Elpy and conda for a complete python config with Anaconda Python Distribution (handles virtualenvs including python process)

my-python-config.el

;; See my explanation of this config here: https://github.com/jorgenschaefer/elpy/issues/1087
(provide 'my-python-config)

(require 'python)

;;; NOTE: PATH environment var must have your path to Anaconda
;;; environment, e.g., ~/anaconda/bin, as the last thing for
;;; everything else below to work.
;;; [[file:~/Encrypted/org-mode-repo/OrgModeFiles/howto-python.org]]
;;; explains how to work with Anaconda virtual envs and Emacs.


;;; Removed my elpy and ob-ipython config as the first I don't use,
;;; because I use other packages, and the later because it doesn't
;;; work properly with my config
;;; [[id:A7A9B251-33B2-4FE7-99C1-BF42760E9678][file:~/elisp/config/my-python-config.el]]

;;; TODO Still need to learn how to use with pycscope.
;;; Disabled until then. I am hopeful that pycscope, cscope will give better
;;; jump to definition than elpy, jedi, anaconda-mode, and maybe even better
;;; than PyCharm.
(use-package helm-cscope
  :disabled t
  :ensure t)

;;; NOTE conda is needed to set anaconda virtual environment python process.
;;; Elpy can set the anaconda virtual env, but not the process. conda uses
;;; environment.yml (I think to find the process).
(use-package conda
  :ensure t
  :init
  (setq conda-anaconda-home (expand-file-name "~/anaconda"))
  :config
  ;; If you want interactive shell support, include:
  (conda-env-initialize-interactive-shells)
  ;; If you want eshell support, include:
  (conda-env-initialize-eshell)
  ;; If you want auto-activation, include:
  (conda-env-autoactivate-mode t)
  ;; Activate the project/virtual env you want to use.
  ;; Via M-x conda-env-activate RET analyticd-pysystemtrade
  ;; or
  ;; (conda-env-activate "analyticd-pysystemtrade")
  )

;;; NOTE I have everything I need with conda, anaconda-mode, and
;;; python-mode. I don't need elpy.
(add-to-list 'package-archives
             '("elpy" . "https://jorgenschaefer.github.io/packages/"))

;; NOTE elpy provides pyvenv and many other systems for python
;; hacking like jedi, etc. I prefer elpy to anaconda-mode or to just
;; jedi mode.
(use-package elpy
  ;; :disabled t
  :ensure t
  :config
  (require 'ag)
  (after 'my-ag-config
    (defun my-python-jump-to-definition (string directory)
      "Search using ag in a given DIRECTORY for a given literal search STRING,
with STRING defaulting to the symbol under point."
      (interactive (list (ag/read-from-minibuffer "Search string")
                         (read-directory-name
                          "Directory: "
                          (concat python-shell-virtualenv-root
                                  "/"
                                  "/lib/python3.6/site-packages/"))))
      (ag/search string directory)))

  (defun goto-def-or-rgrep ()
      "Go to definition of thing at point or do an rgrep in
      project if that fails"
      (interactive)
      (condition-case nil (elpy-goto-definition)
        (error (elpy-rgrep-symbol (thing-at-point 'symbol)))))
  (bind-key "M-." 'goto-def-or-rgrep elpy-mode-map)
  (bind-key "M-C-." 'my-python-jump-to-definition elpy-mode-map)
  (elpy-enable))