业务需求，频繁传递图片到对方ftp服务器，用此代码可流式上传文件。
上传代码
1 # coding:utf-8 2 import ftplib 3 import logging 4 import traceback 5 6 def ftpLogin(): 7 lasterr = None 8 for i in range(3): 9 try: 10 ftp = ftplib.FTP() 11 ftp.connect( 12 host='xx.xx.xx.xx', 13 port=21, 14 timeout=3 15 ) 16 ftp.login( 17 user='xxx', 18 passwd='xxx' 19 ) 20 return ftp 21 except Exception: 22 lasterr = traceback.format_exc() 23 print 'error except when ftp connect, err: %s' % lasterr) 24 return None 25 26 def ftpCwd(ftp=None, path='/'): 27 try: 28 ftp.cwd(path) 29 return True 30 except Exception: 31 try: 32 ftp.mkd(path) 33 ftp.cwd(path) 34 return True 35 except ftplib.error_perm: 36 print 'error except when ftp cwd, err: %s' % traceback.format_exc() 37 return False 38 39 def ftpUpfile(ftp=None, srcpath=None, dstfile=None): 40 bufsize = 1024 41 try: 42 with open(srcpath, 'rb') as fp: 43 cmd = 'STOR ' + dstfile 44 ftp.storbinary(cmd, fp, bufsize) 45 ftp.close() 46 return True 47 except Exception: 48 print 'error except when ftp put file,err: %s' % traceback.format_exc() 49 return False 50 51 if __name__ == '__main__': 52 file = 'a.txt' 53 ftp = ftpLogin() 54 ftp.set_debuglevel(2) 55 ftp.set_pasv(0) 56 if ftp is not None: 57 cwd = ftpCwd(ftp=ftp, path='aa') 58 if cwd: 59 ret = ftpUpfile(ftp=ftp, srcpath=file, dstfile=file) 60 if ret: 61 logging.info('put file success') 62 ftp.close()
ftp debug内容：
*cmd* 'CWD aa' *put* 'CWD aa ' *get* '250 Directory successfully changed. ' *resp* '250 Directory successfully changed.' *cmd* 'TYPE I' *put* 'TYPE I ' *get* '200 Switching to Binary mode. ' *resp* '200 Switching to Binary mode.' *cmd* 'PORT 10,10,4,48,237,115' *put* 'PORT 10,10,4,48,237,115 ' *get* '200 PORT command successful. Consider using PASV. ' *resp* '200 PORT command successful. Consider using PASV.' *cmd* 'STOR 1535340773614_xe4xb8xb9xe4xb8x9c_ _0_0_xe6x89x93xe7x94xb5xe8xafx9d_02_xe9x84x82AW0613_1_SM_000006_1_1_ _ .jpg' *put* 'STOR 1535340773614_xe4xb8xb9xe4xb8x9c_ _0_0_xe6x89x93xe7x94xb5xe8xafx9d_02_xe9x84x82AW0613_1_SM_000006_1_1_ _ .jpg ' *get* '150 Ok to send data. ' *resp* '150 Ok to send data.' *get* '226 Transfer complete. ' *resp* '226 Transfer complete.'
但是出现了一个很奇怪的现象：
中文目录上传带特殊字符的中文图片，代码报错但图片却上传了ftp服务器，很诡异。
# python 日志 2018-09-06 17:49:05,794 pushProcess.py[line:76] ERROR error except when ftp put file,err: Traceback (most recent call last): File "/home/seemmo/tongliao_push/seemmo/business/pushProcess.py", line 72, in ftpUpfile ftp.storbinary(cmd, fp, bufsize) File "/home/seemmo/share/python/python-2.6/Lib/ftplib.py", line 452, in storbinary conn = self.transfercmd(cmd) File "/home/seemmo/share/python/python-2.6/Lib/ftplib.py", line 360, in transfercmd return self.ntransfercmd(cmd, rest)[0] File "/home/seemmo/share/python/python-2.6/Lib/ftplib.py", line 344, in ntransfercmd resp = self.sendcmd(cmd) File "/home/seemmo/share/python/python-2.6/Lib/ftplib.py", line 243, in sendcmd return self.getresp() File "/home/seemmo/share/python/python-2.6/Lib/ftplib.py", line 218, in getresp raise error_perm, resp error_perm: 550 1536225485000_大广高速623KM+600M 由东å‘西_ _0_0_未系安全带_02_è¾½ALN838_1_SM_000006_1_2_ _ .jpg: Cannot create file. # ftp debug *cmd* 'CWD xe6x89x93xe7x94xb5xe8xafx9d' *put* 'CWD xe6x89x93xe7x94xb5xe8xafx9d ' *get* '250 Directory changed to /xe6x89x93xe7x94xb5xe8xafx9d\ ' *resp* '250 Directory changed to /xe6x89x93xe7x94xb5xe8xafx9d\' *cmd* 'TYPE I' *put* 'TYPE I ' *get* '200 Type set to I. ' *resp* '200 Type set to I.' *cmd* 'PORT 10,102,167,241,161,167' *put* 'PORT 10,102,167,241,161,167 ' *get* '200 PORT Command successful. ' *resp* '200 PORT Command successful.' *cmd* 'STOR 1536225052000_G45xe9xabx98xe9x80x9f479KM 100Mxe7x94xb1xe4xb8x9cxe5x90x91xe8xa5xbf_ _0_0_xe6x89x93xe7x94xb5xe8xafx9d_02_xe8xbexbdA382KU_1_SM_000006_1_1_ _ .jpg' *put* 'STOR 1536225052000_G45xe9xabx98xe9x80x9f479KM 100Mxe7x94xb1xe4xb8x9cxe5x90x91xe8xa5xbf_ _0_0_xe6x89x93xe7x94xb5xe8xafx9d_02_xe8xbexbdA382KU_1_SM_000006_1_1_ _ .jpg ' *get* '550 1536225052000_G45xe9xabx98xe9x80x9f479KM 100Mxe7x94xb1xe4xb8x9cxe5x90x91xe8xa5xbf_ _0_0_xe6x89x93xe7x94xb5xe8xafx9d_02_xe8xbexbdA382KU_1_SM_000006_1_1_ _ .jpg: Cannot create file. ' *resp* '550 1536225052000_G45xe9xabx98xe9x80x9f479KM 100Mxe7x94xb1xe4xb8x9cxe5x90x91xe8xa5xbf_ _0_0_xe6x89x93xe7x94xb5xe8xafx9d_02_xe8xbexbdA382KU_1_SM_000006_1_1_ _ .jpg: Cannot create file.'