Can't Love track using example code

[bonelifer]

What did you do?

Tried using the example from the readme, to love a trrack.

What did you expect to happen?

Love specified track

What actually happened?

Some sort of authentication error.

What versions are you using?

• OS: Xubuntu 20.04.4
• Python: 3.8
• pylast: most recent from Ubuntu package manager/pip3

Please include code that reproduces the issue.
Code in the Github readme

Traceback (most recent call last):
  File "last.py", line 11, in <module>
    network = pylast.LastFMNetwork(
  File "/home/william/.local/lib/python3.8/site-packages/pylast/__init__.py", line 670, in __init__
    super().__init__(
  File "/home/william/.local/lib/python3.8/site-packages/pylast/__init__.py", line 216, in __init__
    self.session_key = sk_gen.get_session_key(self.username, self.password_hash)
  File "/home/william/.local/lib/python3.8/site-packages/pylast/__init__.py", line 1072, in get_session_key
    doc = request.execute()
  File "/home/william/.local/lib/python3.8/site-packages/pylast/__init__.py", line 947, in execute
    response = self._download_response()
  File "/home/william/.local/lib/python3.8/site-packages/pylast/__init__.py", line 936, in _download_response
    self._check_response_for_errors(response_text)
  File "/home/william/.local/lib/python3.8/site-packages/pylast/__init__.py", line 965, in _check_response_for_errors
    raise WSError(self.network, status, details)
pylast.WSError: Authentication Failed - You do not have permissions to access the service

[hugovk]

It's failing to authenticate before even calling track.love, when creating the network object:

network = pylast.LastFMNetwork(
    api_key=API_KEY,
    api_secret=API_SECRET,
    username=username,
    password_hash=password_hash,
)

I can reproduce.

Maybe Last.fm have removed that authentication method?

Instead of that line, can you try this lot instead?

SESSION_KEY_FILE = os.path.join(os.path.expanduser("~"), ".session_key")
network = pylast.LastFMNetwork(API_KEY, API_SECRET)
if not os.path.exists(SESSION_KEY_FILE):
    skg = pylast.SessionKeyGenerator(network)
    url = skg.get_web_auth_url()

    print(f"Please authorize this script to access your account: {url}\n")
    import time
    import webbrowser

    webbrowser.open(url)

    while True:
        try:
            session_key = skg.get_web_auth_session_key(url)
            with open(SESSION_KEY_FILE, "w") as f:
                f.write(session_key)
            break
        except pylast.WSError:
            time.sleep(1)
else:
    session_key = open(SESSION_KEY_FILE).read()

network.session_key = session_key

Remember to call the track.love stuff afterwards:

# Now you can use that object everywhere
track = network.get_track("Iron Maiden", "The Nomad")
track.love()
track.add_tags(("awesome", "favorite"))

[bonelifer]

Thanks. That worked. Now off to love my scrobbles. Scrobble scrobble. Just wish LastFM would try to keep some consistency in their API longer term.

[hugovk]

Good to hear!

Maybe related to #357.

Let's update the README to use this web authentication instead of username and password authentication. It's probably worth adding a helper function to pylast with the above snippet.

[bonelifer]

Not a programmer, so shooting in the dark, blind as hell. What do I do to make this work? I'm more of a bash type of person. I need to get the answer from those two mpc commands, so that I can pass it to the command below it. I got as far as getting the top portion working, but not sure how to pass Finally got it working, example below.

artist = os.popen("/usr/bin/mpc -f %albumartist%").read()
artist = artist.split('\n')[0]

title = os.popen("/usr/bin/mpc -f %title%").read()
title = title.split('\n')[0]

# Now you can use that object everywhere
track = network.get_track(artist, title)