Paramiko get() raises IOError “No such file” if server doesn't support df -hi

问题

I'm running into a problem with paramiko where it gives me IOError: [Errno 2] No such file when I try to get a file off the remote server. Here's my code:

# set up a transport object t (using an rsa key), which connected successfully
>>> t.is_active()
True
>>> sftp = paramiko.SFTPClient.from_transport(t)
>>> files = sftp.listdir()  # files holds the list ['canceled', 'downloaded', 'FILE.06222012.TXT']
>>> sftp.get(files[2], '.')
IOError: [Errno 2] No such file

However, when I connect to sftp on the command line (as the same user I opened the python repl with) I can get the file. Any ideas?

EDIT: I found this post which seems like the issue I'm having https://bugs.launchpad.net/paramiko/+bug/492238 In the interactive sftp prompt:

sftp> df -hi
Server does not support statvfs@openssh.com extension

This bug is from 2009 and wasn't closed out (but I'm using the latest paramiko 1.7.7.1). Anyone know of a workaround? Can I force paramiko to just do the equivalent of plain sftp get, without trying to check file integrity?

回答1:

This might end up calling stat() at some point anyway, but you could try using STFPClient.open() which returns a SFTPFile instance. Then call its read() method to get the contents of the file. So, something like this:

sftp = paramiko.SFTPClient.from_transport(t)
files = sftp.listdir()  # files holds the list ['canceled', 'downloaded', 'FILE.06222012.TXT']
remote_file = sftp.open(files[2])
with open(files[2], 'w') as local_file:
    local_file.write(remote_file.read())
remote_file.close()

回答2:

I had the same issues, however, I did not run into problems because of sftp and df. Make sure to give a proper filename for localpath!

sftp.get(files[2],'file2.txt')

来源：https://stackoverflow.com/questions/11198364/paramiko-get-raises-ioerror-no-such-file-if-server-doesnt-support-df-hi

标签

python

sftp

paramiko