i am using emacs 24.3 under windows, ipython 0.13.1, python 2.7.3
i use the python.el with emacs withe the following configure the ipython shell
;; setup ipython for default interpreter
(setq python-shell-interpreter "C:/Python27/python")
(setq python-shell-interpreter-args "-i C:/Python27/Scripts/ipython-script.py --pylab")
(setq python-shell-prompt-regexp "In \\[[0-9]+\\]: ")
(setq python-shell-prompt-output-regexp "Out\\[[0-9]+\\]: ")
(setq python-shell-completion-setup-code "from IPython.core.completerlib import module_completion")
(setq python-shell-completion-module-string-code "';'.join(module_completion('''%s'''))\n")
(setq python-shell-completion-string-code "';'.join(get_ipython().Completer.all_completions('''%s'''))\n")
it works pretty well, except just no figure output...
does anyone experience the same here? solution?
It looks like you are using Qt4Agg backend (see the welcome to message). That means you should see a window showing the plot. If not, I suggest you to write a script and execute it outside of Emacs and IPython to localize the problem.
If you want to see plots in Emacs, you can do it with my plugin called EIN.
the real solution is modify
(setq python-shell-interpreter-args "-i C:/Python27/Scripts/ipython-script.py --pylab")
to
(setq python-shell-interpreter-args "-i C:/Python27/Scripts/ipython-script.py console --pylab")
Try
pyplot.show(block=True)
you have to add
(setq python-shell-interpreter-args "-i C:/Python27/Scripts/ipython-script.py --pylab=inline")
Related
When I launch an ipython process in an emacs buffer, it prints trash text to the buffer:
^[[J^[[?7h^[[?12l^[[?25h^[[?2004l
^[[?12l^[[?25h
The ipython buffer does this every time I launch it, every time I evaluate code in another buffer, every time I evaluate code in that buffer. Ipython never does this from the bash CLI, In [1]:
Where could I look to change this behavior to a more sensible and terse prompt, such as what ipython does in bash?
This is in emacs 24.5.1 inside tmux 2.0 with python 2.7.6, ipython 5.1.0, python-mode version 6.2.1, running on Ubuntu 14.04 LTS.
Here's every line in my .emacs file that even mentions python:
; (require 'python-settings)
; (require 'ein)
(setq py-install-directory "~/.emacs.d/python-mode")
(add-to-list 'load-path py-install-directory)
(require 'python-mode)
(setq python-shell-interpreter "~/anaconda2/bin/python"
python-shell-interpreter-args "-i console --matplotlib")
(setq-default py-shell-name "ipython")
(setq-default py-which-bufname "IPython")
; use the wx backend, for both mayavi and matplotlib
(setq py-python-command-args
'("--gui=wx" "--pylab=wx" "-colors" "Linux"))
;; responsible for the annoying window rearrangement behavior after every code execution? Nope.
(setq py-force-py-shell-name-p t)
; switch to the interpreter after executing code
(setq py-shell-switch-buffers-on-execute-p nil)
(setq py-switch-buffers-on-execute-p nil)
(setq py-shell-local-path "/home/ftamborello/anaconda2/bin/python"
py-use-local-default t)
; don't split windows
(setq py-split-window-on-execute-p nil)
; try to automagically figure out indentation
(setq py-smart-indentation t)
; enable flycheck syntax support
; (add-hook 'after-init-hook #'global-flycheck-mode)
what Thomas K suggests is the actual solution, just edit your init.el file and paste the following:
RUN IPYTHON6.4 IN EMACS ALONG WITH PYTHON3+
(setq python-shell-interpreter "ipython3"
python-shell-interpreter-args "-i --simple-prompt")
My .emacs contains
(setenv "PATH" (concat ".:/usr/texbin:/opt/local/bin" (getenv "PATH")))
(setq exec-path (append exec-path '(".:/usr/texbin:/opt/local/bin")))
(add-to-list 'load-path "/usr/local/share/emacs/site-lisp")
(require 'tex-site)
(load "auctex.el" nil t t)
(load "preview-latex.el" nil t t)
/usr/texbin is where latex/pdflatex/.. are located.
/opt/local/bin/ is where gs can be found.
And yet when I run preview-at-point, which apparently needs both latex and gs, I get
Preview-DviPS finished at Thu Dec 22 11:25:46
DviPS sentinel: Searching for program: No such file or directory, gs
which means that latex could be found all right, but not gs.
