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Project Description
.. image:: https://img.shields.io/pypi/v/portend.svg
:target: https://pypi.org/project/portend

.. image:: https://img.shields.io/pypi/pyversions/portend.svg

.. image:: https://img.shields.io/pypi/dm/portend.svg

.. image:: https://img.shields.io/travis/jaraco/portend/master.svg
:target: http://travis-ci.org/jaraco/portend

por·tend
pôrˈtend/
verb

be a sign or warning that (something, especially something momentous or calamitous) is likely to happen.

License
=======

License is indicated in the project metadata (typically one or more
of the Trove classifiers). For more details, see `this explanation
<https://github.com/jaraco/skeleton/issues/1>`_.

Usage
=====

Use portend to monitor TCP ports for bound or unbound states.

For example, to wait for a port to be occupied, timing out after 3 seconds::

portend.occupied('www.google.com', 80, timeout=3)

Or to wait for a port to be free, timing out after 5 seconds::

portend.free('::1', 80, timeout=5)

The portend may also be executed directly. If the function succeeds, it
returns nothing and exits with a status of 0. If it fails, it prints a
message and exits with a status of 1. For example::

python -m portend localhost:31923 free
(exits immediately)

python -m portend -t 1 localhost:31923 occupied
(one second passes)
Port 31923 not bound on localhost.

Portend also exposes a ``find_available_local_port`` for identifying
a suitable port for binding locally::

port = portend.find_available_local_port()
print(port, "is available for binding")

Portend additionally exposes the lower-level port checking functionality
in the :class:`Checker` class, which currently exposes only one public
method, ``assert_free``.

portend.Checker().assert_free('localhost', 31923)

If assert_free is passed a host/port combination that is occupied by
a bound listener (i.e. a TCP connection is established to that host/port),
assert_free will raise a :class:`PortNotFree` exception.


Release History

Release History

1.8

This version

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1.7.1

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1.7

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1.6.1

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1.6

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1.5.1

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1.4

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1.3

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1.2

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1.1.3

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1.1.1

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1.1

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1.0.2

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1.0.1

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1.0

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0.0.0

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
portend-1.8-py2.py3-none-any.whl (6.5 kB) Copy SHA256 Checksum SHA256 py2.py3 Wheel Jan 23, 2017
portend-1.8.tar.gz (7.4 kB) Copy SHA256 Checksum SHA256 Source Jan 23, 2017

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