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Project Description

The setproctitle module allows a process to change its title (as displayed by system tools such as ps and top).

Changing the title is mostly useful in multi-process systems, for example when a master process is forked: changing the children’s title allows to identify the task each process is busy with. The technique is used by PostgreSQL and the OpenSSH Server for example.

The procedure is hardly portable across different systems. PostgreSQL provides a good multi-platform implementation: this module is a Python wrapper around PostgreSQL code.

Installation

setproctitle is a C extension: in order to build it you will need a C compiler and the Python development support (the python-dev package in most Linux distributions). No further external dependencies are required.

You can use pip to install the module:

pip install setproctitle

You can use pip -t or virtualenv for local installations, sudo pip for a system-wide one… the usual stuff. Read pip or virtualenv docs for all the details.

Python 3 support

As of version 1.1 the module works with Python 3. Just use pip/virtualenv for Python 3.

In order to build from the source package and test the module under Python 3, the Makefile contains some helper targets.

Usage

The setproctitle module exports the following functions:

setproctitle(title)
Set title as the title for the current process.
getproctitle()
Return the current process title.

Environment variables

A few environment variables can be used to customize the module behavior:

SPT_NOENV

Avoid clobbering /proc/PID/environ.

On many platforms, setting the process title will clobber the environ memory area. os.environ will work as expected from within the Python process, but the content of the file /proc/PID/environ will be overwritten. If you require this file not to be broken you can set the SPT_NOENV environment variable to any non-empty value: in this case the maximum length for the title will be limited to the length of the command line.

SPT_DEBUG

Print debug information on stderr.

If the module doesn’t work as expected you can set this variable to a non-empty value to generate information useful for debugging. Note that the most useful information is printed when the module is imported, not when the functions are called.

Module status

The module can be currently compiled and effectively used on the following platforms:

  • GNU/Linux
  • BSD
  • MacOS X
  • Windows

Note that on Windows there is no way to change the process string: what the module does is to create a Named Object whose value can be read using a tool such as Process Explorer (contribution of a more useful tool to be used together with setproctitle would be well accepted).

The module can probably work on HP-UX, but I haven’t found any to test with. It is unlikely that it can work on Solaris instead.

Other known implementations and discussions

  • procname: a module exposing the same functionality, but less portable and not well packaged.
  • Issue 5672: where the introduction of such functionality into the stdlib is being discussed.

Releases history

Version 1.1.10

  • Fixed building with certain prctl.h implementations (issue #44).
  • Use setuptools if available (issue #48).

Version 1.1.9

  • Fixed build on VC (issues #20, #33).
  • Added MANIFEST.in to the source distribution to help with RPM building (issue #30).

Version 1.1.8

  • Added support for Python “diehard” 2.4 (pull request #3).
  • Fixed build on Mac OS X 10.9 Maverick (issue #27).

Version 1.1.7

Version 1.1.6

  • The module can be compiled again on Windows (issue #21).

Version 1.1.5

  • No module bug, but a packaging issue: files README and HISTORY added back into the distribution.

Version 1.1.4

  • The module works correctly in embedded Python.
  • setproctitle() accepts a keyword argument.
  • Debug output support always compiled in: the variable SPT_DEBUG can be used to emit debug log.

Version 1.1.3

  • Don’t clobber environ if the variable SPT_NOENV is set (issue #16).

Version 1.1.2

  • Find the setproctitle include file on OpenBSD (issue #11).
  • Skip test with unicode if the file system encoding wouldn’t make it pass (issue #13).

Version 1.1.1

  • Fixed segfault when the module is imported under mod_wsgi (issue #9).

Version 1.1

  • The module works correctly with Python 3.

Version 1.0.1

  • setproctitle() works even when Python messes up with argv, e.g. when run with the -m option (issue #8).

Version 1.0

No major change since the previous version. The module has been heavily used in production environment without any problem reported, so it’s time to declare it stable.

Version 0.4

Version 0.3

  • Module works on Mac OS X 10.2. Reported working on OS X 10.6 too.

Version 0.2

  • Added prctl() call on Linux >= 2.6.9 to update /proc/self/status.

Version 0.1

  • Initial public release.
Release History

Release History

1.1.10

This version

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1.1.9

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1.1.8

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1.1.7

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1.1.6

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1.1.5

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1.1.4

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1.1.3

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1.1.2

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1.1.1

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1.1

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.0.1

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.0

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.4

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0.3

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.2

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0.1

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
setproctitle-1.1.10.tar.gz (24.0 kB) Copy SHA256 Checksum SHA256 Source May 11, 2016
setproctitle-1.1.10.zip (34.1 kB) Copy SHA256 Checksum SHA256 Source May 11, 2016

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