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+;;; ravi-init-python.el --- python support
+
+;; Copyright (C) 2013
+
+;; Author:  <ravi@nero.lan>
+;; Keywords:
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Python programming setup
+
+;;; Code:
+
+(use-package python
+  :mode ("\\.py\\'" . python-mode)
+  :config
+  (progn
+
+    (add-hook 'python-mode-hook 'ravi/python-mode-hook)
+    (defun ravi/python-mode-hook()
+      ;; Set ipython as our interpreter
+      (setq python-shell-interpreter "ipython"
+            python-shell-interpreter-args ""
+            python-shell-prompt-regexp "In \\[[0-9]+\\]: "
+            python-shell-prompt-output-regexp "Out\\[[0-9]+\\]: "
+            python-shell-completion-setup-code
+            "from IPython.core.completerlib import module_completion"
+            python-shell-completion-module-string-code
+            "';'.join(module_completion('''%s'''))\n"
+            python-shell-completion-string-code
+            "';'.join(get_ipython().Completer.all_completions('''%s'''))\n"
+            )
+
+      ;; For ipython 0.10, uncomment the following:
+      ;; (setq python-shell-completion-string-code
+      ;;       "';'.join(__IP.complete('''%s'''))\n"
+      ;;       python-shell-completion-module-string-code ""
+      ;;       )
+
+      ;; I'd really prefer indentation by 2 spaces, but have too much existing
+      ;; python code with indentation at 4 spaces.
+      (setq python-indent-offset 4)
+      )
+
+    (use-package virtualenvwrapper
+      :config
+      (progn
+        (venv-initialize-interactive-shells)
+        (venv-initialize-eshell)
+        (setq venv-location (expand-file-name "~/usr/local/venv/"))
+        )
+
+      :ensure t
+      )
+
+    ;; Use pymacs+ropemacs for code completion plus documentation browsing.
+    ;; The main issue is that this requires both python-side and emacs-side
+    ;; support, and hence cannot be installed as a package from MELPA.
+    (use-package pymacs
+      :disabled t
+      :init
+      (progn
+        ;; Many bindings provide same functionality as from other packages.
+        (setq ropemacs-global-prefix nil)
+        ;(setq ropemancs-local-prefix nil)
+        ;(setq ropemacs-enable-shortcuts nil)
+        )
+      :config
+      (progn
+        (pymacs-load "ropemacs" "rope-")
+        (bind-key "C-c C-d" 'rope-show-calltip python-mode-map)
+
+        ;; Auto-complete sources; see
+        ;;   http://www.cx4a.org/pub/auto-complete-python.el
+        (defvar ac-ropemacs-completions-cache nil)
+
+        (defvar ac-source-ropemacs
+          '((init
+             . (lambda ()
+                 (setq ac-ropemacs-completions-cache
+                       (mapcar
+                        (lambda (completion)
+                          (concat ac-prefix completion))
+                        (ignore-errors
+                          (rope-completions))))))
+            (candidates . (lambda ()
+                            (all-completions ac-prefix ac-ropemacs-completions-cache)))))
+
+        (defun ac-ropemacs-setup ()
+          (ac-ropemacs-require)
+          ;(setq ac-sources (append (list 'ac-source-ropemacs) ac-sources))
+          (setq ac-omni-completion-sources '(("\\." ac-source-ropemacs))))
+
+        (add-hook 'python-mode-hook 'ac-ropemacs-setup)
+
+        )
+      )
+
+    ;; Use jedi.el for code completion plus documentation browsing.
+    ;; The main issue is that this requires both python-side and emacs-side
+    ;; support, but the python-side support cannot be installed as a package
+    ;; from MELPA. Fedora does not provide python-epc as an RPM either.
+    (use-package jedi
+      :config
+      (progn
+        (setq jedi:server-args
+              `("--sys-path" ,(ravi/emacs-file "site-lisp/python-epc")
+                "--sys-path" ,(ravi/emacs-file "site-lisp/sexpdata")
+                "--sys-path" ,(ravi/emacs-file "site-lisp/jedi")))
+        (setq jedi:complete-on-dot t)
+        (add-hook 'python-mode-hook 'jedi:setup)
+        )
+      :ensure t
+      :disabled nil
+      )
+    )
+  )
+
+(provide 'ravi-init-python)
+