55 lines
1.9 KiB
ReStructuredText
55 lines
1.9 KiB
ReStructuredText
.. _user_installation:
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Installation
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============
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:Last Reviewed: 2023-08-10
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Installation with PIP
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---------------------
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Installation should be rather straight-forward. python-escpos is on PyPi,
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so you can simply enter:
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::
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pip install python-escpos
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This should install all necessary dependencies. Apart from that
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python-escpos is for some versions also available as a Debian package.
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If you want to always benefit from the newest stable releases you should
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always install from PyPi.
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If you use the ``--pre`` parameter for ``pip``, you will get the latest
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pre-release.
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Setup udev for USB-Printers
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---------------------------
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1. Get the *Product ID* and *Vendor ID* from the lsusb command
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``# lsusb Bus 002 Device 001: ID 1a2b:1a2b Device name``.
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(Or whichever way your system supplies to get the PID and VID.)
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2. Create a udev rule to let users belonging to *dialout* group use the
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printer. You can create the file
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``/etc/udev/rules.d/99-escpos.rules`` and add the following:
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``SUBSYSTEM=="usb", ATTRS{idVendor}=="1a2b", ATTRS{idProduct}=="1a2b", MODE="0664", GROUP="dialout"``
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Replace *idVendor* and *idProduct* hex numbers with the ones that you
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got from the previous step. Note that you can either, add yourself to
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"dialout" group, or use another group you already belongs instead
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"dialout" and set it in the ``GROUP`` parameter in the above rule.
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3. Restart udev ``# sudo service udev restart`` In some new systems it
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is done with ``# sudo udevadm control --reload``
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Enabling tab-completion in CLI
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------------------------------
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python-escpos has a CLI with tab-completion. This is realised with ``argcomplete``.
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In order for this to work you have to enable tab-completion, which is described in
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the `manual of argcomplete <https://argcomplete.readthedocs.io>`__.
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If you only want to enable it for python-escpos, or global activation does not work, try this:
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::
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eval "$(register-python-argcomplete python-escpos)"
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