💬 Open source machine learning framework to automate text- and voice-based conversations: NLU, dialogue management, connect to Slack, Facebook, and more - Create chatbots and voice assistants
**Rasa Core version**:
rasa-core 0.13.2 pypi_0 pypi
**Python version**:
python 3.6.7 h9f7ef89_2 defaults
**Operating system** (windows, osx, ...):
Windows 10 Pro 1809
**Issue**:
Default logging file encoding config not set enconding to utf8, and when I build a chinese bot and set --debug mode in :
`python -m rasa_core.run -d models/core -u nlu/ --endpoints data/endpoints.yml --credentials data/credentials.yml -o logs/core.log --debug`
default output log file some text like this:
```
Bot utterance 'BotUttered(text: ��Ǹ����Ϊ���˳����������½��м�¼��, data: {
"elements": null,
"buttons": null,
"attachment": null
})'
```
it can't show chinese char.
I can fix it by edit `D:\Programs\Anaconda3\envs\nlp\Lib\site-packages\rasa_core\utils.py`
line 31
```
def configure_file_logging(loglevel, logfile):
if logfile:
fh = logging.FileHandler(logfile)
fh.setLevel(loglevel)
logging.getLogger('').addHandler(fh)
logging.captureWarnings(True)
```
to
```
fh = logging.FileHandler(logfile, encoding='utf-8')
```
so can we default use utf8 like #1041 #1100
Thanks a lot !
**Content of domain file** (if used & relevant):
```yaml
```