I've got something more that might interest you. I manually downloaded the tarball from dev.mobileread.com and tried to unpack it (with XArchiver.) It gave me some errors and I thought the other errors might be related to them.
Code:
lots o'stuff...
...
itertools.so
readline.so
lit-meta
operator.so
calibre-parallel
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/Extensions/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/kernel/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/kernel/config/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/kernel/scripts/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/kernel/tests/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/kernel/core/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/util.py» with «IPython/kernel/core/util.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/ultraTB.py» with «IPython/kernel/core/ultraTB.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/kernel/core/config/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/magic.py» with «IPython/kernel/core/magic.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/error.py» with «IPython/kernel/core/error.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/kernel/core/tests/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/history.py» with «IPython/history.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/config/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/testing/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/util.py» with «IPython/testing/util.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/testing/tests/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/macro.py» with «IPython/macro.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/tools/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/tools/tests/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/external/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/Itpl.py» with «IPython/external/Itpl.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/gui/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «IPython/gui/wx/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/__init__.py» with «PIL/__init__.py»
mv: will not overwrite just-created «/home/ingrid/progs/calibre/_imagingft.so» with «PIL/_imagingft.so»