Fixes: debbugs:18595
* lisp/progmodes/python.el (python-shell-unbuffered): New var.
(python-shell-calculate-process-environment): Use it.
* test/automated/python-tests.el
(python-shell-calculate-process-environment-4)
(python-shell-calculate-process-environment-5): New tests.
(python-shell-make-comint-3): Use file-equal-p.
(python-shell-get-or-create-process-1)
(python-shell-get-or-create-process-2)
(python-shell-get-or-create-process-3): Fix interpreter for
Windows.
from python-shell-parse-command. Cleanup.
(run-python, run-python-internal): Use it.
(python-shell-calculate-pythonpath): Rename from
python-new-pythonpath.
(python-shell-calculate-process-environment): Use it.
(python-shell-calculate-exec-path): Add comment.
* test/automated/python-tests.el
(python-shell-calculate-process-environment-2): Fix test.
(python-shell-calculate-process-environment-1)
(python-shell-calculate-process-environment-3): Cleanup.
Fixes: debbugs:18843
* lisp/progmodes/python.el (python-indent-region): Use
python-indent-line and skip special cases.
* test/automated/python-tests.el (python-indent-region-1)
(python-indent-region-2, python-indent-region-3)
(python-indent-region-4, python-indent-region-5): New tests.
* progmodes/python.el (python-shell-font-lock-kill-buffer):
(python-shell-font-lock-with-font-lock-buffer)
(python-shell-get-buffer, python-ffap-module-path): Use
`derived-mode-p' instead of equality test on `major-mode'.
* lisp/progmodes/python.el (python-shell-virtualenv-root): Rename from
python-shell-virtualenv-path.
(python-shell-internal-get-process-name)
(python-shell-calculate-process-environment)
(python-shell-calculate-exec-path): Use it.
(python-shell-completion-pdb-string-code): Make obsolete.
(python-shell-completion-get-completions): Use
python-shell-completion-string-code resending setup code
continuously for (i)pdb.
(python-shell-completion-get-completions): Detect and send import
statements directly to completion function.
(python-shell-completion-at-point): Simplify prompt calculation
and import vs input completion logic.
* lisp/progmodes/python.el
(python-shell-completion-at-point): Rename from
python-shell-completion-complete-at-point.
(inferior-python-mode): Use it.
(python-completion-at-point): Rename from
python-completion-complete-at-point. Parse input up to first
backward occurrence of whitespace, open-paren, close-paren or
string delimiter.
(python-mode): Use it.
Fixes: debbugs:18084
(python-shell-with-shell-buffer): New macro.
(python-shell-font-lock-get-or-create-buffer)
(python-shell-font-lock-kill-buffer)
(python-shell-font-lock-with-font-lock-buffer)
(python-shell-font-lock-cleanup-buffer)
(python-shell-font-lock-toggle): Use it.
(python-shell-font-lock-turn-on)
(python-shell-font-lock-turn-off): Use it. Make command.
* lisp/progmodes/python.el (inferior-python-mode): Call
accept-process-output and sit-for to ensure all output for process
has been received before running hooks.
(python-shell-internal-get-or-create-process): Cleanup
accept-process-output and sit-for calls.
* lisp/progmodes/python.el (python-shell-make-comint): Remove
accept-process-output call.
(python-shell-get-buffer): Return current buffer if major-mode is
inferior-python-mode.
(python-shell-get-or-create-process): Use it.
(python-shell-send-setup-code): Send all setup code in one string,
output success message and accept-process-output.
* lisp/progmodes/python.el
(python-indent-shift-left): Use user-error instead.
(python-shell-prompt-detect): Use lwarn with python group.
(python-completion-complete-at-point)
(python-eldoc--get-doc-at-point): Don't signal error.
Fixes: debbugs:18067
* lisp/progmodes/python.el (python-shell--package-depth): New var.
(python-shell-package-enable): New command.
(python-util-list-directories, python-util-list-files)
(python-util-list-packages): New functions.
Fixes: debbugs:13570
* lisp/progmodes/python.el:
(python-comint-output-filter-function): Make obsolete.
(python-comint-postoutput-scroll-to-bottom): New function.
(inferior-python-mode): Set comint-output-filter-functions to a
minimum.
Fixes: debbugs:16875
