Here is something I wrote that will build points along the line that you can then feed to the split by point tool.def points_along_line(line_lyr, pnt_layer, pnt_dist):
"""
line_lyr (feature layer) - Single part line
pnt_layer (feature layer) - Path to point feature class
pnt_dist (integer) - Interval distance in map units to add points
"""
search_cursor = arcpy.da.SearchCursor(line_lyr, 'SHAPE@')
insert_cursor = arcpy.da.InsertCursor(pnt_layer, 'SHAPE@')
for row in search_cursor:
for dist in range(0, int(row[0].length), pnt_dist):
point = row[0].positionAlongLine(dist).firstPoint
insert_cursor.insertRow([point])
It was setup to work on an existing point feature class. You could just as easily add a few lines to create it on the fly. if not arcpy.Exists(pnt_layer):
arcpy.CreateFeatureclass_management(
os.path.dirname(pnt_layer), os.path.basename(pnt_layer), 'POINT')
...
return pnt_layer
Then add the split line at point tool where you call the function.
points_along_line(line_features, point_features, pnt_dist)
arcpy.SplitLineAtPoint_management(line_features, point_features, out_feature_class)
