内置python模式中C-M-x
,a.k.a。python-shell-send-defun
似乎存在一个非常重要的错误
test.py
C-c C-p
至run-python
在test.py
缓冲区中,输入一些简单的函数,如
def f(x):
return x+1
C-M-x
python-shell-send-defun
我们得到:
return x+1
SyntaxError: 'return' outside function
所以这里发生的是python-shell-send-defun
只发送一行,而不是我们期望的两行(例如,emacs lisp主模式中的相应命令在发送整个多行defun之前正常工作光标)。这里发生了什么?我在Mac OS的emacs 25 gui版本以及Ubuntu的emacs 24中测试了这个。两者都表现出相同的错误。
这是一个错误,还是我误解了python-shell-send-defun
实际上做了什么?
更新:通过一些进一步的测试,似乎只有在第一行开始的函数才会出现此错误。如果我们在def f(x):
上方插入一个空行,C-M-x
就可以正常工作。
答案 0 :(得分:0)
是的,这看起来像一个bug,应该报告为一个。应该重写该函数以进行如下检查
(defun python-shell-send-defun (&optional arg msg)
"Send the current defun to inferior Python process.
When argument ARG is non-nil do not include decorators. When
optional argument MSG is non-nil, forces display of a
user-friendly message if there's no process running; defaults to
t when called interactively."
(interactive (list current-prefix-arg t))
(save-excursion
(python-shell-send-region
(progn
(end-of-line 1)
(while (and (or (python-nav-beginning-of-defun)
(beginning-of-line 1))
(> (current-indentation) 0)))
(when (not arg)
(while (and (forward-line -1)
(looking-at (python-rx decorator))))
;; add a check here to see if we are on the first line
(and (not (bobp)) (forward-line 1)))
(point-marker))
(progn
(or (python-nav-end-of-defun)
(end-of-line 1))
(point-marker))
nil ;; noop
msg)))