$ bpython --version
bpython version mercurial on top of Python 3.4.1

$ bpython
>>>
Traceback (most recent call last):
  File "/Users/myint/Library/Python/3.4/bin/bpython-curtsies", line 9, in <module>
    load_entry_point('bpython==mercurial', 'console_scripts', 'bpython-curtsies')()
  File "/Users/myint/Library/Python/3.4/lib/python/site-packages/bpython/curtsies.py", line 66, in main
    mainloop(config, locals_, banner, interp, paste, interactive=(not exec_args))
  File "/Users/myint/Library/Python/3.4/lib/python/site-packages/bpython/curtsies.py", line 139, in mainloop
    process_event(e)
  File "/Users/myint/Library/Python/3.4/lib/python/site-packages/bpython/curtsies.py", line 120, in process_event
    repl.process_event(e)
  File "/Users/myint/Library/Python/3.4/lib/python/site-packages/bpython/curtsiesfrontend/repl.py", line 403, in process_event
    return self.process_key_event(e)
  File "/Users/myint/Library/Python/3.4/lib/python/site-packages/bpython/curtsiesfrontend/repl.py", line 481, in process_key_event
    self.pager(self.help_text())
  File "/Users/myint/Library/Python/3.4/lib/python/site-packages/bpython/curtsiesfrontend/repl.py", line 1182, in pager
    tmp.write(text)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/tempfile.py", line 399, in func_wrapper
    return func(*args, **kwargs)
TypeError: 'str' does not support the buffer interface