'dict' object has no attribute 'itervalues'

[ldwnt]

An exception thrown when used with pyrasite-memory-viewer:

(py381torch160) [cxh@deepq ~]$ pyrasite-memory-viewer 3365181
loaded line 12838, 12839 objs,   1.5 /   1.5 MiB read in 0.1s
checked    12838 /    12839 collapsed      327
set parents    12511 /    12512
collapsed in 0.0s
set parents    12511 /    12512
Traceback (most recent call last):
  File "/home/cxh/.pyenv/versions/py381torch160/bin/pyrasite-memory-viewer", line 11, in <module>
    load_entry_point('pyrasite==2.0', 'console_scripts', 'pyrasite-memory-viewer')()
  File "/home/cxh/.pyenv/versions/3.8.1/envs/py381torch160/lib/python3.8/site-packages/pyrasite/tools/memory_viewer.py", line 153, in main
    PyrasiteMemoryViewer(pid=pid, objects=objects).main()
  File "/home/cxh/.pyenv/versions/3.8.1/envs/py381torch160/lib/python3.8/site-packages/pyrasite/tools/memory_viewer.py", line 130, in main
    self.view, self.exit_view = self.setup_view()
  File "/home/cxh/.pyenv/versions/3.8.1/envs/py381torch160/lib/python3.8/site-packages/pyrasite/tools/memory_viewer.py", line 86, in setup_view
    self.object_buttons = self.get_object_buttons()
  File "/home/cxh/.pyenv/versions/3.8.1/envs/py381torch160/lib/python3.8/site-packages/pyrasite/tools/memory_viewer.py", line 75, in get_object_buttons
    for i, line in enumerate(str(self.summary).split('\n')):
  File "/home/cxh/.pyenv/versions/3.8.1/envs/py381torch160/lib/python3.8/site-packages/meliae/loader.py", line 177, in __repr__
    self.by_size()
  File "/home/cxh/.pyenv/versions/3.8.1/envs/py381torch160/lib/python3.8/site-packages/meliae/loader.py", line 198, in by_size
    summaries = sorted(self.type_summaries.itervalues(),
AttributeError: 'dict' object has no attribute 'itervalues' 

python: 3.8.1
meliae: 0.5.1
pyrasite: 2.0