Package paramiko :: Class SFTPClient |
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# Class SFTPClient

source code

    object --+
             |
      BaseSFTP --+
                 |
                SFTPClient

Known Subclasses:
  - SFTP

SFTP client object. `SFTPClient` is used to open an sftp session across an open ssh Transport and do remote file operations.

Instance Methods
__init__(self, sock) Create an SFTP client from an existing Channel. | source code
chdir(self, path) Change the "current directory" of this SFTP session. | source code
chmod(self, path, mode) Change the mode (permissions) of a file. | source code
chown(self, path, uid, gid) Change the owner (`uid`) and group (`gid`) of a file. | source code
close(self) Close the SFTP session and its underlying channel. | source code
SFTPFile |
file(self, filename, mode=`'``r``'`, bufsize=-1) Open a file on the remote server. | source code
get(self, remotepath, localpath, callback=None) Copy a remote file (`remotepath`) from the SFTP server to the local host as `localpath`. | source code
Channel |
get_channel(self) Return the underlying Channel object for this SFTP session. | source code
str |
getcwd(self) Return the "current working directory" for this SFTP session, as emulated by paramiko. | source code
list of str |
listdir(self, path=`'``.``'`) Return a list containing the names of the entries in the given `path`. | source code
list of SFTPAttributes |
listdir_attr(self, path=`'``.``'`) Return a list containing SFTPAttributes objects corresponding to files in the given `path`. | source code
SFTPAttributes |
lstat(self, path) Retrieve information about a file on the remote system, without following symbolic links (shortcuts). | source code
mkdir(self, path, mode=511) Create a folder (directory) named `path` with numeric mode `mode`. | source code
str |
normalize(self, path) Return the normalized path (on the server) of a given path. | source code
SFTPFile |
open(self, filename, mode=`'``r``'`, bufsize=-1) Open a file on the remote server. | source code
SFTPAttributes |
put(self, localpath, remotepath, callback=None) Copy a local file (`localpath`) to the SFTP server as `remotepath`. | source code
str |
readlink(self, path) Return the target of a symbolic link (shortcut). | source code
remove(self, path) Remove the file at the given path. | source code
rename(self, oldpath, newpath) Rename a file or folder from `oldpath` to `newpath`. | source code
rmdir(self, path) Remove the folder named `path`. | source code
SFTPAttributes |
stat(self, path) Retrieve information about a file on the remote system. | source code
symlink(self, source, dest) Create a symbolic link (shortcut) of the `source` path at `destination`. | source code
truncate(self, path, size) Change the size of the file specified by `path`. | source code
unlink(self, path) Remove the file at the given path. | source code
utime(self, path, times) Set the access and modified times of the file specified by `path`. | source code
Inherited from `object`: `__delattr__`, `__format__`, `__getattribute__`, `__hash__`, `__new__`, `__reduce__`, `__reduce_ex__`, `__repr__`, `__setattr__`, `__sizeof__`, `__str__`, `__subclasshook__`

Class Methods
SFTPClient |
from_transport(cls, t) Create an SFTP client channel from an open Transport. | source code

Properties
Inherited from `object`: `__class__`

Method Details

### __init__(self, sock) (Constructor) | source code
Create an SFTP client from an existing Channel. The channel should already have requested the `"sftp"` subsystem. An alternate way to create an SFTP client context is by using from_transport. Parameters: `sock` (Channel) - an open Channel using the `"sftp"` subsystem Raises: `SSHException` - if there's an exception while negotiating sftp Overrides: object.__init__

### chdir(self, path) | source code
Change the "current directory" of this SFTP session. Since SFTP doesn't really have the concept of a current working directory, this is emulated by paramiko. Once you use this method to set a working directory, all operations on this SFTPClient object will be relative to that path. Parameters: `path` (str) - new current working directory Raises: `IOError` - if the requested path doesn't exist on the server Since: 1.4

### chmod(self, path, mode) | source code
Change the mode (permissions) of a file. The permissions are unix-style and identical to those used by python's `os.chmod` function. Parameters: `path` (str) - path of the file to change the permissions of `mode` (int) - new permissions

### chown(self, path, uid, gid) | source code
Change the owner (`uid`) and group (`gid`) of a file. As with python's `os.chown` function, you must pass both arguments, so if you only want to change one, use stat first to retrieve the current owner and group. Parameters: `path` (str) - path of the file to change the owner and group of `uid` (int) - new owner's uid `gid` (int) - new group id

