As the result of prevous commit, some tests started to XPASS (#605)
treebc5596917c8c5a368428032c6860c97da670341f
-rw-r--r-- 76 .hgignore
-rw-r--r-- 854 .hgtags
-rw-r--r-- 1515 LICENSE
-rw-r--r-- 196 MANIFEST.in
-rw-r--r-- 5719 README
-rw-r--r-- 261 TODO
drwxr-xr-x - bin
drwxr-xr-x - data
drwxr-xr-x - doc
drwxr-xr-x - examples
-rwxr-xr-x 9028 setup.py
drwxr-xr-x - sympy