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Full Python Scripting in Vim

Python 97.56% Vim Script 2.44%

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How to define a vim command?

I can't find how to define a vim command in docs.
codes should like following

@vim_command("reverse")
def reverse():
    replace_word(get_word()[::-1])

and reverse() invokes when I run :reverse.

SetuptoolsDeprecationWarning is shown at importing virtualenv in plugin_loader.py

When I updated setuptools to 61.2.0, this error is shown every time I start vim.
I figured out it was because the command import virtualenv caused this warning message.

Error detected while processing function LoadSnake:
line    9:
/home/myuser/.local/lib/python3.8/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other
standards-based tools.
  warnings.warn(
Press ENTER or type command to continue

Other message is also shown but I didn't figure out where it was caused.

/home/myuser/.local/lib/python3.8/site-packages/_distutils_hack/__init__.py:30: UserWarning: Setuptools is replacing distutils.
  warnings.warn("Setuptools is replacing distutils.")

For now, I inserted warning filter like below.

import warnings
warnings.filterwarnings("ignore")

Possibility to choose version of Python to use

Despite having python3 support added in 29707b2, there is still a hardcoded preference for python2. I fail to see how this behavior can be useful.

Since I don't see you making a preference for python3 instead (I would love that, of course, just as I would love to magically see the world completely forget python2 in an instant, but I suppose that's not gonna happen), I would like to see at least a switch implemented somewhere.

How can I insert an code snippet in file?

for example i map this to insert an code snippet:
@key_map("coco")
def cocoCreate():
#in this function how insert code in File?

Map commands to Python functions feature.

I wanted a way to call Python functions through vim commands, and I have wrote one helper function in my .vimrc.py,

def command_map(command, nargs="*"):
    def decorator(func):
        def wrapper(*args):
            args = snake.vim.eval("a:000")
            return func(*args)

        wrapper_func = snake.register_fn(wrapper)
        function_name = f"Snake_{func.__name__}"
        snake.command(
            f"""
            function! {function_name}(...)
                :{snake.PYTHON_CMD} {wrapper_func}
            endfunction
            """
        )
        snake.command(
            f"command! -nargs={nargs} {command} call {function_name}(<f-args>)"
        )
        return wrapper

    return decorator


@command_map("Pwf")
def copy_current_file_path(*args, **kwargs):
    current_buffer = snake.vim.current.buffer
    if current_buffer.name is None:
        snake_echo("No file loaded in current buffer")
    else:
        pyperclip.copy(current_buffer.name)
        snake_echo(current_buffer.name)

Do you think this feature could get into the core? I would like to contribute with a PR if you wish.

Have a way for key_map to not mess with visual selection

I tried to implement a custom text object, but couldn't use key_map for the vmode part, as it always messes with the visual mode selection. It would be could if there was a keyword argument to disable the special vmode handling.

Additional decorators - events and opfuncs

just as there is a key_map decorator it would be great if there was a decorator for things like:

:autocmd CursorMoved * call MyPythonFunc()

Is that feasible?

Replace visual block selection

Replacing contents in visual block selection mode is not working as expected when returning contents from a function decorated with @snake.visual_key_map.

Example,
.vimrc.py

import snake

def _try_int(text):
    try:
        val = int(text)
        return val
    except ValueError:
        return 0

def format_numbers(numbers):
    max_number = max(numbers)
    no_of_digits_in_max_no = len(str(max_number))
    format_string = '%{}d'.format(no_of_digits_in_max_no)
    return [format_string % no for no in numbers]

@snake.visual_key_map("<leader>fmt")
def align_numbers(selected_snippet):
    selected_numbers = selected_snippet.split('\n')
    numbers = [_try_int(no) for no in selected_numbers]
    return '\n'.join(format_numbers(numbers))

Given file:

Score: 1
Score: 2
Score: 3
Score: 4
Score: 5
Score: 6
Score: 7
Score: 8
Score: 9
Score: 10
Score: 100

After selecting the number block and pressing <leader>fmt
Result:

Score:  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
100 
Score: 
Score: 
Score: 
Score: 
Score: 
Score: 
Score: 
Score: 
Score: 
Score:

Expected:

Score:   1
Score:   2
Score:   3
Score:   4
Score:   5
Score:   6
Score:   7
Score:   8
Score:   9
Score:  10
Score: 100

Gif for demonstration:
Result:

Expected:

error when start vim

my python version is 2.6.6

Compare to Vim’s built-in Python scripting support

Vim already has built-in support for Python scripting, when compiled with the +python feature. People who find this repository might not know that. You should mention it so that people know what the options are, and describe the differences.

I presume that these are some differences:

Snake requires an external python program to be installed, while built-in support requires Vim to be compiled with +python. Each prerequisite might be easier to satisfy on some systems and harder on others.
Snake provides a different (better?) Python API from the built-in Python API.

