no mu4e package and ubuntu version

.emacs

@@ -188,7 +188,7 @@
   :after org 
   :bind ("C-x p" . org-pomodoro))
 ;; org configuration:
-(setq org-agenda-files '("~/beorg/phd.org" "~/beorg/students.org" "~/beorg/inbox.org" "~/beorg/academia.org"))
+;;(setq org-agenda-files '("~/beorg/phd.org" "~/beorg/students.org" "~/beorg/inbox.org" "~/beorg/academia.org"))
 (add-hook 'org-mode-hook
 	  (lambda()
 	    ;; dictionary
@@ -209,7 +209,7 @@
 (dolist (hook '(org-mode-hook latex-mode-hook tex-mode-hook git-commit-mode-hook))
 	(add-hook hook (lambda () (flyspell-mode 1))))
 ;;(setq ispell-dictionary "en")
-(setq ispell-program-name "/usr/local/bin/aspell")
+(setq ispell-program-name "/usr/bin/aspell")
 ;; Set default font:
 (add-to-list 'default-frame-alist
 	     '(font . "Source Code Pro-14"))
@@ -279,129 +279,13 @@
   :config
   (setq python-shell-interpreter "python3")
   (setq venv-location "~/.virtualenvs"))
-;;mu4e
-;; (use-package mu4e
-;;   :commands (mu4e)
-;;   :init
-;;   ;;(progn (require 'helm-mu))
-;;   :config
-;;   (add-to-list 'load-path "/usr/local/share/emacs/site-lisp/mu/mu4e")
-;;   (setq mu4e-mu-binary "/usr/local/bin/mu"))
-;;-+-+-+-+-+-+-+-+-+-+-+-+
-;; "default" parameters from Gmail
-(setq user-full-name  "Gerardo Marx Chávez-Campos") ;;user
-(setq mu4e-compose-signature t) ;; signature in file ~/.signature
-(add-hook 'mu4e-compose-mode-hook 'flyspell-mode(setq ispell-local-dictionary "castellano")) ;; spell check
-;; attempt to show images when viewing messages
-(setq mu4e-view-show-images t)
-(setq mu4e-sent-folder "/Gmail/sent"
-      ;; mu4e-sent-messages-behavior 'delete ;; Unsure how this should be configured
-      mu4e-drafts-folder "/Gmail/drafts"
-      user-mail-address "gmarx_cc@itmorelia.edu.mx"
-      smtpmail-local-domain "gmail.com"
-      smtpmail-default-smtp-server "smtp.gmail.com"
-      smtpmail-stream-type 'starttls
-      smtpmail-smtp-server "smtp.gmail.com"
-      smtpmail-smtp-service 587)
-;;  ---
-;; Now I set a list of 
-(defvar my-mu4e-account-alist
-  '(("Gmail"
-     (mu4e-sent-folder "/Gmail/sent")
-     (mu4e-drafts-folder "/Gmail/drafts")
-     (user-mail-address "gmarx_cc@itmorelia.edu.mx")
-     (smtpmail-smtp-user "gmarx_cc@itmorelia.edu.mx")
-     (smtpmail-local-domain "gmail.com")
-     (smtpmail-default-smtp-server "smtp.gmail.com")
-     (smtpmail-stream-type starttls)
-     (smtpmail-smtp-server "smtp.gmail.com")
-     (smtpmail-smtp-service 587)
-     )
-    ;; Include any other accounts here ...
-   ("Exchange"
-    (mu4e-sent-folder "/Exchange/sent")
-    (mu4e-drafts-folder "/Exchange/drafts")
-    (user-mail-address "gerardo.cc@morelia.tecnm.mx")
-    (smtpmail-smtp-user "gerardo.cc@morelia.tecnm.mx")
-    (smtpmail-local-domain "office365.com")
-    (smtpmail-default-smtp-server "smtp.office365.com")
-    (smtpmail-stream-type starttls)
-    (smtpmail-smtp-server "smtp.office365.com")
-    (smtpmail-smtp-service 587)
-     )
-   ;;
-    ;; hotmail
-   ("Hotmail"
-    (mu4e-sent-folder "/Hotmail/sent")
-    (mu4e-drafts-folder "/Hotmail/drafts")
-    (user-mail-address "gmarx_cc@hotmail.com")
-    (smtpmail-smtp-user "gmarx_cc@hotmail.com")
-    (smtpmail-local-domain "office365.com")
-    (smtpmail-default-smtp-server "smtp.office365.com")
-    (smtpmail-stream-type starttls)
-    (smtpmail-smtp-server "smtp.office365.com")
-    (smtpmail-smtp-service 25)
-     )
-     ))
-;;  ---
-(defun my-mu4e-set-account ()
-  "Set the account for composing a message.
-   This function is taken from: 
-     https://www.djcbsoftware.nl/code/mu/mu4e/Multiple-accounts.html"
-  (let* ((account
-    (if mu4e-compose-parent-message
-        (let ((maildir (mu4e-message-field mu4e-compose-parent-message :maildir)))
-    (string-match "/\\(.*?\\)/" maildir)
-    (match-string 1 maildir))
-      (completing-read (format "Compose with account: (%s) "
-             (mapconcat #'(lambda (var) (car var))
-            my-mu4e-account-alist "/"))
-           (mapcar #'(lambda (var) (car var)) my-mu4e-account-alist)
-           nil t nil nil (caar my-mu4e-account-alist))))
-   (account-vars (cdr (assoc account my-mu4e-account-alist))))
-    (if account-vars
-  (mapc #'(lambda (var)
-      (set (car var) (cadr var)))
-        account-vars)
-      (error "No email account found"))))
-(add-hook 'mu4e-compose-pre-hook 'my-mu4e-set-account)
-;;-+-+-+-+-+-+-+-+-+-+-+-+
-;;---------
-;; mu4e-maildirs-extension
-;; (use-package mu4e-maildirs-extension
-;;   :ensure t
-;;   :init
-;;   (mu4e-maildirs-extension)
-;;   :custom
-;;   (mu4e-maildirs-extension-custom-list '("/Gmail/INBOX" "/Exchange/INBOX" "/Hotmail/INBOX"))
-;;   )
 
