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sftpserver is a simple single-threaded SFTP server based on
Paramiko's SFTPServer.
I needed a simple server that could be used as a stub for testing Python SFTP clients so I whipped out one.
Using pip::
$ [sudo] pip install sftpserver
::
$ sftpserver
Usage: sftpserver [options]
-k/--keyfile should be specified
Options:
-h, --help show this help message and exit
--host=HOST listen on HOST [default: localhost]
-p PORT, --port=PORT listen on PORT [default: 3373]
-l LEVEL, --level=LEVEL
Debug level: WARNING, INFO, DEBUG [default: INFO]
-k FILE, --keyfile=FILE
Path to private key, for example /tmp/test_rsa.key
$ sftpserver -k /tmp/test_rsa.key -l DEBUG
Generating a test private key::
$ openssl req -out CSR.csr -new -newkey rsa:2048 -nodes -keyout /tmp/test_rsa.key
Connecting with a Python client to our server:
import paramiko pkey = paramiko.RSAKey.from_private_key_file('/tmp/test_rsa.key') transport = paramiko.Transport(('localhost', 3373)) transport.connect(username='admin', password='admin', pkey=pkey) sftp = paramiko.SFTPClient.from_transport(transport) sftp.listdir('.') ['loop.py', 'stub_sftp.py']
FAQs
sftpserver - a simple single-threaded sftp server
We found that sftpserver demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

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OWASP’s 2025 Top 10 introduces Software Supply Chain Failures as a new category, reflecting rising concern over dependency and build system risks.

Research
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