If you prefer not to see PyCharm's code inspections, I would suggest creating a new inspections profile that does no inspections. To do that, go to the Code -> Configure Current File Analysis dialog like you have been, but this time click on the Configure inspections
link. At the top, click the "Manage" dropdown and copy the current profile into a new profile which you'll name "No inspections". Then uncheck everything, save the new inspections profile, and you'll be done. All new .py files should now be created under your "No inspections" profile.
Note that as far as I can tell, the inspection settings get saved per-project, rather than as a global setting. But changing the inspection profile once per project shouldn't be too much of a hassle.