### close(self) | source code
Close the SFTP session and its underlying channel. Since: 1.4

### file(self, filename, mode=`'``r``'`, bufsize=-1) | source code
Open a file on the remote server. The arguments are the same as for python's built-in `file` (aka `open`). A file-like object is returned, which closely mimics the behavior of a normal python file object. The mode indicates how the file is to be opened: `'r'` for reading, `'w'` for writing (truncating an existing file), `'a'` for appending, `'r+'` for reading/writing, `'w+'` for reading/writing (truncating an existing file), `'a+'` for reading/appending. The python `'b'` flag is ignored, since SSH treats all files as binary. The `'U'` flag is supported in a compatible way. Since 1.5.2, an `'x'` flag indicates that the operation should only succeed if the file was created and did not previously exist. This has no direct mapping to python's file flags, but is commonly known as the `O_EXCL` flag in posix. The file will be buffered in standard python style by default, but can be altered with the `bufsize` parameter. `0` turns off buffering, `1` uses line buffering, and any number greater than 1 (`>1`) uses that specific buffer size. Parameters: `filename` (str) - name of the file to open `mode` (str) - mode (python-style) to open in `bufsize` (int) - desired buffering (-1 = default buffer size) Returns: SFTPFile a file object representing the open file Raises: `IOError` - if the file could not be opened.

### from_transport(cls, t) Class Method | source code
Create an SFTP client channel from an open Transport. Parameters: `t` (Transport) - an open Transport which is already authenticated Returns: SFTPClient a new SFTPClient object, referring to an sftp session (channel) across the transport

### get(self, remotepath, localpath, callback=None) | source code
Copy a remote file (`remotepath`) from the SFTP server to the local host as `localpath`. Any exception raised by operations will be passed through. This method is primarily provided as a convenience. Parameters: `remotepath` (str) - the remote file to copy `localpath` (str) - the destination path on the local host `callback` (function(int, int)) - optional callback function that accepts the bytes transferred so far and the total bytes to be transferred (since 1.7.4) Since: 1.4

### get_channel(self) | source code
Return the underlying Channel object for this SFTP session. This might be useful for doing things like setting a timeout on the channel. Returns: Channel the SSH channel Since: 1.7.1

### getcwd(self) | source code
Return the "current working directory" for this SFTP session, as emulated by paramiko. If no directory has been set with chdir, this method will return `None`. Returns: str the current working directory on the server, or `None` Since: 1.4

### listdir(self, path=`'``.``'`) | source code
Return a list containing the names of the entries in the given `path`. The list is in arbitrary order. It does not include the special entries `'.'` and `'..'` even if they are present in the folder. This method is meant to mirror `os.listdir` as closely as possible. For a list of full SFTPAttributes objects, see listdir_attr. Parameters: `path` (str) - path to list (defaults to `'.'`) Returns: list of str list of filenames

### listdir_attr(self, path=`'``.``'`) | source code
Return a list containing SFTPAttributes objects corresponding to files in the given `path`. The list is in arbitrary order. It does not include the special entries `'.'` and `'..'` even if they are present in the folder. The returned SFTPAttributes objects will each have an additional field: `longname`, which may contain a formatted string of the file's attributes, in unix format. The content of this string will probably depend on the SFTP server implementation. Parameters: `path` (str) - path to list (defaults to `'.'`) Returns: list of SFTPAttributes list of attributes Since: 1.2

### lstat(self, path) | source code
Retrieve information about a file on the remote system, without following symbolic links (shortcuts). This otherwise behaves exactly the same as stat. Parameters: `path` (str) - the filename to stat Returns: SFTPAttributes an object containing attributes about the given file

### mkdir(self, path, mode=511) | source code
Create a folder (directory) named `path` with numeric mode `mode`. The default mode is 0777 (octal). On some systems, mode is ignored. Where it is used, the current umask value is first masked out. Parameters: `path` (str) - name of the folder to create `mode` (int) - permissions (posix-style) for the newly-created folder

### normalize(self, path) | source code
Return the normalized path (on the server) of a given path. This can be used to quickly resolve symbolic links or determine what the server is considering to be the "current folder" (by passing `'.'` as `path`). Parameters: `path` (str) - path to be normalized Returns: str normalized form of the given path Raises: `IOError` - if the path can't be resolved on the server