I am not sure whether setting exec-path is necessary, perhaps PATH is enough, but I've set it as a debugging measure.
Why can emacs not find gs even though the directory it's in is in both PATH and exec-path?
If you're setting $PATH inside your Emacs, you might well be on OS X. GUI applications are not started via your shell, so they see different environment variables.
Here's a trick which I use to ensure the $PATH inside Emacs is the same one I see if I fire up a terminal (but see "update" below):
(defun set-exec-path-from-shell-PATH ()
"Set up Emacs' `exec-path' and PATH environment variable to match that used by the user's shell.
This is particularly useful under Mac OSX, where GUI apps are not started from a shell."
(interactive)
(let ((path-from-shell (replace-regexp-in-string "[ \t\n]*$" "" (shell-command-to-string "$SHELL --login -i -c 'echo $PATH'"))))
(setenv "PATH" path-from-shell)
(setq exec-path (split-string path-from-shell path-separator))))
Then simply call the set-exec-path-from-shell-PATH function, perhaps from your Emacs init file. I keep that code on github, BTW.
Update: this code has now been improved and published as an elisp library called exec-path-from-shell; installable packages are available in MELPA.
Try replacing the second line with this:
(setq exec-path (append exec-path '("/usr/texbin" "/opt/local/bin")))
I hit a similar problem, but with a correct PATH, including trailing ´:´. It turned out the internal emacs shell program was missing, resulting in a ´Searching for program: No such file or directory´ message.
Fixed with
(setq shell-file-name "bash").
It appears you're missing a path separator : at the end of your path string.
I'm using python-mode 6.0.1 on OS X, emacs 23.3 (http://emacsformacosx.com/ version).
I'm trying to get C-c C-c to default to python 3.
I have the following in my .emacs:
(setq py-python-command "/usr/local/bin/python3")
And when I run C-h b py-python-command, it tells me the value is that (correctly).
However, running C-c C-c still opens 2.7.2.
I also tried adding:
(setq py-which-shell "/usr/local/bin/python3")
as suggested here: Both Python 2 and 3 in Emacs, but that doesn't change anything (py-which-shell does get changed, but it still launches 2.7.2).
Any ideas?
Try adding the following code to your Emacs init file:
(add-hook 'python-mode-hook
(lambda ()
(setq py-python-command "python3")
(setq py-default-interpreter "python3")))
py-default-interpreter for now is an alias only, delivered for backward compatibility
You might have encountered a bug.
Please file a report giving some example code at
https://bugs.launchpad.net/python-mode
Should the buffer code contain a shebang specifying pythonVERSION , than this takes precedence over default setting.
You may enforce executing buffer through specific pythonVERSION by calling
a command of class py-execute-buffer-pythonVERSION
See menu PyExec, entry Execute buffer ...
I am using Emacs 23.3.1 on windows 7. I know that I can run shell from emacs using M-x shell. I would like to have multiple shell windows in the same time, but typing M-x shell a second time just opens me the same shell window.
Is there a way to have different shell windows?
C-u M-x shell will do it.
It will prompt for a name for the new shell, just hit return for the default (which will be something like *shell*<2>.
Also works with eshell.
Another trick, if you use eshell: just as M-x eshell takes you back to *eshell* (rather than starting a new eshell), if you use a numeric prefix argument it will take you to that eshell buffer. For instance, C-3M-xeshell will take you to *eshell*<3>. Sadly if you use shell (rather than eshell), this trick doesn't seem to work (in my Emacs 24.0.50.1 at least.)
You can rename the buffer of your shell with M-x rename-buffer. Then you will be able to launch a second shell.
Look at MultiTerm, it makes managing multiple terminals in Emacs much easier.
After more than four years, I see that some people are still looking at this issue sometimes, so I will publish a quick function I wrote to load a shell and ask for its name. That way you can name a shell "sort-files" if it is dedicated to sorting files and another one "hive" if it's dedicated to run hive queries. I use that everyday now (on emacs 24):
(defun create-shell ()
"creates a shell with a given name"
(interactive);; "Prompt\n shell name:")
(let ((shell-name (read-string "shell name: " nil)))
(shell (concat "*" shell-name "*"))))
It might also be useful to use a screen-like interface to your shells. I've written my own, but there are others out there, like EmacsScreen.
