Wording, comma and case changes (VIM->Vim) for dev/env.

Tried to normalize with no Oxford commas.

docs/dev/env.rst

@@ -5,15 +5,15 @@ Your Development Environment
 Text Editors
 ::::::::::::
 
-Just about anything which can edit plain text will work for writing Python code,
+Just about anything that can edit plain text will work for writing Python code,
 however, using a more powerful editor may make your life a bit easier.
 
 
-VIM
+Vim
 ---
 
 Vim is a text editor which uses keyboard shortcuts for editing instead of menus
-or icons. There exist a couple of plugins and settings for the VIM editor to
+or icons. There are a couple of plugins and settings for the Vim editor to
 aid Python development. If you only develop in Python, a good start is to set
 the default settings for indentation and line-wrapping to values compliant with
 :pep:`8`. In your home directory, open a file called :file:`.vimrc` and add the
@@ -21,24 +21,24 @@ following lines::
 
     set textwidth=79  " lines longer than 79 columns will be broken
     set shiftwidth=4  " operation >> indents 4 columns; << unindents 4 columns
-    set tabstop=4     " an hard TAB displays as 4 columns
+    set tabstop=4     " a hard TAB displays as 4 columns
     set expandtab     " insert spaces when hitting TABs
     set softtabstop=4 " insert/delete 4 spaces when hitting a TAB/BACKSPACE
     set shiftround    " round indent to multiple of 'shiftwidth'
     set autoindent    " align the new line indent with the previous line
 
 With these settings, newlines are inserted after 79 characters and indentation
-is set to 4 spaces per tab. If you also use VIM for other languages, there is a
+is set to 4 spaces per tab. If you also use Vim for other languages, there is a
-handy plugin at indent_, which handles indentation settings for Python source
+handy plugin called indent_, which handles indentation settings for Python source
 files.
 
-There is also a handy syntax plugin at syntax_ featuring some improvements over
+There is also a handy syntax plugin called syntax_ featuring some improvements over
-the syntax file included in VIM 6.1.
+the syntax file included in Vim 6.1.
 
 These plugins supply you with a basic environment for developing in Python.
 To get the most out of Vim, you should continually check your code for syntax
 errors and PEP8 compliance. Luckily PEP8_ and Pyflakes_ will do this for you.
-If your VIM is compiled with :option:`+python` you can also utilize some very handy
+If your Vim is compiled with :option:`+python` you can also utilize some very handy
 plugins to do these checks from within the editor.
 
 For PEP8 checking, install the vim-pep8_ plugin, and for pyflakes you can
@@ -51,7 +51,7 @@ order to do this, add the following lines to your :file:`.vimrc`::
     autocmd BufWritePost *.py call Pyflakes()
     autocmd BufWritePost *.py call Pep8()
 
-If you are already using syntastic_ you can enable it to run Pyflakes on write
+If you are already using syntastic_, you can tell it to run Pyflakes on write
 and show errors and warnings in the quickfix window. An example configuration
 to do that which also shows status and warning messages in the statusbar would be::
 
@@ -61,24 +61,26 @@ to do that which also shows status and warning messages in the statusbar would b
     let g:syntastic_auto_loc_list=1
     let g:syntastic_loc_list_height=5
 
+
 Python-mode
 ^^^^^^^^^^^
 
-Python-mode_ is a complex solution in VIM for working with Python code.
+Python-mode_ is a complex solution for working with Python code in Vim.
 It has:
 
 - Asynchronous Python code checking (``pylint``, ``pyflakes``, ``pep8``, ``mccabe``) in any combination
 - Code refactoring and autocompletion with Rope
 - Fast Python folding
 - Virtualenv support
-- Search by Python documentation and run Python code
+- Search through Python documentation and run Python code
 - Auto PEP8_ error fixes
 
 And more.
 
 SuperTab
 ^^^^^^^^
-SuperTab_ is a small VIM plugin that makes code completion more convenient by
+
+SuperTab_ is a small Vim plugin that makes code completion more convenient by
 using ``<Tab>`` key or any other customized keys.
 
 .. _indent: http://www.vim.org/scripts/script.php?script_id=974
@@ -94,9 +96,9 @@ using ``<Tab>`` key or any other customized keys.
 Emacs
 -----
 
-Emacs is a powerful text editor. It's fully programmable (lisp), but
+Emacs is another powerful text editor. It is fully programmable (lisp), but
-it can be some work to wire up correctly. A good start if you're
+it can be some work to wire up correctly. A good start if you're already an
-already an Emacs user is `Python Programming in Emacs`_ at EmacsWiki.
+Emacs user is `Python Programming in Emacs`_ at EmacsWiki.
 
 1. Emacs itself comes with a Python mode.
 2. Python ships with an alternate version:
@@ -155,18 +157,18 @@ Spyder
 
 `Spyder <http://code.google.com/p/spyderlib/>`_ is an IDE specifically geared
 toward working with scientific Python libraries (namely `Scipy <http://www.scipy.org/>`_).
-It includes integration with pyflakes_, `pylint <http://www.logilab.org/857>`_,
+It includes integration with pyflakes_, `pylint <http://www.logilab.org/857>`_
 and `rope <http://rope.sourceforge.net/>`_.
 
 Spyder is open-source (free), offers code completion, syntax highlighting,
-class and function browser, and object inspection.
+a class and function browser and object inspection.
 
 
 WingIDE
 -------
 
 `WingIDE <http://wingware.com/>`_ is a Python specific IDE. It runs on Linux,
-Windows, and Mac (as an X11 application, which frustrates some Mac users).
+Windows and Mac (as an X11 application, which frustrates some Mac users).
 
 WingIDE offers code completion, syntax highlighting, source browser, graphical
 debugger and support for version control systems.
@@ -196,8 +198,9 @@ It solves the "Project X depends on version 1.x but, Project Y needs 4.x"
 dilemma, and keeps your global site-packages directory clean and manageable.
 
 `virtualenv <http://www.virtualenv.org/en/latest/index.html>`_ creates
-a folder which contains all the necessary executables to contain the
+a folder which contains all the necessary executables to use the
-packages that a Python project would need. An example workflow is given.
+packages that a Python project would need. An example workflow is given
+below.
 
 Install virtualenv:
 
@@ -259,7 +262,7 @@ the current state of the environment packages. To do this, run
 
 This will create a :file:`requirements.txt` file, which contains a simple
 list of all the packages in the current environment, and their respective
-versions. Later, when a different developer (or you, if you need to re-
+versions. Later, a different developer (or you, if you need to re-
 create the environment) can install the same packages, with the same
 versions by running
 
@@ -291,8 +294,8 @@ Put this into your :file:`~/.bash_profile` (Linux/Mac) file:
     $ export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'
 
 This will prevent your virtualenvs from relying on your (global) site packages
-directory, so that they are completely separate..
+directory, so that they are completely separate.
-[note: This is the default behavior for ``virtualenv`` 1.7 and later]
+[Note: This is the default behavior for ``virtualenv`` 1.7 and later]
 
 Other Tools
 :::::::::::