BadRarFile: Failed the read enough data

[chrisspen]

I'm running into strange behavior on different servers with reading Rar files. On my Ubuntu 12.04 localhost, I have unrar-nonfree installed, and I can unrar a sample archive just fine, but on an Ubuntu 12.04 instance running on Amazon, which uses the unrar-free package instead, I get the error:

>>> import rarfile
>>> fn = '/tmp/sample.rar'
>>> rf = rarfile.RarFile(fn)
>>> fin = rf.open(rf.namelist()[0])
>>> total_lines = rf.open(rf.namelist()[0]).read().count('\n')
BadRarFile: Failed the read enough data

What does that error mean?

Using checksums, I've confirmed the rar files aren't getting corrupted and permissions are corrupt. That same code runs fine on my localhost.

The only difference seems to be which backend unrar package I'm using. However, the unrar-nonfree seems to have become obsolete and has been removed from the standard repos, so I can't install in on the Amazon server. How do I fix this?

[chrisspen]

Nevermind. It seems this is a bug in unrar-free, and the only workaround is to enable the multiverse repo and install the non-free unrar package.

[pannal]

This doesn't seem like an issue with the unrar tool itself, but with the rarfile implementation:

Diaoul/subliminal#709 (comment)

[Southwest16]

I had the same problem with Centos. Once I have rar installed, it's ok！
https://bitsanddragons.wordpress.com/2018/01/09/install-rar-unrar-on-centos-7/

[zhbzhbzhbz]

I have the same problem too on Windows 10 using rarfile. But it works well with Winrar.