Optimizing script with in_memory selection

I had a problem solved here.

I had 2 features: polygons and points, both containing similar attributes(example: street name, number). Each polygon must have equivalent point added(same street name, same number), and I had to detect which polygons didn't have a point feature(or if they had one and the values are different, because of typos and such). The problem was solved by doing a spacial join and then filtering the ones with different values.

My new problem is that I need to run the script on an selection of features. Here you can find something that i plan to use. As I see it , before I run arcpy.MakeFeatureLayer_management I should use the arcpy.CopyFeatures_management feature, with arcpy.env.workspace = "in_memory" defined.

But what should I grab for the "selected_features" ? In that code, that does "pipes" define? Were does "in_memory" kick in?

import arcpy arcpy.env.overwriteOutput = True

from arcpy import env

arcpy.env.workspace = "in_memory"

*make 'in memory' selection from featurelayer arcpy.CopyFeatures_management (in_feat, out_feat)

selected_features = "D:/ALTE PROIECTE/script/cladiri adrese/Adrese_Output.shp"

sel_adrese = "D:/ALTE PROIECTE/script/cladiri adrese/selectadrese.shp"

arcpy.CopyFeatures_management ("D:/ALTE PROIECTE/script/cladiriadrese/Adrese_Output.shp", sel_adrese)

selected_features = "D:/ALTE PROIECTE/script/cladiri adrese/cladiri_Output.shp"

sel_poligon = "D:/ALTE PROIECTE/script/cladiri adrese/selectpoligon.shp"

arcpy.CopyFeatures_management ("D:/ALTEPROIECTE/script/cladiriadrese/cladiri_Output.shp", sel_poligon)

*Make Feature Layers from memory selection

arcpy.MakeFeatureLayer_management(sel_adrese, "lyr_Adresa")

arcpy.MakeFeatureLayer_management(sel_poligon, "lyr_Poligon")

*Do a spatial join

inputFC = "lyr_Poligon" joinFC = "lyr_Adresa" outputFC = "D:/ALTE PROIECTE/script/cladiri adrese/JoinPoligonAdresa.shp"

arcpy.SpatialJoin_analysis(inputFC, joinFC, outputFC)

*Make a new Feature Layer that just contains the ones that need fixed

arcpy.MakeFeatureLayer_management("D:/ALTE PROIECTE/script/cladiriadrese/JoinPoligonAdresa.shp", "lyr_MySpatialJoinLayer", "(\"Strada\" <> \"DenumireAr\") >OR (\"Nr_postal\" <> \"Nr_Posta_1\")")

*Create a new shapefile (or FGDB) with just the polygons that need fixed

arcpy.CopyFeatures_management("lyr_MySpatialJoinLayer", "D:/ALTE PROIECTE/script/cladiriadrese/Erori.shp")

That code will do the spacialjoin, but not on the features I selected. what I am missing out? I am using arcgis 10.2