Updating docs to state python3 support!

README.md

@@ -203,10 +203,10 @@ that are conservatively turned off by default that you may want to turn on.
 Please refer to the full Installation Guide below; the following commands are
 provided on a best-effort basis and may not work for you.
 
-Make sure you have Vim 7.3.598 with python2 support. Ubuntu 14.04 and later have
-a Vim that's recent enough. You can see the version of Vim installed by running
-`vim --version`. If the version is too old, you may need to [compile Vim
-from source][vim-build] (don't worry, it's easy).
+Make sure you have Vim 7.3.598 with python2 or python3 support. Ubuntu 14.04 and
+later have a Vim that's recent enough. You can see the version of Vim installed
+by running `vim --version`. If the version is too old, you may need to [compile
+Vim from source][vim-build] (don't worry, it's easy).
 
 Install YouCompleteMe with [Vundle][].
 
@@ -261,10 +261,10 @@ that are conservatively turned off by default that you may want to turn on.
 Please refer to the full Installation Guide below; the following commands are
 provided on a best-effort basis and may not work for you.
 
-Make sure you have Vim 7.3.598 with python2 support. Fedora 21 and later have
-a Vim that's recent enough. You can see the version of Vim installed by running
-`vim --version`. If the version is too old, you may need to [compile Vim
-from source][vim-build] (don't worry, it's easy).
+Make sure you have Vim 7.3.598 with python2 or python3 support. Fedora 21 and
+later have a Vim that's recent enough. You can see the version of Vim installed
+by running `vim --version`. If the version is too old, you may need to [compile
+Vim from source][vim-build] (don't worry, it's easy).
 
 Install YouCompleteMe with [Vundle][].
 
@@ -322,11 +322,11 @@ provided on a best-effort basis and may not work for you.
 **Important:** we assume that you are using the `cmd.exe` command prompt and
 that you know how to add an executable to the PATH environment variable.
 
-Make sure you have at least Vim 7.3.598 with python2 support. You can check the
-version by typing `:version` inside Vim. Take note of the Vim architecture, i.e.
-32 or 64-bit. It will be important when choosing the python2 installer. We
-recommend using a 64-bit client. Don't worry, [a frequently updated copy of
-64-bit Vim][vim64-win-download] is available.
+Make sure you have at least Vim 7.3.598 with python2 or python3 support. You can
+check the version by typing `:version` inside Vim. Take note of the Vim
+architecture, i.e.  32 or 64-bit. It will be important when choosing the python2
+installer. We recommend using a 64-bit client. Don't worry, [a frequently
+updated copy of 64-bit Vim][vim64-win-download] is available.
 
 Install YouCompleteMe with [Vundle][].
 
@@ -337,7 +337,7 @@ process.
 
 Download and install the following software:
 
-- [python2][python-win-download]. Be sure to pick the version corresponding to
+- [python3][python-win-download]. Be sure to pick the version corresponding to
 your Vim architecture. It is _Windows x86-64 MSI installer_ if you are using the
 Vim previously linked.
 - [CMake][cmake-download]. Add CMake executable to the PATH environment
@@ -395,7 +395,7 @@ Please refer to the full Installation Guide below; the following commands are
 provided on a best-effort basis and may not work for you. OpenBSD / FreeBSD are
 not officially supported platforms by YCM.
 
-Make sure you have Vim 7.3.598 with python2 support.
+Make sure you have Vim 7.3.598 with python2 or python3 support.
 
 OpenBSD 5.5 and later have a Vim that's recent enough. You can see the version of
 Vim installed by running `vim --version`.
@@ -471,7 +471,7 @@ process.
 **Please follow the instructions carefully. Read EVERY WORD.**
 
 1.  **Ensure that your version of Vim is _at least_ 7.3.598 _and_ that it has
-    support for python2 scripting**.
+    support for python2 or python3 scripting**.
 
     Inside Vim, type `:version`. Look at the first two to three lines of output;
     it should say `Vi IMproved X.Y`, where X.Y is the major version of vim. If
@@ -483,11 +483,11 @@ process.
     from source][vim-build] (don't worry, it's easy).
 
     After you have made sure that you have Vim 7.3.598+, type the following in
-    Vim: `:echo has('python')`. The output should be 1. If it's 0, then get a
-    version of Vim with Python support.
+    Vim: `:echo has('python') || has('python3')`. The output should be 1. If
+    it's 0, then get a version of Vim with Python support.
 
     On Windows, check also if your Vim architecture is 32 or 64-bit. This is
-    critical because it must match the python2 and the YCM libraries
+    critical because it must match the python and the YCM libraries
     architectures. We recommend using a 64-bit Vim.
 
 2.  **Install YCM** with [Vundle][] (or [Pathogen][], but Vundle is a better
@@ -529,7 +529,7 @@ process.
     Debian-like Linux distro, this would be `sudo apt-get install python-dev`.
     On Mac they should already be present.
 
-    On Windows, you need to download and install [python2][python-win-download].
+    On Windows, you need to download and install [python3][python-win-download].
     Pick the version corresponding to your Vim architecture. You will also need
     Microsoft Visual C++ (MSVC) to build YCM. You can obtain it by installing
     [Visual Studio][visual-studio-download]. MSVC 11 (Visual Studio 2012), 12
@@ -929,7 +929,7 @@ let g:ycm_rust_src_path = '/usr/local/rust/rustc-1.5.0/src'
 
 Completion and GoTo commands work out of the box with no additional
 configuration. Those features are provided by the [jedi][] library which
-supports a variety of python versions (2.6, 2.7, 3.2, 3.3 or 3.4) as long as it
+supports a variety of python versions (2.6, 2.7, 3.2+) as long as it
 runs in the corresponding python interpreter. By default YCM runs [jedi][] with
 the same python interpreter used by the [ycmd server][ycmd], so if you would like to
 use a different interpreter, use the following option specifying the python
@@ -2298,8 +2298,8 @@ let g:ycm_disable_for_files_larger_than_kb = 1000
 
 This option specifies the Python interpreter to use to run the [jedi][]
 completion library.  Specify the python interpreter to use to get completions.
-By default the python under which [ycmd][] runs is used ([ycmd][] only runs
-under Python 2.6 or 2.7).
+By default the python under which [ycmd][] runs is used ([ycmd][] runs on
+Python 2.6, 2.7 or 3.3+).
 
 Default: `''`
 
@@ -2719,10 +2719,10 @@ EOF
 
 ### I hear that YCM only supports Python 2, is that true?
 
-No. The Vim client and the [ycmd server][ycmd] only run under Python 2 but if
-you work on a Python 3 project then just set the `g:ycm_python_binary_path` to
-the Python interpreter you use for your project and you will get completions for
-that version of Python.
+**No.** Both the Vim client and the [ycmd server][ycmd] run on Python 2 or 3. If
+you work on a Python 3 project, you may need to set `g:ycm_python_binary_path`
+to the Python interpreter you use for your project to get completions for that
+version of Python.
 
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