import arcpy
# Set workspace
arcpy.env.workspace = "D:/pro-restaura/ProRestaura-dados/outout-mg/reproject-mg"

# Set local variables
in_features = (arcpy.Raster, "area_pro_restaura_minas.tif")
out_feature_class = "D:/pro-restaura/ProRestaura-dados/outout-mg/reproject-mg/class_UpVeg.tif"
where_clause = "Value" = 2103

# Execute Select
arcpy.Select_analysis(in_features, out_feature_class, where_clause)