-;; mu4e-alert
-(use-package mu4e-alert
+;; pyenv:
+(use-package pyvenv
   :ensure t
-  :after mu4e
-  :init
-  (setq mu4e-alert-interesting-mail-query
-    (concat
-     "flag:unread maildir:/Exchange/INBOX "
-     "OR "
-     "flag:unread maildir:/Gmail/INBOX"
-     ))
-  (mu4e-alert-enable-mode-line-display)
-  (defun gjstein-refresh-mu4e-alert-mode-line ()
-    (interactive)
-    (mu4e~proc-kill)
-    (mu4e-alert-enable-mode-line-display)
-    )
-  (run-with-timer 0 60 'gjstein-refresh-mu4e-alert-mode-line))
-;; helm
-;; (use-package helm-mu
-;;   :ensure t
-;;   :config
-;;   ;;(define-key mu4e-main-mode-map "s" 'helm-mu)
-;;   ;;(define-key mu4e-headers-mode-map "s" 'helm-mu)
-;;   ;;(define-key mu4e-view-mode-map "s" 'helm-mu)
-;;   )
+  :config
+  (pyvenv-mode 1))
+
   
 (custom-set-variables
  ;; custom-set-variables was added by Custom.
@@ -410,10 +294,10 @@
  ;; If there is more than one, they won't work right.
  '(custom-safe-themes
    (quote
-    ("99ea831ca79a916f1bd789de366b639d09811501e8c092c85b2cb7d697777f93" "bf387180109d222aee6bb089db48ed38403a1e330c9ec69fe1f52460a8936b66" default)))
+    ("71e5acf6053215f553036482f3340a5445aee364fb2e292c70d9175fb0cc8af7" "99ea831ca79a916f1bd789de366b639d09811501e8c092c85b2cb7d697777f93" "bf387180109d222aee6bb089db48ed38403a1e330c9ec69fe1f52460a8936b66" default)))
  '(package-selected-packages
    (quote
-    (latex-preview-pane org-pomodoro which-key virtualenvwrapper use-package treemacs-projectile pdf-tools org-bullets mu4e-maildirs-extension mu4e-alert magit helm-projectile helm-mu flycheck expand-region doom-themes doom-modeline dashboard company auctex)))
+    (pyvenv latex-preview-pane org-pomodoro which-key virtualenvwrapper use-package treemacs-projectile pdf-tools org-bullets mu4e-maildirs-extension mu4e-alert magit helm-projectile helm-mu flycheck expand-region doom-themes doom-modeline dashboard company auctex)))
  '(pdf-tools-handle-upgrades nil)
  '(safe-local-variable-values
    (quote