import arcpy p2s = '-- For more info click <!!HTML_LINK!!> --' arcpy.AddMessage(p2s)
import subprocess subprocess.Popen('"C:\\Program Files\\Internet Explorer\\iexplore.exe" http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/000001_Angle_should_be_greater_than_0_and_less_than_180/00vp00000002000001/')