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bug#25753: 25.2; Python mode shell interaction not working 100%
From: |
Live System User |
Subject: |
bug#25753: 25.2; Python mode shell interaction not working 100% |
Date: |
Sun, 19 Feb 2017 16:32:17 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) |
Noam Postavsky <npostavs@users.sourceforge.net> writes:
> On Sun, Feb 19, 2017 at 2:39 PM, Live System User <nyc4bos@aol.com> wrote:
>>>
>>> Do you see this with 25.2-rc1 on GNU/Linux though?
>>
>> Fedora doesn't have that version available currently.
>
> Can you try it after M-x load-library python RET and then evaluate
> this new definition of python-shell-completion-native-try:
>
> (defun python-shell-completion-native-try ()
> "Return non-nil if can trigger native completion."
> (let ((python-shell-completion-native-enable t)
> (python-shell-completion-native-output-timeout
> python-shell-completion-native-try-output-timeout))
> (python-shell-completion-native-get-completions
> (get-buffer-process (current-buffer))
> nil "_")))
I was already using that (wrapped in a "with-eval-after-load
'python") from:
https://github.com/jorgenschaefer/elpy/issues/887#issuecomment-275175119
to no avail.
>
>>
>> I did, however, look into the Python modules having to do with
>> "readline"(completion).
>>
>> I discovered that if I used the "readline" from "pyrepl.py"instead
>> of the standard default one, then even though that warning still
>> occured in a *Warning* buffer in Emacs, I never saw it -- I just
>> saw the *Python* buffer and my source buffer, as expected.
>
> I'm not sure what "pyrepl" is or to "use" it, but just looking at web
> search results, it seems to be connected to pypy, which is in the list
> of python-shell-completion-native-disabled-interpreters, could that be
> related?
Not really but it makes allowances on whether or not pypy.py is
currently loaded.
Here is an important piece of pyrepl that appears to be revelent
to how it deals with input and output from terminals (TTYs) and
non-terminals:
if '__pypy__' in sys.builtin_module_names: # PyPy
def _old_raw_input(prompt=''):
# sys.__raw_input__() is only called when stdin and stdout are
# as expected and are ttys. If it is the case, then get_reader()
# should not really fail in _wrapper.raw_input(). If it still
# does, then we will just cancel the redirection and call again
# the built-in raw_input().
try:
del sys.__raw_input__
except AttributeError:
pass
return raw_input(prompt)
sys.__raw_input__ = _wrapper.raw_input
else:
# this is not really what readline.c does. Better than nothing I guess
import __builtin__
_old_raw_input = __builtin__.raw_input
__builtin__.raw_input = _wrapper.raw_input
_old_raw_input = None
I think that this related in the fact that the Emacs interaction is
not with a real TTY (it doesn't have defined or tigetstr-retrievable
terminal capabilities (curses) like how to do operations like "clear",
"cup" or "horizontal" positioning).
Thanks.
- bug#25753: 25.2; Python mode shell interaction not working 100%, Charles A. Roelli, 2017/02/16
- bug#25753: 25.2; Python mode shell interaction not working 100%, Eli Zaretskii, 2017/02/16
- bug#25753: 25.2; Python mode shell interaction not working 100%, npostavs, 2017/02/18
- bug#25753: 25.2; Python mode shell interaction not working 100%, Live System User, 2017/02/19
- bug#25753: 25.2; Python mode shell interaction not working 100%, Noam Postavsky, 2017/02/19
- bug#25753: 25.2; Python mode shell interaction not working 100%, Live System User, 2017/02/19
- bug#25753: 25.2; Python mode shell interaction not working 100%, Noam Postavsky, 2017/02/19
- bug#25753: 25.2; Python mode shell interaction not working 100%,
Live System User <=
- bug#25753: 25.2; Python mode shell interaction not working 100%, npostavs, 2017/02/19
- bug#25753: 25.2; Python mode shell interaction not working 100%, Live System User, 2017/02/20
- bug#25753: 25.2; Python mode shell interaction not working 100%, npostavs, 2017/02/20
- bug#25753: 25.2; Python mode shell interaction not working 100%, Live System User, 2017/02/20
- bug#25753: 25.2; Python mode shell interaction not working 100%, npostavs, 2017/02/21
- bug#25753: 25.2; Python mode shell interaction not working 100%, Live System User, 2017/02/21
- bug#25753: 25.2; Python mode shell interaction not working 100%, npostavs, 2017/02/21
- bug#25753: 25.2; Python mode shell interaction not working 100%, Charles A. Roelli, 2017/02/22
- bug#25753: 25.2; Python mode shell interaction not working 100%, npostavs, 2017/02/23
- bug#25753: 25.2; Python mode shell interaction not working 100%, Charles A. Roelli, 2017/02/24