Cannot install on Ubuntu 16.04

[philiprenich]

Checklist

• This is a bug report.

Description

Cannot install Streamlink on Ubuntu 16.04 because python-cryptodomex is not available on this version. Apparently that dependency has unmet dependencies or was not updated to allow itself to get onto 16.04, just 14.04.

[beardypig]

Which method are you using to install streamlink?

[philiprenich]

Using the instructions from the site:

add-apt-repository ppa:nilarimogard/webupd8
apt update
apt install streamlink

I did not expect a response so quickly! Thanks!

[beardypig]

Ah OK, I think that package is maintained andrew@webupd8.org. I'm not sure why it depends on python-cryptodomex as it's not used, cryptodomex provides the Cryptodome module. python-crypto should be sufficient. Probably it's our fault for not updating the debian control files in our repo. I'll drop andrew an email and ask :)

[philiprenich]

@beardypig Thanks. If I'm understanding correctly, it's a simple fix, but there is not an immediate work around I can implement at the moment?

[beardypig]

Should be a relatively simple fix for Andrew to do, but I'm not sure how their system is setup so it maybe be more complex. You could try (assuming you're after the Python 2.7 version):

apt-get install python-backports-shutil-get-terminal-size python-backports-shutil-which python-concurrent.futures python-iso-639 python-iso3166 python-requests python-singledispatch python-crypto
apt-get install --nodeps python-streamlink streamlink

[gravyboat]

If you don't want to do the back porting you could also install via pip. That's what I've done for my Linux system, though I know not everyone prefers that method.

[hotice]

PPA maintainer here. I cannot reproduce this issue. @philiprenich what exactly happens when you try to install streamlink, and what if you try to install python-cryptodomex separately (sudo apt install python-cryptodomex)?

python-cryptodomex is available in the WebUpd8 PPA. Here's a screenshot that shows installing streamlink from the WebUpd8 PPA in Ubuntu 16.04 should work: http://i.imgur.com/ErhIjeW.jpg

Also, you say that python-cryptodomex has unmet dependencies... but it only depends on:

Depends: python (<< 2.8), python (>= 2.7~), python:any (>= 2.7.5-5~), libc6 (>= 2.4)

[beardypig]

I was also unable to reproduce this, streamlink installed fine on a clean xenial VM.

[philiprenich]

@hotice Thanks for the help. Here is my command and output (I've already added the repo and updated)

$ sudo apt install streamlink
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 streamlink : Depends: python-streamlink (= 0.3.2-1~webupd8~xenial) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Similarly:

$ sudo apt install python-cryptodomex
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package python-cryptodomex is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'python-cryptodomex' has no installation candidate

Correct me if I'm wrong, but my Python looks to be within the acceptable range?

$ python --version
Python 2.7.12

While I do see streamlink using apt-cache policy I do not see python-cryptodomex

$ apt-cache policy python-cryptodomex
python-cryptodomex:
  Installed: (none)
  Candidate: (none)
  Version table:

I'm happy to keep helping with this if indeed it is a bug, but if you deem it to just be something on my end, no worries - I was able to patch the livestreamer Twitch plugin with an updated .py file so am able to accomplish what I was going for.

I did just get pip installed today for something else, so I may give that a go just to see what happens.

Thanks for all the help and responses!

[hotice]

@philiprenich could you try readding the PPA? Like this:

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt update

python-cryptodomex is available in the PPA as you can see here: https://launchpad.net/~nilarimogard/+archive/ubuntu/webupd8/+packages?field.name_filter=python-cryptodomex&field.status_filter=published&field.series_filter=

So whatever is causing this issue, it is not related to the PPA packages.