### open(self, filename, mode=`'``r``'`, bufsize=-1) | source code
Open a file on the remote server. The arguments are the same as for python's built-in `file` (aka `open`). A file-like object is returned, which closely mimics the behavior of a normal python file object. The mode indicates how the file is to be opened: `'r'` for reading, `'w'` for writing (truncating an existing file), `'a'` for appending, `'r+'` for reading/writing, `'w+'` for reading/writing (truncating an existing file), `'a+'` for reading/appending. The python `'b'` flag is ignored, since SSH treats all files as binary. The `'U'` flag is supported in a compatible way. Since 1.5.2, an `'x'` flag indicates that the operation should only succeed if the file was created and did not previously exist. This has no direct mapping to python's file flags, but is commonly known as the `O_EXCL` flag in posix. The file will be buffered in standard python style by default, but can be altered with the `bufsize` parameter. `0` turns off buffering, `1` uses line buffering, and any number greater than 1 (`>1`) uses that specific buffer size. Parameters: `filename` (str) - name of the file to open `mode` (str) - mode (python-style) to open in `bufsize` (int) - desired buffering (-1 = default buffer size) Returns: SFTPFile a file object representing the open file Raises: `IOError` - if the file could not be opened.

### put(self, localpath, remotepath, callback=None) | source code
Copy a local file (`localpath`) to the SFTP server as `remotepath`. Any exception raised by operations will be passed through. This method is primarily provided as a convenience. The SFTP operations use pipelining for speed. Parameters: `localpath` (str) - the local file to copy `remotepath` (str) - the destination path on the SFTP server `callback` (function(int, int)) - optional callback function that accepts the bytes transferred so far and the total bytes to be transferred (since 1.7.4) Returns: SFTPAttributes an object containing attributes about the given file (since 1.7.4) Since: 1.4

### readlink(self, path) | source code
Return the target of a symbolic link (shortcut). You can use symlink to create these. The result may be either an absolute or relative pathname. Parameters: `path` (str) - path of the symbolic link file Returns: str target path

### remove(self, path) | source code
Remove the file at the given path. This only works on files; for removing folders (directories), use rmdir. Parameters: `path` (str) - path (absolute or relative) of the file to remove Raises: `IOError` - if the path refers to a folder (directory)

### rename(self, oldpath, newpath) | source code
Rename a file or folder from `oldpath` to `newpath`. Parameters: `oldpath` (str) - existing name of the file or folder `newpath` (str) - new name for the file or folder Raises: `IOError` - if `newpath` is a folder, or something else goes wrong

### rmdir(self, path) | source code
Remove the folder named `path`. Parameters: `path` (str) - name of the folder to remove

### stat(self, path) | source code
Retrieve information about a file on the remote system. The return value is an object whose attributes correspond to the attributes of python's `stat` structure as returned by `os.stat`, except that it contains fewer fields. An SFTP server may return as much or as little info as it wants, so the results may vary from server to server. Unlike a python `stat` object, the result may not be accessed as a tuple. This is mostly due to the author's slack factor. The fields supported are: `st_mode`, `st_size`, `st_uid`, `st_gid`, `st_atime`, and `st_mtime`. Parameters: `path` (str) - the filename to stat Returns: SFTPAttributes an object containing attributes about the given file

### symlink(self, source, dest) | source code
Create a symbolic link (shortcut) of the `source` path at `destination`. Parameters: `source` (str) - path of the original file `dest` (str) - path of the newly created symlink

### truncate(self, path, size) | source code
Change the size of the file specified by `path`. This usually extends or shrinks the size of the file, just like the `truncate()` method on python file objects. Parameters: `path` (str) - path of the file to modify `size` (int or long) - the new size of the file

### unlink(self, path) | source code
Remove the file at the given path. This only works on files; for removing folders (directories), use rmdir. Parameters: `path` (str) - path (absolute or relative) of the file to remove Raises: `IOError` - if the path refers to a folder (directory)

### utime(self, path, times) | source code
Set the access and modified times of the file specified by `path`. If `times` is `None`, then the file's access and modified times are set to the current time. Otherwise, `times` must be a 2-tuple of numbers, of the form `(atime, mtime)`, which is used to set the access and modified times, respectively. This bizarre API is mimicked from python for the sake of consistency -- I apologize. Parameters: `path` (str) - path of the file to modify `times` (tuple(int)) - `None` or a tuple of (access time, modified time) in standard internet epoch time (seconds since 01 January 1970 GMT)