import os
import arcpy

from os.path import join

# User entries on ArcGIS
out_cover = "C:Usersusercoverage"
in_lines = "C:Usersuserlines.shp"
in_points = "C:Usersuserpoints.shp"

# Unsplit the lines
fusionned_lines = join(arcpy.env.scratchGDB, "fusionned_lines")
arcpy.UnsplitLine_management(in_lines, fusionned_lines)

# Copy the feature
points = join(arcpy.env.scratchGDB, "points")
arcpy.CopyFeatures_management(in_points, points)

# List the feature classes to put in the coverage.
points_and_lines = [points, fusionned_lines]

# Create the coverage directory if needed.
if not arcpy.Exists(out_cover):
    os.makedirs(out_cover)

# Convert the feature class list into a coverage.
arcpy.FeatureclassToCoverage_conversion(points_and_lines, out_cover)

# The Delete_management of fusionned_lines and points is comparlsary, otherwise
# it is impossible to delete the scratch workspace.
arcpy.Delete_management(fusionned_lines)
arcpy.Delete_management(points)
# This delete does not work like I want :
arcpy.Delete_management(arcpy.env.scratchGDB)