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version: 0.2
text: rst
fix_inline_single_backquotes: true
# pdf: true
--- |
**********
Installing
**********
Make sure you have a recent version of ``pip`` and ``setuptools``
installed. The later needs environment marker support
(``setuptools>=20.6.8``) and that is e.g. bundled with Python 3.4.6 but
not with 3.4.4. It is probably best to do::
pip install -U pip setuptools wheel
in your environment (``virtualenv``, (Docker) container, etc) before
installing ``ruamel.yaml``.
``ruamel.yaml`` itself should be installed from PyPI_ using::
pip install ruamel.yaml
If you want to process jinja2/YAML templates (which are not valid YAML
with the default jinja2 markers), do ``pip install
ruamel.yaml[jinja2]`` (you might need to quote the last argument
because of the ``[]``)
There also is a commandline utility ``yaml`` available after installing::
pip install ruamel.yaml.cmd
that allows for round-trip testing/re-indenting and conversion of YAML
files (JSON,INI,HTML tables)
Optional requirements
+++++++++++++++++++++
If you have the the header files for your Python executables installed
then you can use the (non-roundtrip), but faster, C loader and emitter.
On Debian systems you should use::
sudo apt-get install python3-dev
you can leave out ``python3-dev`` if you don't use python3
For CentOS (7) based systems you should do::
sudo yum install python-devel
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