Re: py-execute-region temporary buffers

[Michael Albinus]

Paul Northug <address@hidden> writes:

> I am using ipython shell through tramp through multi-hop ssh. It works
> very well (thank you developers!)
>
> I am missing the py-execute-region functionality. When I mark a region
> and do C-c |, a temporary local file of the region is created that is
> passed on to the running python interpreter and executed. Through
> tramp, a local file is created rather than a remote file and the
> remote python shell complains for example:
>
> IOError: [Errno 2] No such file or directory:
> '/var/folders/0l/rbzbq01d1yz3ysh8dbhgrl5h0000gn/T/python-35908Jta.py'
>
> I was wondering if this functionality could be added somehow.

First, I have no experience with python/ipython at all.

Looking at python.el from Emacs 24.0.90, the following change might do
the trick:

--8<---------------cut here---------------start------------->8---
*** /home/albinus/src/emacs/lisp/progmodes/python.el.~105925~   2011-09-26 
22:09:16.993851430 +0200
--- /home/albinus/src/emacs/lisp/progmodes/python.el    2011-09-26 
22:09:03.783832044 +0200
***************
*** 1616,1622 ****
    ;; Fixme: Write a `coding' header to the temp file if the region is
    ;; non-ASCII.
    (interactive "r")
!   (let* ((f (make-temp-file "py"))
         (command
            ;; IPython puts the FakeModule module into __main__ so
            ;; emacs.eexecfile becomes useless.
--- 1616,1622 ----
    ;; Fixme: Write a `coding' header to the temp file if the region is
    ;; non-ASCII.
    (interactive "r")
!   (let* ((f (concat (file-remote-p default-directory) (make-temp-file "py")))
         (command
            ;; IPython puts the FakeModule module into __main__ so
            ;; emacs.eexecfile becomes useless.
--8<---------------cut here---------------end--------------->8---

However, this could not be a final solution. make-temp-file should be
enhanced to work also on remote hosts, checking for the existence of a
temporary file etc.

If you use python-mode.el, it might be sufficient to customize
py-temp-directory.

Best regards, Michael.