List of spotify uri from given playlist URI

get_track_uri_from_playlist.py

import os
import requests
PLAYLIST_URI = os.environ['PLAYLIST_URI']
SPOTIFY_TOKEN = os.environ['SPOTIFY_TOKEN'] # from default api login or more easily from chrome network inspecting calls directed to api.spotify.com

url = "https://api.spotify.com/v1/playlists/{}".format(PLAYLIST_URI)

querystring = {"type": "track,episode", "market": "from_token"}

headers = {
    'accept': "application/json",
    'origin': "https://open.spotify.com",
    'authorization': "Bearer {}".format(SPOTIFY_TOKEN),
    'accept-language': "en",
    'user-agent': "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36",
    'accept-encoding': "gzip, deflate, br",
    'cache-control': "no-cache",
}

response = requests.request("GET", url, headers=headers, params=querystring)

uri_list = []

json_response = response.json()
while True:
    if len(json_response.get('tracks', {}).get('items', [])):
        tracks = json_response.get('tracks', {}).get('items', [])
    else:
        tracks = json_response.get('items', [])
    for track in tracks:
        if isinstance(track, dict) and track.get('track', {}).get('uri') is not None:
            uri_list.append(track.get('track', {}).get('uri'))

    if json_response.get('tracks', {}).get('next') or json_response.get('next', None):
        if json_response.get('tracks', {}).get('next'):
            nxt = json_response.get('tracks', {}).get('next')
        else:
            nxt = json_response.get('next', {})
        json_response = requests.request("GET", nxt, headers=headers).json()
    else:
        break

if len(uri_list):
    with open('uri_list.txt', 'w') as f:
        for item in uri_list:
            f.write("%s\n" % item)

Great, thanks! Could you elaborate on the usage?
I tried with python get_track_uri_from_playlist.py spotify:user:12345:playlist:blablob on OSX and got no result:

Traceback (most recent call last):
  File "get_track_uri_from_playlist.py", line 3, in <module>
    PLAYLIST_URI = os.environ['PLAYLIST_URI']
  File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/os.py", line 678, in __getitem__
    raise KeyError(key) from None
KeyError: 'PLAYLIST_URI'

I guess I need to define the key somewhere?

you only have to take the last part, the spotify playlist id for ex: spotify:playlist:$$SPOTIFY_PLAYLISYT_ID$$
and of course yes you need to define it in a environment variable or if you prefer you can replace hardcoding your token and spotify playlist id