If you didn’t know about Vim’s built-in Python support, here is a good tutorial. And here is an example script:

`insertbuffername.vim`

if !has('python')
    finish
endif

function! InsertBufferName()
    pyfile insertbuffername.py
endfunc

command! InsertBufferName call InsertBufferName()

`insertbuffername.py`

def normal(str):
    vim.command("normal! "+str)

buffer = vim.current.buffer
normal("i" + buffer.name)

travis failing

https://travis-ci.org/amoffat/snake/builds/62934759

Can't reproduce this failure locally using same version of Vim and Python. Any help would definitely be appreciated

11.22s$ python tests.py
...........F.........FE......
======================================================================
ERROR: test_let (__main__.VariableTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "tests.py", line 398, in test_let
    self.assertEqual(output["original"], None)
TypeError: 'NoneType' object has no attribute '__getitem__'
======================================================================
FAIL: test_abbrev_fn (__main__.Tests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "tests.py", line 173, in test_abbrev_fn
    self.assertEqual(changed, "1 2\n")
AssertionError: u'\n' != '1 2\n'
======================================================================
FAIL: test_set_buffer_contents (__main__.Tests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "tests.py", line 150, in test_set_buffer_contents
    self.assertEqual(changed, "new stuff")
AssertionError: u'The quick brown fox jumps over the lazy dog' != 'new stuff'
----------------------------------------------------------------------
Ran 29 tests in 11.116s
FAILED (failures=2, errors=1)

Tests hang on my machine

vim version 7.4
sh is installed

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.3 LTS
Release:    14.04
Codename:   trusty

output:

https://gist.github.com/averagehat/32afe838aff91af2d5c3

1337 stars!

Ok, so I created 1337repos and randomly visited it today.

I saw snake and I guess deep down I wished it was related to Metal Gear. I was not disappointed.

The gif, the jokes, the references, everything!

Good work and good luck with this awesome tool. I hope you all the best.

also, sorry for spam/non-issue

Expression invalide : mapleader

After install i tryed the <leader>r code from the readme file, when i type \r i get this error:

Erreur détectée en traitant  :                                                                                                                        
E121: Variable non définie : mapleader
E15: Expression invalide : mapleader
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/user/.vim/bundle/snake/plugin/snake/__init__.py", line 54, in dispatch_mapped_function
    return fn()
  File "/home/user/.vimrc.py", line 5, in reverse
    replace_word(get_word()[::-1])
  File "/home/user/.vim/bundle/snake/plugin/snake/__init__.py", line 211, in wrapper
    return fn(*args, **kwargs)
  File "/home/user/.vim/bundle/snake/plugin/snake/__init__.py", line 334, in get_word
    keys("yiw")
  File "/home/user/.vim/bundle/snake/plugin/snake/__init__.py", line 313, in keys
    k = _LEADER_REGEX.sub(get_leader(), k)
  File "/home/user/.vim/bundle/snake/plugin/snake/__init__.py", line 304, in get_leader
    return vim.eval("mapleader")
vim.error: expression invalide

get_word fails when vim is using OS X clipboard via `set clipboard=unnamed`

set clipboard=unnamed makes vim play nice with OS X; however, it changes yank behavior such that vim isn't using the registers that get_register expects. I haven't come up with an alternative yet, so I'm hoping someone else has an idea (and hence, the ticket.)

U flag to open causing a python-3.11 failure, aka are you continuing snake?

Hey, I'm wondering if you are going to continue working on snake. I just upgraded to 3.11 and noticed that changes to open() (the "U" flag has gone away) is causing a failure:

Error invoking 'python_execute_file' on channel 3 (python3-script-host):
Traceback (most recent call last):
  File "/home/badger/.vim/pack/badger/start/snake/plugin/bootstrap.py", line 11, in <module>
    import snake
  File "/home/badger/.vim/pack/badger/start/snake/plugin/snake/__init__.py", line 737, in <module>
    from . import plugin_loader
  File "/home/badger/.vim/pack/badger/start/snake/plugin/snake/plugin_loader.py", line 215, in <module>

    import_source("vimrc", vimrc_path)
  File "/home/badger/.vim/pack/badger/start/snake/plugin/snake/plugin_loader.py", line 206, in import_s
ource
    h = open(path, desc[1])
        ^^^^^^^^^^^^^^^^^^^
ValueError: invalid mode: 'U'

If you're going to continue work on snake, I can look at opening a PR to omit the flag when we are using later python versions. There are other deprecations in the works, though (for instance, imp is deprecated) so I'll probably try porting my configs to lua if you don't have time to keep snake updated anymore.

Python 3 scripting?

it would be nice to have a knob to make snake use python 3 engine, or at least a separate branch with python 3 support (as in intelfx/snake@0085142).

Or, even better, make it use python 3 by default (sweet dreams of a legacy-free world).

amoffat / snake Goto Github PK

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