##// END OF EJS Templates
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export.py
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"""
Module containing single call export functions.
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2013, the IPython Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from functools import wraps
from IPython.nbformat.v3.nbbase import NotebookNode
from IPython.config import Config
from .exporter import Exporter
from .html import HTMLExporter
from .slides import SlidesExporter
from .latex import LatexExporter
from .markdown import MarkdownExporter
from .python import PythonExporter
from .rst import RSTExporter
#-----------------------------------------------------------------------------
# Classes
#-----------------------------------------------------------------------------
def DocDecorator(f):
#Set docstring of function
f.__doc__ = f.__doc__ + """
nb : Notebook node
config : config (optional, keyword arg)
User configuration instance.
resources : dict (optional, keyword arg)
Resources used in the conversion process.
Returns
----------
tuple- output, resources, exporter_instance
output : str
Jinja 2 output. This is the resulting converted notebook.
resources : dictionary
Dictionary of resources used prior to and during the conversion
process.
exporter_instance : Exporter
Instance of the Exporter class used to export the document. Useful
to caller because it provides a 'file_extension' property which
specifies what extension the output should be saved as.
WARNING: API WILL CHANGE IN FUTURE RELEASES OF NBCONVERT
"""
@wraps(f)
def decorator(*args, **kwargs):
return f(*args, **kwargs)
return decorator
#-----------------------------------------------------------------------------
# Functions
#-----------------------------------------------------------------------------
__all__ = [
'export',
'export_html',
'export_custom',
'export_slides',
'export_latex',
'export_markdown',
'export_python',
'export_rst',
'export_by_name',
'get_export_names',
'ExporterNameError'
]
class ExporterNameError(NameError):
pass
_exporters = {}
@DocDecorator
def export(exporter, nb, **kw):
"""
Export a notebook object using specific exporter class.
exporter : Exporter class type or instance
Class type or instance of the exporter that should be used. If the
method initializes it's own instance of the class, it is ASSUMED that
the class type provided exposes a constructor (__init__) with the same
signature as the base Exporter class.
"""
#Check arguments
if exporter is None:
raise TypeError("Exporter is None")
elif not isinstance(exporter, Exporter) and not issubclass(exporter, Exporter):
raise TypeError("exporter does not inherit from Exporter (base)")
if nb is None:
raise TypeError("nb is None")
#Create the exporter
resources = kw.pop('resources', None)
if isinstance(exporter, Exporter):
exporter_instance = exporter
else:
if exporter not in _exporters:
exporter_instance = _exporters[exporter] = exporter(**kw)
else:
exporter_instance = _exporters[exporter]
for attr, value in kw.items():
setattr(exporter_instance, attr, value)
#Try to convert the notebook using the appropriate conversion function.
if isinstance(nb, NotebookNode):
output, resources = exporter_instance.from_notebook_node(nb, resources)
elif isinstance(nb, basestring):
output, resources = exporter_instance.from_filename(nb, resources)
else:
output, resources = exporter_instance.from_file(nb, resources)
return output, resources
@DocDecorator
def export_custom(nb, **kw):
"""
Export a notebook object to a custom format
"""
return export(Exporter, nb, **kw)
@DocDecorator
def export_html(nb, **kw):
"""
Export a notebook object to HTML
"""
return export(HTMLExporter, nb, **kw)
@DocDecorator
def export_slides(nb, **kw):
"""
Export a notebook object to Slides
"""
return export(SlidesExporter, nb, **kw)
@DocDecorator
def export_latex(nb, **kw):
"""
Export a notebook object to LaTeX
"""
return export(LatexExporter, nb, **kw)
@DocDecorator
def export_markdown(nb, **kw):
"""
Export a notebook object to Markdown
"""
return export(MarkdownExporter, nb, **kw)
@DocDecorator
def export_python(nb, **kw):
"""
Export a notebook object to Python
"""
return export(PythonExporter, nb, **kw)
@DocDecorator
def export_rst(nb, **kw):
"""
Export a notebook object to reStructuredText
"""
return export(RSTExporter, nb, **kw)
@DocDecorator
def export_by_name(format_name, nb, **kw):
"""
Export a notebook object to a template type by its name. Reflection
(Inspect) is used to find the template's corresponding explicit export
method defined in this module. That method is then called directly.
format_name : str
Name of the template style to export to.
"""
function_name = "export_" + format_name.lower()
if function_name in globals():
return globals()[function_name](nb, **kw)
else:
raise ExporterNameError("template for `%s` not found" % function_name)
def get_export_names():
"""Return a list of the currently supported export targets
WARNING: API WILL CHANGE IN FUTURE RELEASES OF NBCONVERT"""
# grab everything after 'export_'
l = [x[len('export_'):] for x in __all__ if x.startswith('export_')]
# filter out the one method that is not a template
l = [x for x in l if 'by_name' not in x]
return sorted(l)