This will autogenerate a new shell instance in whatever buffer you happen to be using; bind it to M-S or somethings like that and instant joy:
(defun new-shell ()
(interactive)
(let (
(currentbuf (get-buffer-window (current-buffer)))
(newbuf (generate-new-buffer-name "*shell*"))
)
(generate-new-buffer newbuf)
(set-window-dedicated-p currentbuf nil)
(set-window-buffer currentbuf newbuf)
(shell newbuf)
)
)
Many thanks to phils for recommending a rewrite using let, even though the result is even more awful parentheses...:\
This will open a new shell each time you invoke the function and rename it automatically if needed.
The added plus is if you are editing files remotely (dired/tramp...), this will open a shell on the remote host and rename it automatically with the remote hostname:
(defun ggshell (&optional buffer)
(interactive)
(let* (
(tramp-path (when (tramp-tramp-file-p default-directory)
(tramp-dissect-file-name default-directory)))
(host (tramp-file-name-real-host tramp-path))
(user (if (tramp-file-name-user tramp-path)
(format "%s#" (tramp-file-name-user tramp-path)) ""))
(new-buffer-nameA (format "*shell:%s*" host))
(new-buffer-nameB (generate-new-buffer-name new-buffer-nameA))
(currentbuf (get-buffer-window (current-buffer)))
)
(generate-new-buffer new-buffer-nameB)
(set-window-dedicated-p currentbuf nil)
(set-window-buffer currentbuf new-buffer-nameB)
(shell new-buffer-nameB)
))
I would like to see examples of how to setup perforce, using the config file functionality where emacs is used as the diff and merge programs (P4DIFF and P4MERGE settings). Even better if this is on Windows.
I'm also struggling with getting the P4EDITOR to work correctly when using emacsclientw, specifically specifying the alternate-editor functionality.
Any tips, suggestions, example configs are very welcome.
Here's a different trick I used to use. It adds a few command line options to emacs so that you can do diffs and merges in a new emacs instance (again using ediff).
;; -diff
(defun command-line-diff (switch)
(let ((file1 (pop command-line-args-left))
(file2 (pop command-line-args-left)))
(ediff file1 file2)))
(add-to-list 'command-switch-alist '("-diff" . command-line-diff))
;; -merge
(defun command-line-merge (switch)
(let ((base (pop command-line-args-left))
(sccs (pop command-line-args-left))
(mine (pop command-line-args-left))
(merg (pop command-line-args-left)))
(ediff-merge-with-ancestor sccs mine base () merg)))
(add-to-list 'command-switch-alist '("-merge" . command-line-merge))
Just put that in your .emacs file. Then you can set your P4DIFF program to be emacs -diff and your P4MERGE program to be emacs -merge.
I'm assuming you're already using p4.el.
Here's a function that will allow you to set your p4-client-config easily:
(defun p4-go (config)
(interactive
(list (read-file-name "P4 Config file: "
(concat (getenv "HOME") "/etc/perforce/")
""
t)))
(p4-set-client-config (expand-file-name config))
t)
Then I just run M-x p4-go <RET> conf <RET>.
My ~/etc/perforce/conf file looks like:
P4CLIENT=ewarmenhoven-ppd
P4PORT=perforce.netflix.com:1666
P4USER=ewarmenhoven
P4EDITOR=emacsclient
P4DIFF=diff -dupU8
P4MERGE=~/bin/emerge
The emerge merge program is just a short little shell script that calls emacsclient appropriately:
#!/bin/bash
base=$1
sccs=$2
mine=$3
merg=$4
emacsclient -e "(ediff-merge-files-with-ancestor \"$base\" \"$sccs\" \"$mine\" () \"$merg\")"
emacsclient "$merg"
If you're using cygwin it should work just fine.
For doing diffs, if it's running from the shell then I want the output in the shell, hence just using normal diff. If it's not, I use p4-ediff, which is bound to C-x p - by default.
The awesome answer by Eric doesn't work properly in latest emacs because of welcome screen. In order to hide the welcome screen (so that you may get the diff properly) please refer Unable to hide welcome screen in Emacs.
Another nifty setting which opens the diff in regular vertical mode is setting the below config variable
(custom-set-variables
;; custom-set-variables was added by Custom -- don't edit or cut/paste it!
;; Your init file should contain only one such instance.
'(ediff-split-window-function (quote split-window-horizontally)))