Skip to main content

Thin wrapper for pandoc.

Project description

# pypandoc

[![Build Status](https://travis-ci.org/bebraw/pypandoc.svg?branch=master)](https://travis-ci.org/bebraw/pypandoc)
[![PyPI version](https://badge.fury.io/py/pypandoc.svg)](https://pypi.python.org/pypi/pypandoc/)
[![conda version](https://anaconda.org/conda-forge/pypandoc/badges/version.svg)](https://anaconda.org/conda-forge/pypandoc/)

pypandoc provides a thin wrapper for [pandoc](http://johnmacfarlane.net/pandoc/), a universal
document converter.

## Installation

pypandoc uses `pandoc`, so it needs an available installation of `pandoc`. For some common cases
(wheels, conda packages), pypandoc already includes `pandoc` (and `pandoc_citeproc`) in it's
prebuilt package.

If `pandoc` is already installed (`pandoc` is in the PATH), `pypandoc` uses the version with the
higher version number and if both are the same, the already installed version. See [Specifying the location of pandoc binaries](#specifying_binaries) for more.

To use `pandoc` filters, you must have the relevant filter installed on your machine.

### Installing via pip

Install via `pip install pypandoc`.

Prebuilt [wheels for Windows and Mac OS X](https://pypi.python.org/pypi/pypandoc/) include
pandoc. If there is no prebuilt binary available, you have to
[install `pandoc` yourself](#installing-pandoc-manually).

If you use Linux and have [your own wheelhouse](http://wheel.readthedocs.org/en/latest/#usage),
you can build a wheel which include `pandoc` with
`python setup.py download_pandoc; python setup.py bdist_wheel`. Be aware that this works only
on 64bit intel systems, as we only download it from the
[official source](https://github.com/jgm/pandoc/releases).

### Installing via conda

`pypandoc` is included in [conda-forge](https://conda-forge.github.io/). The conda packages will
also install the `pandoc` package, so `pandoc` is available in the installation.

Install via `conda install -c conda-forge pypandoc`.

You can also add the channel to your conda config via
`conda config --add channels conda-forge`. This makes it possible to
use `conda install pypandoc` directly and also lets you update via `conda update pypandoc`.

### Installing pandoc

If you don't get `pandoc` installed via a prebuild wheel which includes `pandoc` or via the
conda package dependencies, you need to install `pandoc` by yourself.

#### Installing pandoc via pypandoc

Installing via pypandoc is possible on Windows, Mac OS X or Linux (Intel-based):

```python
# expects a installed pypandoc: pip install pypandoc
from pypandoc.pandoc_download import download_pandoc
# see the documentation how to customize the installation path
# but be aware that you then need to include it in the PATH
download_pandoc()
```

The default install location is included in the search path for `pandoc`, so you
don't need to add it to `PATH`.

#### Installing pandoc manually

Installing manually via the system mechanism is also possible. Such installation mechanism
make `pandoc` available on many more platforms:

- Ubuntu/Debian: `sudo apt-get install pandoc`
- Fedora/Red Hat: `sudo yum install pandoc`
- Arch: `sudo pacman -S pandoc`
- Mac OS X with Homebrew: `brew install pandoc pandoc-citeproc Caskroom/cask/mactex`
- Machine with Haskell: `cabal-install pandoc`
- Windows: There is an installer available
[here](http://johnmacfarlane.net/pandoc/installing.html)
- [FreeBSD port](http://www.freshports.org/textproc/pandoc/)
- Or see http://johnmacfarlane.net/pandoc/installing.html

Be aware that not all install mechanismen put `pandoc` in `PATH`, so you either
have to change `PATH` yourself or set the full path to `pandoc` in
`PYPANDOC_PANDOC`. See the next section for more information.

### <a name="specifying_binaries"></a>Specifying the location of pandoc binaries

You can point to a specific pandoc version by setting the environment variable
`PYPANDOC_PANDOC` to the full path to the pandoc binary
(`PYPANDOC_PANDOC=/home/x/whatever/pandoc` or `PYPANDOC_PANDOC=c:\pandoc\pandoc.exe`).
If this environment variable is set, this is the only place where pandoc is searched for.

In certain cases, e.g. pandoc is installed but a web server with its own user
cannot find the binaries, it is useful to specify the location at runtime:

```python
import os
os.environ.setdefault('PYPANDOC_PANDOC', '/home/x/whatever/pandoc')
```

## Usage

There are two basic ways to use `pypandoc`: with input files or with input
strings.


```python
import pypandoc

# With an input file: it will infer the input format from the filename
output = pypandoc.convert_file('somefile.md', 'rst')

# ...but you can overwrite the format via the `format` argument:
output = pypandoc.convert_file('somefile.txt', 'rst', format='md')

# alternatively you could just pass some string. In this case you need to
# define the input format:
output = pypandoc.convert_text('#some title', 'rst', format='md')
# output == 'some title\r\n==========\r\n\r\n'
```

`convert_text` expects this string to be unicode or utf-8 encoded bytes. `convert_*` will always
return a unicode string.

