CODEWITHSUNDEEP
pythonemacspython-mode
Dan
Dan

Reputation: 783

Understanding which python mode is loaded by emacs / Aquamacs and why

I have emacs 24.1.1, which comes with GNU's python.el in byte-compiled form at emacs/24.1/lisp/progmodes.

I downloaded Fabian Gallina's python.el (note the same name) and placed it at emacs/site-lisp, which is part of emacs' load-path.

When I edit a Python file, it is Gallina's mode which is loaded, NOT GNU's. However, I have not put (require 'python) in my .emacs file, despite what Gallina's documentation suggests.

Why is this? Why does Gallina's python.el take precedence over GNU's? Why does it get loaded without (require 'python)?

Upvotes: 0

Views: 851

Answers (2)

Andreas Röhler
Andreas Röhler

Reputation: 4804

To load an already loaded library from new place, write in your Emacs init-file something like

(unload-feature...

(load FROM-NEW-PLACE...

Upvotes: 0

event_jr
event_jr

Reputation: 17707

Most libraries you use in Emacs aren't loaded when you start Emacs. They are autoloaded see manual.

If you look at your load-path variable, you'll see that site-lisp comes before Emacs' own libraries. So when Emacs goes to load "python.el" it finds your version first.

Note that when you do C-h f python-mode before running the command, you'll actually see the description of Emacs's version of the command. This is an unfortunate side-effect of the author's choosing the same filename.

Once you've run python-mode once, the help text will change to show your version.

Upvotes: 2

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