使用python实现正则匹配检索远端FTP目录下的文件

# coding=utf-8########################################################################## File Name: reg_url.py# Author: WangWeilong# Company: Baidu#########################################################################import reimport sysimport osfrom ftplib import FTPdhccmd = "http://xxx/api/submit"class DHC_FTP(): def __init__(self, hostname, username="", passwd=""):  self.hostname = hostname  try:   self.ftp = FTP(self.hostname)  except:   print "hostname error!"   exit(-1)  self.username = username  self.passwd = passwd  self.filelist = []  self.reg_pattern = "" def getftpfilelist(self, path):  self.ftp.login(self.username, self.passwd)  self.ftp.cwd(path)  self.filelist = self.ftp.nlst() def matchnames(self, regpattern):  pattern = re.compile(regpattern)  matchedfiles = []  for file in self.filelist:   match = pattern.search(file)   if match:    matchedfiles.append(match.string)  return matchedfilesif __name__ == "__main__": if len(sys.argv) != 4:  print 'usage:python reg_url.py $ftpurldir $regular' else:  #解析ftpurl字符串  head = sys.argv[1].split("@")[1].split("/")[0]  username = sys.argv[1].split("//")[1].split(":")[0]  passwd = sys.argv[1].split("//")[1].split(":")[1].split("@")[0]  pathdir = sys.argv[1].split(head)[1]  dhc_ftp = DHC_FTP(head, username, passwd)  dhc_ftp.getftpfilelist("./" + pathdir)  #获取正则表达式  regpattern = r'%s' % sys.argv[2]  matchedfiles = dhc_ftp.matchnames(regpattern)  for files in matchedfiles:   ftpname = sys.argv[1] + "/" + files   print ftpname