Generate end points from a layer that contains multiple lines

Question

I generate a layer file that has multiple parallel lines, that I want is to sequentially (from OBJECTID(1) to OBJECTID(Max)) create a point at each end point of the line segments and number these points. The other problem is alternating which side it starts creating a point from...

Say I have 2 lines parallel to each other going left to right and one is above the other. The first line would have a point at the left-end point labeled 1, the right-end point labeled 2. The next line would have the right end-point labeled 3, and the left end-point labeled 4 and so on.

Answer 1

import arcpy, os 

infc = sys.argv[1] # make sure this is a proper path 
outfc = sys.argv[2] # make sure this is a proper path 

# split the output into a folder and file name 
OutPath = os.path.dirname(outfc) 
OutName = os.path.basename(outfc) 
NameOfFile,ext = os.path.splitext(OutName) # separate file name from extension (if any) 
NameOfFile = NameOfFile + ".shp" # include shape file extension 
OutFC_Clean = OutPath + "\\" + NameOfFile # clean full path to output 

# Get the spatial reference from the input feature class 
desc = arcpy.Describe(infc) 
SR = desc.spatialReference 

n = 1 
arcpy.CreateFeatureclass_management(OutPath,NameOfFile,"POINT",spatial_reference = SR) 
arcpy.AddField_management(OutFC_Clean,"Waypoint","LONG") 

# Enter for loop for each feature 
# 
with arcpy.da.SearchCursor(infc, ["OID@", "SHAPE@", "alternate"]) as sCur:
    with arcpy.da.InsertCursor(OutFC_Clean,["SHAPE@","Waypoint"]) as iCur:
        for row in sCur:
            if row[2] == "False":
                #insert the feature
                iCur.insertRow((row[1].firstPoint,n)) 
                n = n + 1 
                iCur.insertRow((row[1].lastPoint,n)) 
                n = n + 1 
            else: 
                iCur.insertRow((row[1].lastPoint,n)) 
                n = n + 1 
                iCur.insertRow((row[1].firstPoint,n)) 
                n = n + 1