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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)
+  :commands python-shell-switch-to-shell
+  :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 "--pylab"
+            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 ""
+      ;;       )
+
+      (when (functionp 'helm-dash)
+        (setq-local helm-dash-docsets '("Python 2" "NumPy")))
+
+      ;; 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)
+      )
+
+    (bind-key "<return>" 'newline-and-indent python-mode-map)
+
+    ;; We no longer use smart-tab-mode
+    ;(add-to-list 'smart-tab-disabled-major-modes 'inferior-python-mode)
+
+    (define-auto-insert "\\.py\\'" 'ravi/auto-insert-py)
+    (defun ravi/auto-insert-py ()
+      (progn
+        (insert "#!/usr/bin/env python\n\n")
+        )
+      )
+
+    (use-package virtualenvwrapper
+      :config
+      (progn
+        (venv-initialize-interactive-shells)
+        (venv-initialize-eshell)
+        (setq venv-location (expand-file-name "~/usr/local/venv/"))
+        )
+
+      :ensure t
+      )
+
+    ;; 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. We
+    ;; work around it by adding sexpdata, jedi and python-epc as git submodules.
+    (use-package jedi-core
+      :config
+      (progn
+        (defun ravi/jedi-setup ()
+          (let ((basic-server-args (list
+                                    "--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"))
+                                   ))
+            (set (make-local-variable 'jedi:server-args)
+                 (if (and (boundp 'extra-jedi-args)
+                          (listp extra-jedi-args))
+                     (append basic-server-args extra-jedi-args)
+                   basic-server-args))
+            (jedi:setup)))
+
+        ;; Override pos-tip support to automatically delete tooltip
+        (defun ravi/jedi:tooltip-show (string)
+          (cond
+           ((and (memq 'pos-tip jedi:tooltip-method) window-system
+                 (featurep 'pos-tip))
+            (pos-tip-show (jedi:string-fill-paragraph string)
+                          'popup-tip-face nil nil 5))
+           ((and (memq 'popup jedi:tooltip-method)
+                 (featurep 'popup))
+            (popup-tip string))
+           (t (when (stringp string)
+                (let ((message-log-max nil))
+                  (message string))))))
+        (fset 'jedi:tooltip-show 'ravi/jedi:tooltip-show)
+
+        (defun ravi/python-jedi-hook-installer ()
+          ;; (setq jedi:complete-on-dot t) ; needs auto-complete
+          (add-hook 'hack-local-variables-hook 'ravi/jedi-setup nil t))
+        (add-hook 'python-mode-hook 'ravi/python-jedi-hook-installer)
+        )
+      :ensure t
+      )
+
+    (use-package company-jedi
+      :config
+      (progn
+        (add-to-list 'company-backends 'company-jedi))
+      :ensure t)
+
+    (use-package sphinx-doc
+      :config
+      (progn
+        (defun ravi/sphinx-doc-setup ()
+          (sphinx-doc-mode 1))
+        (add-hook 'python-mode-hook 'ravi/sphinx-doc-setup)
+        )
+      :diminish sphinx-doc-mode
+      :ensure t)
+
+    (use-package python-docstring
+      :config
+      (progn
+        (defun ravi/python-docstring-mode-setup ()
+          (python-docstring-mode 1))
+        (add-hook 'python-mode-hook 'ravi/python-docstring-mode-setup))
+      :diminish python-docstring-mode
+      :ensure t)
+
+    (use-package electric-operator
+      :config
+      (progn
+        (add-hook 'python-mode-hook #'electric-operator-mode))
+      ;; :diminish electric-operator
+      :ensure t)
+    )
+  )
+
+(provide 'ravi-init-python)
+