model_script.py

def createScript():
    import os
    tbx_path = r"D:\sfe\MOTOROLA.tbx"
    tbx_alias = "MOTOROLA"
    modelname = "Model1-frequency"
    outputLocation = r"D:\sfe\MOTOROLA\PYTHONS"

    outScript = open(os.path.join(outputLocation, "outScript.py"), "w")

    outScript.write("import arcpy\n")
    outScript.write('arcpy.ImportToolbox(r"' + tbx_path + '")\n')
    outScript.write('print "toolbox imported successfully"\n')
    outScript.write("arcpy." + modelname + "_" + tbx_alias + "()\n")
    outScript.write('print "model completed successfully"\n')
    outScript.close()

if __name__ == '__main__':
    createScript()