Python needs to be compiled with sqlite3.

[certik]

ondrej@kittiwake:~/repos/ipython(master)$ ~/repos/hashstack2/yy/bin/ipython notebook
Traceback (most recent call last):
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/bin/ipython", line 4, in <module>
    start_ipython()
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/__init__.py", line 118, in start_ipython
    return launch_new_instance(argv=argv, **kwargs)
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/config/application.py", line 544, in launch_instance
    app.initialize(argv)
  File "<string>", line 2, in initialize
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
    return method(app, *args, **kwargs)
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/terminal/ipapp.py", line 313, in initialize
    super(TerminalIPythonApp, self).initialize(argv)
  File "<string>", line 2, in initialize
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
    return method(app, *args, **kwargs)
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/core/application.py", line 371, in initialize
    self.parse_command_line(argv)
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/terminal/ipapp.py", line 308, in parse_command_line
    return super(TerminalIPythonApp, self).parse_command_line(argv)
  File "<string>", line 2, in parse_command_line
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
    return method(app, *args, **kwargs)
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/config/application.py", line 474, in parse_command_line
    return self.initialize_subcommand(subc, subargv)
  File "<string>", line 2, in initialize_subcommand
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error
    return method(app, *args, **kwargs)
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/config/application.py", line 405, in initialize_subcommand
    subapp = import_item(subapp)
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/utils/importstring.py", line 42, in import_item
    module = __import__(package, fromlist=[obj])
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/html/notebookapp.py", line 69, in <module>
    from .services.sessions.sessionmanager import SessionManager
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/site-packages/IPython/html/services/sessions/sessionmanager.py", line 20, in <module>
    import sqlite3
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/sqlite3/__init__.py", line 24, in <module>
    from dbapi2 import *
  File "/nh/nest/u/ondrej/repos/hashstack2/yy/lib/python2.7/sqlite3/dbapi2.py", line 27, in <module>
    from _sqlite3 import *
ImportError: No module named _sqlite3

Currently this dependency is commented out. Also, the Python build needs to be checked for all these modules, like in hashstack1.

[certik]

This is a duplicate issue for #99.