Rename Shapekeys

import bpy

from mathutils import Vector, Matrix, Quaternion, Euler, Color

context = bpy.context

#start list with first item as 'Basis'
poseList = ['Basis']

#Get list of names from pose library
rig = bpy.data.objects.get("Face_Armature")
pl = rig.pose_library
i = 1
if pl != None:
    for item in pl.pose_markers:
        poseList.append(item.name)
        print("Pose " + poseList[i] + " appended to list successfully")
        i+=1

#prepare variables for next step
i = 0

#suffix for names
suffix = ""

#prefix for names
prefix = ""

#set prefix and suffix based on object's name
for dest in bpy.context.selected_objects:
    if "head" in dest.name:
        prefix = "bs00_eye."
        suffix = ""
    elif "brows" in dest.name:
        prefix = "bs02_mayuge."
        suffix = "_mu"
    elif "lashes" in dest.name:
        prefix = "bs01_matuge."
        suffix = "_m"
    elif "tongue" in dest.name:
        prefix = "bs07_sita."
        suffix = "_sita"
    elif "teeth" in dest.name:
        prefix = "bs06_ha."
        suffix = "_ha"
    elif "t1" in dest.name:
        prefix = "bs03_namida01."
        suffix = "_n01"
    elif "t2" in dest.name:
        prefix = "bs04_namida02."
        suffix = "_n02"
    #get shape keys
    sks = dest.data.shape_keys
    #get shape keys names
    skNames = sks.key_blocks
    #cycle through destination's shapekeys and rename based on all previous rules
    for sk in skNames:
        if sk.name != "Basis":
            sk.name = prefix + poseList[i] + suffix + "_0"
        i +=1
    i = 0