sourceMel.py

import maya.cmds as mc
import maya.mel  as mm
import glob,os.path,re
def sourceMelFolder(Path):
    drivenKeyFile = glob.glob(Path + "/*.mel")
    if isinstance(drivenKeyFile,list) == True:
        for keyFile in drivenKeyFile:
            keyFile = re.sub('\','/',keyFile)
            print ('sourceFile->'+keyFile)
            mm.eval('source "' + keyFile +  '";')
    elif isinstance(drivenKeyFile,str) == True:
        mm.eval('source "' + folderPath + '";')
        print ('sourceFile->'+keyFile)
    else:
        print "file does not exists."
def sourceMel(Path):
    if isinstance(Path,str):
        mm.eval('source "' + Path + '";')
        print ('sourceFile->'+Path)
    elif isinstance(Path,list):
        for mel in Path:
            mm.eval('source "' + mel + '";')
            print ('sourceFile->' + mel)