I just found the excellent pydoc-info mode for emacs from Jon Waltman. It allows me to hit
C-h S in a python file and enter a module name to see the documentation right away. If the point is on a symbol (=module or class or function), I can just hit enter to see its docs.
In its default configuration (see the Readme) it “only” reads the python documentation. This alone is really cool when writing new python code, but it s not enough, since I often use third party modules.
And now comes the treat: If those modules use sphinx for documentation (≥1.1), I can integrate them just like the standard python documentation!
It took me some time to get it right, but now I have all the documentation for the inverse modelling framework I contribute to directly at my fingertips: Just hit
C-h S ENTER when I’m on some symbol and a window shows me the docs:
The text in this image is from Wouter Peters. Used here as short citation which should be legal almost everywhere under citation rules.
I want to save you the work of figuring out how to do that yourself, so here’s a short guide for integrating the documentation for your python program into emacs.
The prerequisite for integrating your own documentation is to use sphinx for documenting your code. See their tutorial for info how to set it up. As soon as sphinx works for you, follow this guide to integrate your docs in your emacs.
First get pydoc-info and the python infofile (adapt this to your local setup):
# get the mode cd ~/.emacs.d/libs hg clone https://bitbucket.org/jonwaltman/pydoc-info # and the pregenerated info-file for python wget https://bitbucket.org/jonwaltman/pydoc-info/downloads/python.info.gz gunzip python.info sudo cp python.info /usr/share/info sudo install-info --info-dir=/usr/share/info python.info
(I also added pydoc-info as subrepo to my .emacs.d repo to make it easy to transfer my adaption between my different computers)
To build the info file for python yourself, have a look at the Readme.
Now turn your own documentation into an info document and install it.
Sphinx uses a core configuration file named conf.py. Add the following to that file, replacing all values but index and False by the appropriate names for you project:
# One entry per manual page. # list of tuples (startdocname, # targetname, title, author, dir_entry, # description, category, toctree_only). texinfo_documents = [ ('index', # startdocname, keep this! 'TARGETNAME', # targetname u'Long Title', # title u'Author Name', # author 'Name in the Directory Index of Info', # dir_entry u'Long Description', # description 'Software Development', # cathegory False), # better keep this, too, i think. ]
Then call sphinx and install the info files like this (maybe adapted to your local setup):
sphinx-build -b texinfo source/ texinfo/ cd texinfo sudo install-info --info-dir=/usr/share/info TARGETNAME.info sudo cp TARGETNAME.info /usr/share/info/
Finally add the following to your .emacs (or wherever you store your personal adaptions):
; Show python-documentation as info-pages via C-h S (setq load-path (cons "~/.emacs.d/libs/pydoc-info" load-path)) (require 'pydoc-info) (info-lookup-add-help :mode 'python-mode :parse-rule 'pydoc-info-python-symbol-at-point :doc-spec '(("(python)Index" pydoc-info-lookup-transform-entry) ("(TARGETNAME)Index" pydoc-info-lookup-transform-entry)))
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