使用 SublimREPL 插件更改用于评估文件的 Python 版本

Question

我在 Mac OS X El Capitan 上使用 Sublim Text 3。我需要做的是在 Sublime Text 3 中评估一个 Python 文件。

我已经安装了Package Control 和SublimREPL 插件。

为了在屏幕的第二部分显示 Python 解释器，我设置了 2 行布局 (View > Layout > Rows: 2)。

然后我使用 Tools > Command Palette... > SublimeREPL: Python 启动 Python 解释器。

解释器正确启动，我明白了：

我找不到如何从手动下载的 Python 3.5 开始（因此安装在 /usr/local/bin/ 中）。我已尝试修改此文件：/Library/Application Support/Sublime Text 3/Packages/SublimeREPL/Config/Python/Main.sublime-menu 遵循this post 指令，但这并没有改变任何东西（Python 2.7.10 仍然启动）。

这是我Main.sublime-menu的内容：

[
     {
        "id": "tools",
        "children":
        [{
            "caption": "SublimeREPL",
            "mnemonic": "R",
            "id": "SublimeREPL",
            "children":
            [
                {"caption": "Python",
                "id": "Python",

                 "children":[
                    {"command": "repl_open",
                     "caption": "Python",
                     "id": "repl_python",
                     "mnemonic": "P",
                     "args": {
                        "type": "subprocess",
                        "encoding": "utf8",
                        "cmd": ["python", "-i", "-u"],
                        "cwd": "$file_path",
                        "syntax": "Packages/Python/Python.tmLanguage",
                        "external_id": "python",
                        "extend_env": {"PYTHONIOENCODING": "utf-8"}
                        }
                    },
                    {"command": "python_virtualenv_repl",
                     "id": "python_virtualenv_repl",
                     "caption": "Python - virtualenv"},
                    {"command": "repl_open",
                     "caption": "Python - PDB current file",
                     "id": "repl_python_pdb",
                     "mnemonic": "D",
                     "args": {
                        "type": "subprocess",
                        "encoding": "utf8",
                        "cmd": ["python", "-i", "-u", "-m", "pdb", "$file_basename"],
                        "cwd": "$file_path",
                        "syntax": "Packages/Python/Python.tmLanguage",
                        "external_id": "python",
                        "extend_env": {"PYTHONIOENCODING": "utf-8"}
                        }
                    },
                    {"command": "repl_open",
                     "caption": "Python - RUN current file",
                     "id": "repl_python_run",
                     "mnemonic": "R",
                     "args": {
                        "type": "subprocess",
                        "encoding": "utf8",
                        "cmd": ["python", "-u", "$file_basename"],
                        "cwd": "$file_path",
                        "syntax": "Packages/Python/Python.tmLanguage",
                        "external_id": "python",
                        "extend_env": {"PYTHONIOENCODING": "utf-8"}
                        }
                    },
                    {"command": "repl_open",
                     "caption": "Python - IPython",
                     "id": "repl_python_ipython",
                     "mnemonic": "I",
                     "args": {
                        "type": "subprocess",
                        "encoding": "utf8",
                        "autocomplete_server": true,
                        "cmd": {
                            "osx": ["python", "-u", "${packages}/SublimeREPL/config/Python/ipy_repl.py"],
                            "linux": ["python", "-u", "${packages}/SublimeREPL/config/Python/ipy_repl.py"],
                            "windows": ["python", "-u", "${packages}/SublimeREPL/config/Python/ipy_repl.py"]
                        },
                        "cwd": "$file_path",
                        "syntax": "Packages/Python/Python.tmLanguage",
                        "external_id": "python",
                        "extend_env": {
                            "PYTHONIOENCODING": "utf-8",
                            "SUBLIMEREPL_EDITOR": "$editor"
                        }
                    }
                    }
                ]}
            ]
        }]
    }
]

仍然遵循this post的建议，我修改了下面的部分代码，但在文件夹/usr/local/bin/中找不到任何exe文件：

{"command": "repl_open",
"caption": "Python - PDB current file",
"id": "repl_python_pdb",
"mnemonic": "D",
"args": {
    "type": "subprocess",
    "encoding": "utf8",
    "cmd": ["/usr/local/bin/python3", "-i", "-u", "-m", "pdb", "$file_basename"],
    "cwd": "$file_path",
    "syntax": "Packages/Python/Python.tmLanguage",
    "external_id": "python",
    "extend_env": {"PYTHONIOENCODING": "utf-8"}
    }
}

当我按Ctrl + , + f（根据doc）时，解释器仍以 Python 2.7.10 开始。

Answer 1

您似乎正在修改不正确的配置文件，并且可能有一些问题导致了问题。

然后我使用 Tools > Command Palette... > SublimeREPL: Python 启动 Python 解释器

没有命令调色板项目“SublimeREPL：Python”，所以我假设你的意思是Tools > SublimeREPL > Python > Python。这将在一个选项卡中打开，如下所示：

# *REPL* [python]
Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 

事实上，Tools > SublimeREPL > Python 显示的菜单类似于以下内容：

Python - execnet
Python
Python - virtualen
Python - PDB current file
Python - RUN current file
Python - IPython

到目前为止一切顺利。但是如何更改 Python 版本呢？

理想情况下，我们可以配置要使用的全局 python（这似乎不可能）或向上面描述的菜单添加版本变体（这似乎也不可能）。

最直接的解决方法是添加自定义版本变体。

创建一个名为Packages/User/Menu.sublime-menu 的文件（如果它不存在）。通过Menu > Preferences > Browse Packages... 找到用户包目录）。并在该文件中创建您的菜单。此菜单将添加到现有菜单中。

例如：

Packages/User/Menu.sublime-menu

[
    {
        "id": "tools",
        "children":
        [{
            "caption": "SublimeREPL Variants",
            "id": "SublimeREPLVariants",
            "children":
            [
                {
                    "command": "repl_open",
                    "caption": "Python - PDB current file",
                    "id": "repl_python_pdb",
                    "mnemonic": "D",
                    "args": {
                        "type": "subprocess",
                        "encoding": "utf8",
                        "cmd": ["/usr/bin/python3", "-i", "-u", "-m", "pdb", "$file_basename"],
                        "cwd": "$file_path",
                        "syntax": "Packages/Python/Python.tmLanguage",
                        "external_id": "python",
                        "extend_env": {"PYTHONIOENCODING": "utf-8"}
                    }
                }
            ]
        }]
    }
]

重要的是：

1. 标题和 ID 与任何其他菜单都不相同，否则它将替换其他菜单，因此我将上面的菜单命名为“SublimeREPL Variants”。

2. “cmd”使用有效二进制文件的绝对路径。您可以使用which 之类的命令检查您使用的路径是否正确：

   通过以下方式查找 Python 的位置：

   $ which python
   /usr/bin/python
   
   $ which python3
   /usr/bin/python3
   
   $ which python2
   /usr/bin/python2
   

   有关更多详细信息，另请参阅Possible to switch between python 2 and 3 in Sublime Text 3 build systems? (Windows)。