Metadata-Version: 2.1
Name: tcp-latency
Version: 0.0.10
Summary: Measure latency using TCP.
Home-page: https://github.com/dgzlopes/tcp-latency
Author: Daniel Gonzalez Lopes
Author-email: danielgonzalezlopes@gmail.com
License: MIT
Description: # tcp-latency
        [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/tcp-latency.svg)](https://pypi.org/project/tcp-latency/)
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        ## About
        `tcp-latency` provides an easy way to measure latency using TCP.
        
        Inspired by other [similar tools](#similar-tools), `tcp-latency` comes from the need of running network diagnosis/troubleshooting tasks with Python on serverless infrastructure (as many providers don't include ping/ICMP support) but should work too in any other environment with Python>=36.
        ## Features
        - Runs as a command-line tool or inside your code as a module.
        - Custom parameters for a port, runs, timeout and wait time between runs.
        - IPv4 (e.g 52.26.14.11) and domain (e.g google.com) host support.
        - Human readable output when running as a command-line tool.
        - No external dependencies.
        - Small and extensible.
        ## Usage
        `tcp-latency` can be used both as a module and as a standalone script.
        
        ### Module
        ```
        >>> from tcp_latency import measure_latency
        >>> measure_latency(host='google.com')
        [34.57]
        >>> measure_latency(host='52.26.14.11', port=80, runs=10, timeout=2.5)
        [433.82, 409.21, 409.25, 307.09, 306.64, 409.45, 306.58, 306.93, 409.25, 409.26]
        ```
        Note: If omitted, `measure_latency()` arguments use the same defaults that command-line mode.
        ### Command-line
        ```
        $ tcplatency -h
        usage: tcp-latency [-h] [-p [p]] [-t [t]] [-r [r]] [-w [w]] h
        
        Measure latency using TCP.
        
        positional arguments:
          host
        
        optional arguments:
          -h, --help            show this help message and exit
          -p [p], --port [p]    (default: 443)
          -t [t], --timeout [t]
                                (seconds, float, default: 5)
          -r [r], --runs [r]    number of latency points (int, default: 5)
          -w [w], --wait [w]    between each run (seconds, float, default: 1)
        ```
        ```
        $ tcp-latency google.com
        tcp-latency google.com
        google.com: tcp seq=0 port=443 timeout=5 time=15.16 ms
        google.com: tcp seq=1 port=443 timeout=5 time=15.63 ms
        google.com: tcp seq=2 port=443 timeout=5 time=14.86 ms
        google.com: tcp seq=3 port=443 timeout=5 time=14.76 ms
        google.com: tcp seq=4 port=443 timeout=5 time=14.59 ms
        --- google.com tcp-latency statistics ---
        5 packets transmitted
        rtt min/avg/max = 14.76/15.1025/15.63 ms
        
        $ tcp-latency 52.26.14.11 --port 80 --runs 3 --wait 0.5
        tcp-latency 52.26.14.11
        52.26.14.11: tcp seq=0 port=80 timeout=5 time=230.2 ms
        52.26.14.11: tcp seq=1 port=80 timeout=5 time=228.96 ms
        52.26.14.11: tcp seq=2 port=80 timeout=5 time=224.51 ms
        --- 52.26.14.11 tcp-latency statistics ---
        3 packets transmitted
        rtt min/avg/max = 228.96/229.57999999999998/230.2 ms
        
        $ tcp-latency google.com -r 1
        tcp-latency google.com
        google.com: tcp seq=0 port=443 timeout=5 time=34.36 ms
        --- google.com tcp-latency statistics ---
        1 packets transmitted
        ```
        
        ## Installation
        Via pip:
        ```
        pip install tcp-latency
        ```
        ## How to contribute
        1. Check for open issues or open a fresh issue to start a discussion around a feature idea or a bug.
        2. Fork [the repository](https://github.com/dgzlopes/tcp-latency) on GitHub to start making your changes to the master branch (or branch off of it).
        3. Write a test which shows that the bug was fixed or that the feature works as expected.
        4. Send a [pull request](https://help.github.com/en/articles/creating-a-pull-request-from-a-fork) and bug [me](https://github.com/dgzlopes) until it gets merged and published.
        
        Some things that would be great to have:
        - Add transmitted vs received statistics (e.g packet loss)
        - Add bytes information (ping-like)
        - Add support for machine-readable output (JSON,XML,YAML).
        - Add automated releases with TravisCI.
        - Improve test suite.
        - Improve `How to contribute` information (pyenv, tox, pre-commit...)
        
        ## Similar tools
        - [yantisj/tcpping](https://github.com/yantisj/tcpping)
        - [ipv6freely/tcpping](https://github.com/ipv6freely/tcpping)
        - [yahoo/serviceping](https://github.com/yantisj/tcpping)
        
Platform: UNKNOWN
Classifier: Development Status :: 3 - Alpha
Classifier: Intended Audience :: Developers
Classifier: Natural Language :: English
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: License :: OSI Approved :: MIT License
Classifier: Topic :: System :: Networking
Requires-Python: >=3.6
Description-Content-Type: text/markdown
