Updated README.md to Python3

[aa-dit-yuh]

Changing $ sudo python to $ sudo python3 at all places should suffice.
Please review.

[rgaiacs]

@narayanaditya95 you should use python3 instead of python3.4.

[aa-dit-yuh]

Changes made. Please review.

[wking]

On Sat, Mar 07, 2015 at 08:02:44AM -0800, Aditya Narayan wrote:

Changes made. Please review.

I'd rather just mention “Python 3” in the text. For example:

To get started:

1. Install Python 3

   1. Install amy's Python dependencies:

      $ python -m pip install --user -r requirements.txt

Because on my Gentoo box ‘python’ is the name for the Python 3 binary:

$ python --version
Python 3.4.2

If we really want, we could say something like:

2. Install amy's Python dependencies:

   $ python -m pip install --user -r requirements.txt

 The name of your Python 3 executable may be `python3`, in which
 case run:

   $ python3 -m pip install --user -r requirements.txt

 and make similar replacements in this file's other `python`
 commands as well as in the `Makefile`.

Because we're currently hard-coding python in the Makefile.

I also prefer a --user install here than suggesting folks sudo install
system packages, since system-wide installs are best left to your
system's package manager (in my opinion ;), and we shouldn't claim to
need root privileges if we don't need them.

[aa-dit-yuh]

@wking
Refering to a wiki at Ubuntu, it seems python always points to Python2.7, if installed. Although there are goals to shift everything to Python3 as mentioned in the wiki, it still hasn't materialised. I am aware that other distro may point python to Python3.
Using python instead of python3 does not solve the problem for me, unless I add an alias at my .bashrc.
I suggest we explicitly mention python3 in the Makefile for the same reason.

Please correct me if I am wrong.

[rgaiacs]

@wking I prefer use `python3` since the build instructions from Python says

…

This will install Python as python3.

[wking]

On Sat, Mar 07, 2015 at 04:42:47PM -0800, Aditya Narayan wrote:

Refering to a wiki at Ubuntu…

The wiki links to PEP 394 1, which suggests ‘python3’ too, so I'll
reverse my position and support ‘python’ → ‘python3’. This PR should
update the Makefile too.

[aa-dit-yuh]

Sorry for missing out the Makefile. Updated Makefile as instructed.

[wking]

On Sun, Mar 08, 2015 at 05:23:14PM -0700, Aditya Narayan wrote:

Updated Makefile as instructed.

Thanks :). The PR looks good to me now.

[pbanaszkiewicz]

These changes look good to me so I'll go ahead and merge them.