[BUG] RuntimeError: dictionary changed size during iteration

[codercotton]

🐛 Bug Report

Describe the bug RuntimeError: dictionary changed size during iteration when running play.sh

How to Reproduce

1. Follow instructions in README.md
2. Run play.py
3. See error

Expected behavior AIDungeon plays as expected.

Error output

Traceback (most recent call last):
  File "./play.py", line 7, in <module>
    from generator.gpt2.gpt2_generator import *
  File "/Users/cotton/AIDungeon/generator/gpt2/gpt2_generator.py", line 7, in <module>
    import tensorflow as tf
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/tensorflow/__init__.py", line 99, in <module>
    from tensorflow_core import *
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/tensorflow_core/__init__.py", line 28, in <module>
    from tensorflow.python import pywrap_tensorflow  # pylint: disable=unused-import
  File "<frozen importlib._bootstrap>", line 1019, in _handle_fromlist
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/tensorflow/__init__.py", line 50, in __getattr__
    module = self._load()
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/tensorflow/__init__.py", line 44, in _load
    module = _importlib.import_module(self.__name__)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/tensorflow_core/python/__init__.py", line 52, in <module>
    from tensorflow.core.framework.graph_pb2 import *
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/tensorflow_core/core/framework/graph_pb2.py", line 7, in <module>
    from google.protobuf import descriptor as _descriptor
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/google/protobuf/__init__.py", line 37, in <module>
    __import__('pkg_resources').declare_namespace(__name__)
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/pkg_resources/__init__.py", line 84, in <module>
    __import__('pkg_resources.extern.packaging.requirements')
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/pkg_resources/_vendor/packaging/requirements.py", line 9, in <module>
    from pkg_resources.extern.pyparsing import stringStart, stringEnd, originalTextFor, ParseException
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 668, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 638, in _load_backward_compatible
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/pkg_resources/extern/__init__.py", line 43, in load_module
    __import__(extant)
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 4756, in <module>
    _escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1284, in setParseAction
    self.parseAction = list(map(_trim_arity, list(fns)))
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1066, in _trim_arity
    this_line = extract_stack(limit=2)[-1]
  File "/Users/cotton/AIDungeon/venv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1050, in extract_stack
    frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py", line 211, in extract_stack
    stack = StackSummary.extract(walk_stack(f), limit=limit)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py", line 363, in extract
    f.line
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py", line 285, in line
    self._line = linecache.getline(self.filename, self.lineno).strip()
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/linecache.py", line 16, in getline
    lines = getlines(filename, module_globals)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/linecache.py", line 48, in getlines
    for mod in sys.modules.values():
RuntimeError: dictionary changed size during iteration

[Calderis]

It might come from your python version. I had the same problem with Python 3.7.3 and I changed for 3.7.7 (see : https://github.com/tensorflow/tensorflow/issues/33183)

To do so, remove the venv folder and switch into the install.sh file python3 -m venv ./venv for python3.7 -m venv ./venv

Once this is done redo ./install.sh, source ./venv/bin/activate and ./play.py

At least it works for me.