将文件移动到指定目录下，并且加上时间戳进行重命名

def add_timastamp(self):
''' return timestamp mark'''
stamp = time.strftime("%Y%m%d%H%M%S",time.localtime())
return(stamp)

def rename_file(self,filename_without_timestamp):
'''add timestamp to filename'''
(file_without_suff,extention) = os.path.splitext(filename_without_timestamp)
stamp = self.add_timastamp()
file_add_timestamp = file_without_suff + stamp
file_with_timestamp =  file_add_timestamp + extention
# print filename_without_timestamp,file_with_timestamp
os.rename(filename_without_timestamp,file_with_timestamp)

def move_rename_file(self,filename):
'''move file to aimed path,then rename it by adding timestamp'''
filebak_path = os.path.join(PATH,"src_file","filebak")
if os.path.exists(filebak_path):
shutil.move(filename,filebak_path)
filename_without_path = os.path.split(filename)[1]#out.txt
filename_to_rename = os.path.join(filebak_path,filename_without_path)
self.rename_file(filename_to_rename)
else:
os.mkdir(filebak_path)
shutil.move(filename,filebak_path)
filename_without_path = os.path.split(filename)[0]
filename_to_rename = os.path.join(filebak_path,filename_without_path)
self.rename_file(filename_to_rename)