My system:

```
Ubuntu 16.04
Mitmproxy version 3.0.4
Python version 3.5.2

```

I've successfully installed `mitmproxy` from: [docs.mitmproxy.org](https://docs.mitmproxy.org/stable/overview-installation/) on my server. But now I got confused how to save log mitmproxy to file? I try use `mitmdump --mode transparent --showhost -p 9001 -w output_file`

While I open `output_file`, it's not human readable. I read the docs and try scripts from the mitmproxy's Github, but no clue.

Anyone know how to save log mitmproxy to file, but human readable?  

Thank you!