Hi, While trying to install yt on mac, it quits after a while: 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. Installing mercurial-2.0 (arguments: 'mercurial-2.0') Setting YT_DIR=/Users/hitu/Documents/yt/yt-i386/src/yt-hg/ Installing distribute Installing pip Failure. Check /Users/hitu/Documents/yt/yt-i386/yt_install.log. I checked yt_install.log : from pyexpat import * ImportError: No module named pyexpat Something went wrong during the installation. See the error message above. install_script.sh: line 499: /Users/hitu/Documents/yt/yt-i386/bin/easy_install-2.7: No such file or directory Please let me know how to proceed. Thanks Shankar