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Rasa init RuntimeError: dictionary changed size during iteration

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post by sawirricardo on Feb 27, 2020

I have issues like this after Rasa init Traceback (most recent call last):
File “/usr/local/bin/rasa”, line 8, in
sys.exit(main())
File “/Library/Python/3.7/site-packages/rasa/ main.py”, line 82, in main
set_log_level(log_level)
File “/Library/Python/3.7/site-packages/rasa/utils/common.py”, line 71, in set_log_level
update_tensorflow_log_level()
File “/Library/Python/3.7/site-packages/rasa/utils/common.py”, line 107, in update_tensorflow_log_level
import tensorflow as tf
File “/Library/Python/3.7/site-packages/tensorflow/ init.py”, line 101, in
from tensorflow_core import *
File “/Library/Python/3.7/site-packages/tensorflow_core/ init.py”, line 40, in
from tensorflow.python.tools import module_util as _module_util
File “”, line 983, in _find_and_load
File “”, line 959, in _find_and_load_unlocked
File “/Library/Python/3.7/site-packages/tensorflow/ init.py”, line 50, in getattr
module = self._load()
File “/Library/Python/3.7/site-packages/tensorflow/ init.py”, line 44, in _load
module = _importlib.import_module(self. name)
File “/Applications/Xcode.app/Contents/Developer/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 “/Library/Python/3.7/site-packages/tensorflow_core/python/ init.py”, line 64, in
from tensorflow.core.framework.graph_pb2 import *
File “/Library/Python/3.7/site-packages/tensorflow_core/core/framework/graph_pb2.py”, line 7, in
from google.protobuf import descriptor as _descriptor
File “/Library/Python/3.7/site-packages/google/protobuf/ init.py”, line 37, in
import(‘pkg_resources’).declare_namespace( name)
File “/Library/Python/3.7/site-packages/pkg_resources/ init.py”, line 84, in
import(‘pkg_resources.extern.packaging.requirements’)
File “/Library/Python/3.7/site-packages/pkg_resources/_vendor/packaging/requirements.py”, line 9, in
from pkg_resources.extern.pyparsing import stringStart, stringEnd, originalTextFor, ParseException
File “”, line 983, in _find_and_load
File “”, line 967, in _find_and_load_unlocked
File “”, line 668, in _load_unlocked
File “”, line 638, in _load_backward_compatible
File “/Library/Python/3.7/site-packages/pkg_resources/extern/ init.py”, line 43, in load_module
import(extant)
File “/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py”, line 4756, in
_escapedPunc = Word( _bslash, r"[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
File “/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py”, line 1284, in setParseAction
self.parseAction = list(map(_trim_arity, list(fns)))
File “/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py”, line 1066, in _trim_arity
this_line = extract_stack(limit=2)[-1]
File “/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py”, line 1050, in extract_stack
frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
File “/Applications/Xcode.app/Contents/Developer/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 “/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py”, line 363, in extract
f.line
File “/Applications/Xcode.app/Contents/Developer/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 “/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/linecache.py”, line 16, in getline
lines = getlines(filename, module_globals)
File “/Applications/Xcode.app/Contents/Developer/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

Python version: pip3 --version
pip 20.0.2 from /Library/Python/3.7/site-packages/pip (python 3.7)

Any idea what’s happening here?

post by indiesk on Feb 29, 2020

I have the exactly the same error. All I did was run the following lines and got the same error:

python3 -m venv ./venv  
source ./venv/bin/activate  
pip3 install -U pip  
pip3 install rasa  
rasa init  

I checked the version of the installed rasa, and confirmed it’s 1.8.0

Did anyone have this issue and was able to resolve?

post by ptmcg on Mar 3, 2020

The vendored version of pyparsing that is being used is very old, most likely due to having an old version of packaging and/or setuptools. Please update both using pip3 install -U setuptools or pip3 install -U packaging. Unfortunately, since these are vendored copies of pyparsing, you cannot fix this problem by updating pyparsing (latest released version is 2.4.6, and this code dates back to at least 2.2.1).

post by alimoeeny on Mar 3, 2020

It seems to me that there is more to this, I made sure I have updated packaging and setuptools and still get the same RuntimeError: dictionary changed size during iteration error on rasa train inside the examples/formbot folder that is.

