python 查找文件名包含指定字符串的方法

import os
class SearchFile(object):
 def __init__(self,path='.'):
 self._path=path
 self.abspath=os.path.abspath(self._path) # 默认当前目录
 def findfile(self,keyword,root):
 filelist=[]
 for root,dirs,files in os.walk(root):
  for name in files:  
  fitfile=filelist.append(os.path.join(root, name))
  #print(fitfile)
  print(os.path.join(root, name))
 #print(filelist)
 print('...........................................')
 for i in filelist:  
  if os.path.isfile(i):
  #print(i)
  if keyword in os.path.split(i)[1]:
   print('yes!',i) # 绝对路径
  #else:
   #print('......no keyword!')
 def __call__(self):
 while True:
  workpath=input('Do you want to work under the current folder? Y/N:')
  if(workpath == ''):
  break
  if workpath=='y' or workpath=='Y':
  root=self.abspath # 把当前工作目录作为工作目录
  print('当前工作目录：',root)
  dirlist=os.listdir() # 列出工作目录下的文件和目录
  print(dirlist)
  else:
  root=input('please enter the working directory:')
  print('当前工作目录：',root)
  keyword=input('the keyword you want to find:')
  if(keyword==''): 
  break
  self.findfile(keyword,root) # 查找带指定字符的文件
if __name__ == '__main__':
 search = SearchFile()
 search()