$ hashmal
Traceback (most recent call last):
  File "/usr/local/bin/hashmal", line 13, in
    import hashmal_lib
  File "/usr/local/lib/python2.7/site-packages/hashmal_lib/__init__.py", line 5, in
    from main_window import HashmalMain
  File "/usr/local/lib/python2.7/site-packages/hashmal_lib/main_window.py", line 8, in
    from dock_handler import DockHandler
  File "/usr/local/lib/python2.7/site-packages/hashmal_lib/dock_handler.py", line 4, in
    from docks.addr_encoder import AddrEncoder
  File "/usr/local/lib/python2.7/site-packages/hashmal_lib/docks/__init__.py", line 6, in
    import tx_deserializer
ImportError: No module named tx_deserializer