yaml.parser.ParserError: expected '<document start>', but found '<block mapping start>'

[cybrmakr]

First of all, thank you for creating this project, I hope it will help us finding flats!
Right now though, I actually can't get the project up and running, the following error appears with these settings:

Python 3.11.7
CentOS 8 Stream

Copied config.yaml.dist into config.yaml and added Telegram config:

 telegram:
   bot_token: 7xxxxxxxx:Axxxxxxxxxxxx-Fxxxxxxxxxxx
   notify_with_images: true
   receiver_ids:
       - 4xxxxxxxx

There might be some issue with my dependency installation via pipenv install.

Part of error:

(flathunter) [centos@localhost flathunter]$ python flathunt.py 
...
  File "/home/centos/.local/share/virtualenvs/flathunter-RIm6_1UG/lib64/python3.11/site-packages/yaml/parser.py", line 171, in parse_document_start
    raise ParserError(None, None,
yaml.parser.ParserError: expected '<document start>', but found '<block mapping start>'
  in "/home/centos/Git/flathunter/config.yaml", line 10, column 1

Full error message:

(flathunter) [centos@localhost flathunter]$ python flathunt.py 
[2024/05/03 01:04:27|config.py               |INFO    ]: Using config path /home/centos/Git/flathunter/config.yaml
Traceback (most recent call last):
  File "/home/centos/Git/flathunter/flathunt.py", line 99, in <module>
    main()
  File "/home/centos/Git/flathunter/flathunt.py", line 53, in main
    config = Config(config_handle.name)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/centos/Git/flathunter/flathunter/config.py", line 430, in __init__
    config = yaml.safe_load(file)
             ^^^^^^^^^^^^^^^^^^^^
  File "/home/centos/.local/share/virtualenvs/flathunter-RIm6_1UG/lib64/python3.11/site-packages/yaml/__init__.py", line 125, in safe_load
    return load(stream, SafeLoader)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/centos/.local/share/virtualenvs/flathunter-RIm6_1UG/lib64/python3.11/site-packages/yaml/__init__.py", line 81, in load
    return loader.get_single_data()
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/centos/.local/share/virtualenvs/flathunter-RIm6_1UG/lib64/python3.11/site-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/centos/.local/share/virtualenvs/flathunter-RIm6_1UG/lib64/python3.11/site-packages/yaml/composer.py", line 39, in get_single_node
    if not self.check_event(StreamEndEvent):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/centos/.local/share/virtualenvs/flathunter-RIm6_1UG/lib64/python3.11/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/home/centos/.local/share/virtualenvs/flathunter-RIm6_1UG/lib64/python3.11/site-packages/yaml/parser.py", line 171, in parse_document_start
    raise ParserError(None, None,
yaml.parser.ParserError: expected '<document start>', but found '<block mapping start>'
  in "/home/centos/Git/flathunter/config.yaml", line 10, column 1
(flathunter) [centos@localhost flathunter]$ 

[cybrmakr]

config.yaml.dist

I suggest to add a comment to the following line as it breaks the validity of the YAML file:

title: {crawler}: {title}

removing/commenting this line resolves the error described.

[codders]

Thanks for the report! I've updated the default config, and that should be fixed in the latest code (#586). Can you recheck and verify?

[codders]

Closing this as resolved. Please reopen if it turns out still to be an issue.