It’s unfortunate that the 3.1 link is wrong (since that’s the current stable version), but any link for version 2.x should not be trusted. 

What operating system are you trying to install yt on?

On Jul 17, 2015, at 4:35 PM, Shankar Agarwal <agarwalshankar@gmail.com> wrote:

Hi Cameron,

There are many yt versions that point to:

wget http://hg.yt-project.org/yt/raw/stable/doc/install_script.sh

http://yt-project.org/docs/2.5/orientation/installing.html
http://yt-project.org/docs/3.1/installing.html

You are right that the above downloads an index.html.

Anyway, the new link you gave me, works well (although I had to use --no-check-certificate): 
wget http://bitbucket.org/yt_analysis/yt/raw/stable/doc/install_script.sh --no-check-certificate

However, installation failed with a pyexpat error:

-------------------------------------------------------------------------
Installing BZLIB
Installing ZLIB
Installing PNG
Installing FreeType2
Installing HDF5
Installing SQLite3
Installing Python.  This may take a while, but don't worry.  yt loves you.
Installing mercurial-3.1
Cloning yt
Setting YT_DIR=/Users/hitu/Documents/yt3/yt-i386/src/yt-hg/
Installing distribute
********************************************
        FAILURE REPORT:
********************************************

    pl = plistlib.readPlist(fn)
  File "/Users/hitu/Documents/yt3/yt-i386/lib/python2.7/plistlib.py", line 78, in readPlist
    rootObject = p.parse(pathOrFile)
  File "/Users/hitu/Documents/yt3/yt-i386/lib/python2.7/plistlib.py", line 401, in parse
    from xml.parsers.expat import ParserCreate
  File "/Users/hitu/Documents/yt3/yt-i386/lib/python2.7/xml/parsers/expat.py", line 4, in <module>
    from pyexpat import *
ImportError: No module named pyexpat
Something went wrong during the installation.
See the error message above.

********************************************
********************************************
Failure.  Check /Users/hitu/Documents/yt3/yt-i386/yt_install.log.  The last 10 lines are above.
-------------------------------------------------------------------------

Let me know how may I proceed...
Shankar

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