Question

我正在尝试使用python从FTP下载文件。我能够成功进入目录但无法下载该文件。

我使用的命令是ftp.retrbinary('master.idx', open(fname,'wb').write)

错误如下。看起来该命令正在寻找MASTER.IDX而不是master.idx

我要下载的文件的完整路径是ftp://ftp.sec.gov/edgar/full-index/2011/QTR2/master.idx

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/ftplib.py", line 406, in retrbinary
    conn = self.transfercmd(cmd, rest)
  File "/usr/lib/python2.7/ftplib.py", line 368, in transfercmd
    return self.ntransfercmd(cmd, rest)[0]
  File "/usr/lib/python2.7/ftplib.py", line 331, in ntransfercmd
    resp = self.sendcmd(cmd)
  File "/usr/lib/python2.7/ftplib.py", line 244, in sendcmd
    return self.getresp()
  File "/usr/lib/python2.7/ftplib.py", line 219, in getresp
    raise error_perm, resp
ftplib.error_perm: 500 MASTER.IDX not understood

Answer 1

我不能说为什么名称会变为大写。在任何情况下，当使用FTP时，我这样做，它可能会帮助你：

server = "URL.of.server"
directory = "directory/where/the/file/is"
filename = "nameoffile.txt"

from ftplib import FTP
ftp = FTP(server) #Set server address
ftp.login()  # Connect to server
ftp.cwd(directory) # Move to the desired folder in server
ftp.retrbinary('RETR ' + filename,open(filename, 'wb').write) # Download file from server
ftp.close() # Close connection

我认为它可能是'RETR'，如果你不写，服务器可能无法理解你想做什么

Answer 2

改用python的select date_format(event_time, 'yyyy-MM') as Month, sum(price) as Monthly_Revenue from oct_data_new group by date_format(event_time, 'yyyy-MM') order by Month;模块。这是一个示例片段

wget

Python FTP下载无法正常工作

2 个答案: