I am unable to import pyplot. How can the error be resolved? >>> from matplotlib import pyplot Jul 16 12:49:46 Python[35767] <Error>: Set a breakpoint at CGSLogError to catch errors as they are logged. Jul 16 12:49:46 Python[35767] <Error>: On-demand launch of the Window Server is allowed for root user only. Jul 16 12:49:46 Python[35767] <Warning>: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (268435459) Jul 16 12:49:46 Python[35767] <Error>: On-demand launch of the Window Server is allowed for root user only. Jul 16 12:49:46 Python[35767] <Warning>: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (268435459) Jul 16 12:49:46 Python[35767] <Error>: This user is not allowed access to the window system right now. _RegisterApplication(), unable to get application ASN from launchservicesd, and this application requires an ASN, so aborting. error=#-1. Abort trap: 6 Continue reading...