================ - raise `ValueError` if `monitor` is set to `True` and `psutils` is not installed
2.9.7
================ - requirements.txt for `psutil`, now supports `pip install pyprind -r requirements.txt`
2.9.5
================ - new `update_interval` parameter to control the update frequency in seconds - new `force_flush` parameter to print the progress after every iteration
2.9.4
================ - new time formatting in hh:mm:ss format (by Divyanshu Sharma, https://github.com/Div44) - permissive new BSD license
2.9.3
================ - some PEP8 adjustments and code cleanup - new `bar` argument for ProgressBar to use your favorite bar style (by Konstantin Tolstikhin)
2.9.2
================ - support for psutil >= 2.0 and < 2.0. - removed psutil from the setup requirements and made it's installation optional via "pip install pyprind -r requirements.txt"