File list (Check if you may need any files):
Python_ArcGIS\exercises
.............\.........\completed
.............\.........\.........\exercise1_gp
.............\.........\.........\............\data
.............\.........\.........\............\....\Habitat_Analysis.gdb
.............\.........\.........\............\....\....................\a00000001.freelist
.............\.........\.........\............\....\....................\a00000001.gdbindexes
.............\.........\.........\............\....\....................\a00000001.gdbtable
.............\.........\.........\............\....\....................\a00000001.gdbtablx
.............\.........\.........\............\....\....................\a00000002.gdbtable
.............\.........\.........\............\....\....................\a00000002.gdbtablx
.............\.........\.........\............\....\....................\a00000003.gdbindexes
.............\.........\.........\............\....\....................\a00000003.gdbtable
.............\.........\.........\............\....\....................\a00000003.gdbtablx
.............\.........\.........\............\....\....................\a00000004.gdbtable
.............\.........\.........\............\....\....................\a00000004.gdbtablx
.............\.........\.........\............\....\....................\a00000005.gdbindexes
.............\.........\.........\............\....\....................\a00000005.gdbtable
.............\.........\.........\............\....\....................\a00000005.gdbtablx
.............\.........\.........\............\....\....................\a00000006.freelist
.............\.........\.........\............\....\....................\a00000006.gdbindexes
.............\.........\.........\............\....\....................\a00000006.gdbtable
.............\.........\.........\............\....\....................\a00000006.gdbtablx
.............\.........\.........\............\....\....................\a00000007.freelist
.............\.........\.........\............\....\....................\a00000007.gdbtable
.............\.........\.........\............\....\....................\a00000007.gdbtablx
.............\.........\.........\............\....\....................\a00000008.freelist
.............\.........\.........\............\....\....................\a00000008.gdbtable
.............\.........\.........\............\....\....................\a00000008.gdbtablx
.............\.........\.........\............\....\....................\a00000017.gdbtable
.............\.........\.........\............\....\....................\a00000017.gdbtablx
.............\.........\.........\............\....\....................\a00000018.gdbindexes
.............\.........\.........\............\....\....................\a00000018.gdbtable
.............\.........\.........\............\....\....................\a00000018.gdbtablx
.............\.........\.........\............\....\....................\a0000001c.freelist
.............\.........\.........\............\....\....................\a0000001c.gdbindexes
.............\.........\.........\............\....\....................\a0000001c.gdbtable
.............\.........\.........\............\....\....................\a0000001c.gdbtablx
.............\.........\.........\............\....\....................\a00000022.freelist
.............\.........\.........\............\....\....................\a00000022.gdbindexes
.............\.........\.........\............\....\....................\a00000022.gdbtable
.............\.........\.........\............\....\....................\a00000022.gdbtablx
.............\.........\.........\............\....\....................\a00000024.gdbindexes
.............\.........\.........\............\....\....................\a00000024.gdbtable
.............\.........\.........\............\....\....................\a00000024.gdbtablx
.............\.........\.........\............\....\....................\a00000025.freelist
.............\.........\.........\............\....\....................\a0000