It's also possible to directly let `pandoc` write the output to a file. This is the only way to
convert to some output formats (e.g. odt, docx, epub, epub3, pdf). In that case `convert_*()` will
return an empty string.

```python
import pypandoc

output = pypandoc.convert_file('somefile.md', 'docx', outputfile="somefile.docx")
assert output == ""
```

In addition to `format`, it is possible to pass `extra_args`.
That makes it possible to access various `pandoc` options easily.

```python
output = pypandoc.convert_text(
'<h1>Primary Heading</h1>',
'md', format='html',
extra_args=['--atx-headers'])
# output == '# Primary Heading\r\n'
output = pypandoc.convert(
'# Primary Heading',
'html', format='md',
extra_args=['--base-header-level=2'])
# output == '<h2 id="primary-heading">Primary Heading</h2>\r\n'
```
pypandoc now supports easy addition of
[pandoc filters](http://johnmacfarlane.net/pandoc/scripting.html).

```python
filters = ['pandoc-citeproc']
pdoc_args = ['--mathjax',
'--smart']
output = pd.convert_file(source=filename,
to='html5',
format='md',
extra_args=pdoc_args,
filters=filters)
```
Please pass any filters in as a list and not as a string.

Please refer to `pandoc -h` and the
[official documentation](http://johnmacfarlane.net/pandoc/README.html) for further details.

> Note: the old way of using `convert(input, output)` is deprecated as in some cases it wasn't
possible to determine whether the input should be used as a filename or as text.

## Dealing with Formatting Arguments

Pandoc supports custom formatting though `-V` parameter. In order to use it through
pypandoc, use code such as this:

```python
output = pypandoc.convert_file('demo.md', 'pdf', outputfile='demo.pdf',
extra_args=['-V', 'geometry:margin=1.5cm'])
```

> Note: it's important to separate `-V` and its argument within a list like that or else
it won't work. This gotcha has to do with the way
[`subprocess.Popen`](https://docs.python.org/2/library/subprocess.html#subprocess.Popen) works.

## Getting Pandoc Version

As it can be useful sometimes to check what Pandoc version is available at your system or which
particular `pandoc` binary is used by `pypandoc`. For that, `pypandoc` provides the following
utility functions. Example:

```
print(pypandoc.get_pandoc_version())
print(pypandoc.get_pandoc_path())
print(pypandoc.get_pandoc_formats())
```

## Related

* [pydocverter](https://github.com/msabramo/pydocverter) is a client for a service called
[Docverter](http://www.docverter.com/), which offers `pandoc` as a service (plus some extra goodies).
* See [pyandoc](http://pypi.python.org/pypi/pyandoc/) for an alternative implementation of a `pandoc`
wrapper from Kenneth Reitz. This one hasn't been active in a while though.

## Contributing

Contributions are welcome. When opening a PR, please keep the following guidelines in mind:

1. Before implementing, please open an issue for discussion.
2. Make sure you have tests for the new logic.
3. Make sure your code passes `flake8 pypandoc/*.py tests.py`
4. Add yourself to contributors at `README.md` unless you are already there. In that case tweak your contributions.

Note that for citeproc tests to pass you'll need to have [pandoc-citeproc](https://github.com/jgm/pandoc-citeproc) installed. If you installed a prebuilt wheel or conda package, it is already included.

## Contributors

* [Valentin Haenel](https://github.com/esc) - String conversion fix
* [Daniel Sanchez](https://github.com/ErunamoJAZZ) - Automatic parsing of input/output formats
* [Thomas G.](https://github.com/coldfix) - Python 3 support
* [Ben Jao Ming](https://github.com/benjaoming) - Fail gracefully if `pandoc` is missing
* [Ross Crawford-d'Heureuse](http://github.com/rosscdh) - Encode input in UTF-8 and add Django
example
* [Michael Chow](https://github.com/machow) - Decode output in UTF-8
* [Janusz Skonieczny](https://github.com/wooyek) - Support Windows newlines and allow encoding to
be specified.
* [gabeos](https://github.com/gabeos) - Fix help parsing
* [Marc Abramowitz](https://github.com/msabramo) - Make `setup.py` fail hard if `pandoc` is
missing, Travis, Dockerfile, PyPI badge, Tox, PEP-8, improved documentation
* [Daniel L.](https://github.com/mcktrtl) - Add `extra_args` example to README
* [Amy Guy](https://github.com/rhiaro) - Exception handling for unicode errors
* [Florian Eßer](https://github.com/flesser) - Allow Markdown extensions in output format
* [Philipp Wendler](https://github.com/PhilippWendler) - Allow Markdown extensions in input format
* [Jan Schulz](https://github.com/JanSchulz) - Handling output to a file, Travis to work on newer version of Pandoc, return code checking, get_pandoc_version. Helped to fix the Travis build, new `convert_*` API
* [Aaron Gonzales](https://github.com/xysmas) - Added better filter handling
* [David Lukes](https://github.com/dlukes) - Enabled input from non-plain-text files and made sure tests clean up template files correctly if they fail
* [valholl](https://github.com/valholl) - Set up licensing information correctly and include examples to distribution version
* [Cyrille Rossant](https://github.com/rossant) - Fixed bug by trimming out stars in the list of `pandoc` formats. Helped to fix the Travis build.
* [Paul Osborne](https://github.com/posborne) - Don't require `pandoc` to install pypandoc.
* [Felix Yan](https://github.com/felixonmars) - Added installation instructions for Arch Linux.

## License

`pypandoc` is available under MIT license. See LICENSE for more details. `pandoc` itself is [available under the GPL2 license](https://github.com/jgm/pandoc/blob/master/COPYING).

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for pypandoc, version 1.3.1
Filename, size File type Python version Upload date Hashes
Filename, size pypandoc-1.3.1.tar.gz (24.3 kB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page