False
While example:
>>> hello_path = Path('hello.txt')
>>> change_evaluator.changed
KeyboardInterrupt
>>> _ = hello_path.write_text('hello')
>>> change_evaluator = ChangeEvaluator(partial(hello_path.read_text))
>>> while change_evaluator.changed:
... _ = hello_path.write_text('hi')
...
For example using cycle:
>>> hello_path = Path('hello.txt')
>>> change_evaluator = ChangeEvaluator(partial(hello_path.read_text))
>>> _ = hello_path.write_text('hello')
>>> for i in change_evaluator.cycle(10):
... print(i)
... _ = hello_path.write_text('hi')
...
0
1