1. Set up new fresh virtual env in the examples/formbot
2. installed the updated pip3 and packaging and setuptools
3. installed rasa
   still same error

post by ptmcg on Mar 3, 2020

For reference, here is a reconstruction of the traceback from the original post, properly formatted for better readability:

File "/usr/local/bin/rasa", line 8, in  
    sys.exit(main())  
File "/Library/Python/3.7/site-packages/rasa/main.py", line 82, in main  
    set_log_level(log_level)  
File "/Library/Python/3.7/site-packages/rasa/utils/common.py", line 71, in set_log_level  
    update_tensorflow_log_level()  
File "/Library/Python/3.7/site-packages/rasa/utils/common.py", line 107, in update_tensorflow_log_level  
    import tensorflow as tf  
File "/Library/Python/3.7/site-packages/tensorflow/init.py", line 101, in  
    from tensorflow_core import \*  
File "/Library/Python/3.7/site-packages/tensorflow_core/init.py", line 40, in  
    from tensorflow.python.tools import module_util as _module_util  
File "", line 983, in _find_and_load  
File "", line 959, in _find_and_load_unlocked  
File "/Library/Python/3.7/site-packages/tensorflow/init.py", line 50, in getattr  
    module = self._load()  
File "/Library/Python/3.7/site-packages/tensorflow/init.py", line 44, in _load  
    module = _importlib.import_module(self.name)  
File "/Applications/Xcode.app/Contents/Developer/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 "/Library/Python/3.7/site-packages/tensorflow_core/python/init.py", line 64, in  
    from tensorflow.core.framework.graph_pb2 import \*  
File "/Library/Python/3.7/site-packages/tensorflow_core/core/framework/graph_pb2.py", line 7, in  
    from google.protobuf import descriptor as _descriptor  
File "/Library/Python/3.7/site-packages/google/protobuf/init.py", line 37, in  
    import('pkg_resources').declare_namespace(name)  
File "/Library/Python/3.7/site-packages/pkg_resources/init.py", line 84, in  
    import('pkg_resources.extern.packaging.requirements')  
File "/Library/Python/3.7/site-packages/pkg_resources/_vendor/packaging/requirements.py", line 9, in  
    from pkg_resources.extern.pyparsing import stringStart, stringEnd, originalTextFor, ParseException  
File "", line 983, in _find_and_load  
File "", line 967, in _find_and_load_unlocked  
File "", line 668, in _load_unlocked  
File "", line 638, in _load_backward_compatible  
File "/Library/Python/3.7/site-packages/pkg_resources/extern/init.py", line 43, in load_module  
    import(extant)  
File "/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 4756, in  
    _escapedPunc = Word(_bslash, r"[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])  
File "/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1284, in setParseAction  
    self.parseAction = list(map(_trim_arity, list(fns)))  
File "/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1066, in _trim_arity  
this_line = extract_stack(limit=2)[-1]  
File "/Library/Python/3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1050, in extract_stack  
frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]  
File "/Applications/Xcode.app/Contents/Developer/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 "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py", line 363, in extract  
f.line  
File "/Applications/Xcode.app/Contents/Developer/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 "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/linecache.py", line 16, in getline  
lines = getlines(filename, module_globals)  
File "/Applications/Xcode.app/Contents/Developer/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

post by maninderbawavip on Mar 20, 2020

@here facing the same issue. any fix???

• Not able to init a Rasa project

post by kvsista on Mar 22, 2020

I have the same issue! Anyone has a fix to it?

post by koaning on Mar 30, 2020

It seems to be an issue related to tensorflow, potentially also to macOS. Based on the issue found here.

post by koaning on Mar 30, 2020

I may have found a fix. I am running on macOS and when I switch my python version to 3.6.8 then it seems to work again. It is also suggested here that upgrading to 3.7.5 might also offer a solution.