Error message should be clearer when there's a syntax error in the TOML file #1256
Description
Steps to reproduce
- Create config.toml that has a syntax error, like this:
server.port=- Run a script with Streamlit (e.g.
streamlit hello)
Expected behavior:
We should see an error like this on the console:
ValueError: Error parsing ~/.streamlit/config.toml. This is most likely due to a syntax error in the TOML file. Please fix it and try again.
[Original exception from the toml parser goes here]
...where the "original exception" is the part of the error below that ends with toml.decoder.TomlDecodeError: Empty value is invalid (line 1 column 1 char 0).
Actual behavior:
We see this error on the console, which is not super clear:
Traceback (most recent call last):
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/toml/decoder.py", line 456, in loads
multibackslash)
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/toml/decoder.py", line 725, in load_line
value, vtype = self.load_value(pair[1], strictly_valid)
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/toml/decoder.py", line 739, in load_value
raise ValueError("Empty value is invalid")
ValueError: Empty value is invalid
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/bin/streamlit", line 5, in <module>
from streamlit.cli import main
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/__init__.py", line 103, in <module>
from streamlit.DeltaGenerator import DeltaGenerator as _DeltaGenerator
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/DeltaGenerator.py", line 27, in <module>
from streamlit import caching
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/caching.py", line 40, in <module>
from streamlit.hashing import Context
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/hashing.py", line 40, in <module>
from streamlit.folder_black_list import FolderBlackList
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/folder_black_list.py", line 39, in <module>
if config.get_option("global.developmentMode"):
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/config.py", line 90, in get_option
parse_config_file()
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/config.py", line 888, in parse_config_file
_update_config_with_toml(file_contents, filename)
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/streamlit/config.py", line 810, in _update_config_with_toml
parsed_config_file = toml.loads(raw_toml)
File "/home/tvst/.local/share/virtualenvs/py3.7-gDeIkMOX/lib/python3.7/site-packages/toml/decoder.py", line 458, in loads
raise TomlDecodeError(str(err), original, pos)
toml.decoder.TomlDecodeError: Empty value is invalid (line 1 column 1 char 0)
Is this a regression?
no
Debug info
- Streamlit version: 0.56.0
- Python version: 3.7
Additional information
Source: https://discuss.streamlit.io/t/cant-import-streamlit-anymore/2288/2
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