在气象领域,FTP是比较常用的一个数据来源。本文尝试采用python的ftplib包,实现了从指定ftp服务器中批量下载文件的功能。供大家学习参考。
https://docs.python.org/3/library/ftplib.html#module-ftplib 该网址为官方文档。
代码如下:
# -*- coding: utf-8 -*-
"""
Created on Fri Mar 1 11:05:38 2019
@author: BBR
"""
import ftplib
import os import datetime host = '172.18.16.30' username = 'ww' password = '' localpath=r"\\10.226.110.225\Climate_Share\10.226.110.225\climates\data\file\a" f = ftplib.FTP(host) f.login(username, password) nowstr=datetime.datetime.now() lastmonth=nowstr-datetime.timedelta(weeks=1) datestr=lastmonth.strftime('%Y%m') f.cwd('clim') pwd_path = f.pwd() stationids=['A54428','A54525','A54523','A54529','A54619','A54527',\ 'A54528','A54517','A54526','A54622','A54645','A54530','A54623'] stationnames=['蓟州','宝坻','武清','宁河','静海','西青',\ '北辰','市区','东丽','津南','大港','汉沽','塘沽'] def ftp_download(filename,stationname): file_remote = filename file_local = localpath+'\\'+filename bufsize = 1024 # 设置缓冲器大小 try: fp = open(file_local, 'wb') f.retrbinary('RETR %s' % file_remote, fp.write, bufsize) except: fp.close() os.remove(file_local) print(stationname+' 文件不存在!') fp.close() for id,idname in zip(stationids,stationnames): filename=id+'-'+datestr+'.TXT' ftp_download(filename,idname) f.quit()