Extractor for npo.nl programs (as opposed to episodes of programs).

Retrieves only the most recent episodes of the program in question (hence the name). Some programs have so many episodes available that it doesn't make any practical sense to retrieve all, as discussed in issue #7947.

testnporecent.ps1

@@ -0,0 +1,43 @@
+Describe 'Flake8' {
+    It 'Does not return any errors' {
+        & flake8 /Users/jhoek/GitHub/youtube-dl/youtube_dl/extractor/npo.py | Should BeNullOrEmpty
+    }
+}
+
+Describe 'Tests' {
+    It 'Should work in Python 2.6' {
+        & 'python2.6' '--version' 2>&1 | Should Be 'Python 2.6.9'
+
+        '', '_1', '_2' | ForEach-Object {
+            & 'python2.6' /Users/jhoek/GitHub/youtube-dl/test/test_download.py "TestDownload.test_NPORecents$($_)" 2>&1 
+            $LASTEXITCODE | Should Be 0
+        }
+    }
+
+    It 'Should work in Python 2.7' {
+        & python '--version' 2>&1 | Should Be 'Python 2.7.13'
+
+        '', '_1', '_2' | ForEach-Object {
+            & python /Users/jhoek/GitHub/youtube-dl/test/test_download.py "TestDownload.test_NPORecents$($_)" 2>&1 
+            $LASTEXITCODE | Should Be 0
+        }
+    }
+
+    It 'Should work in Python 3.5' {
+        & python3 '--version' | Should Be 'Python 3.5.2'
+
+        '', '_1', '_2' | ForEach-Object {
+            & python3 /Users/jhoek/GitHub/youtube-dl/test/test_download.py "TestDownload.test_NPORecents$($_)" 2>&1 
+            $LASTEXITCODE | Should Be 0
+        }
+    }
+
+    It 'Should work in Python 3.6' {
+        & python3.6 '--version' | Should Be 'Python 3.6.1'
+
+        '', '_1', '_2' | ForEach-Object {
+            & 'python3.6' /Users/jhoek/GitHub/youtube-dl/test/test_download.py "TestDownload.test_NPORecents$($_)" 2>&1 
+            $LASTEXITCODE | Should Be 0
+        }
+    }
+}

youtube_dl/extractor/extractors.py

@@ -686,6 +686,7 @@ from .npo import (
     NPORadioFragmentIE,
     SchoolTVIE,
     HetKlokhuisIE,
+    NPORecentsIE,
     VPROIE,
     WNLIE,
 )

youtube_dl/extractor/npo.py

@@ -478,6 +478,80 @@ class HetKlokhuisIE(NPODataMidEmbedIE):
     }
 
 
+class NPORecentsIE(NPOIE):
+    IE_Name = 'npo:recents'
+    npo12_regex = r"""<div class='span4'>\s*<div class='image-container'>\s*<a href="(.*?)">\s*(<div class="program-not-available">)?"""
+    npo3_regex = r"""<div class='span4 image'>\s*<a href="(.*?)">\s*<div class="meta-container">\s*<div class="meta first">\s*<div class="md-label"><span class="npo-glyph triangle-right"></span></div>\s*<div class="md-value">.*?</div>\s*</div>\s*</div>\s*(<div class="program-not-available">)?"""
+    _VALID_URL = r'(?:https?://)?(?:www\.)?npo\.nl/(?P<alt_id>[^/]+)/(?P<program_id>\w+_\d+)'
+    _TESTS = [{
+        # Example of an npo3 program
+        'url': 'https://www.npo.nl/keuringsdienst-van-waarde/KN_1678993',
+        'info_dict': {
+            'title': 'Keuringsdienst van Waarde',
+            'id': 'KN_1678993',
+            'description': 'md5:5ffaf131f175d8a771e7a7884833dad2'
+        },
+        'playlist_mincount': 8
+    }, {
+        # Example of an npo1/npo2 program
+        'url': 'https://www.npo.nl/jinek/KN_1676589',
+        'info_dict': {
+            'title': 'Jinek',
+            'id': 'KN_1676589',
+            'description': 'md5:6998986899b4903395f0cdd0670cedaf'
+        },
+        'playlist_mincount': 8
+    }, {
+        # Example of a program for which there will be only one available episode (if any)
+        'url': 'https://www.npo.nl/midsomer-murders/POW_00828660',
+        'info_dict': {
+            'title': 'Midsomer murders',
+            'id': 'POW_00828660',
+            'description': 'md5:a8b6e9d3e3bd367be88766e3ce8e8362'
+        },
+        'playlist_maxcount': 1
+    }]
+
+    def _extract_entries(self, webpage, program_id, program_url):
+        is_npo3 = 'www-assets.npo.nl/uploads/tv_channel/265/logo/smaller_npo3-logo.png' in webpage
+
+        if is_npo3:
+            episodes_url = '%s//search?category=broadcasts&page=1' % program_url
+            regex = self.npo3_regex
+        else:
+            episodes_url = '%s/search?media_type=broadcast&start=0&rows=8' % program_url
+            regex = self.npo12_regex
+
+        episodes = self._download_webpage(episodes_url, program_id, note='Retrieving episodes')
+
+        for match in re.finditer(regex, episodes):
+            url = match.group(1)
+            available = match.group(2) is None
+
+            if available:
+                yield self.url_result(
+                    url='http://npo.nl%s' % url,
+                    video_title=self._og_search_title(webpage))
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        alt_id = mobj.group('alt_id')
+        program_id = mobj.group('program_id')
+        webpage = self._download_webpage(url, program_id)
+        title = self._og_search_title(webpage, fatal=False) or alt_id
+        description = self._og_search_description(webpage) or self._html_search_meta('description', webpage, 'description', fatal=False)
+        entries = self._extract_entries(webpage, program_id, url)
+
+        return {
+            '_type': 'playlist',
+            'id': program_id,
+            'display_id': alt_id,
+            'title': title,
+            'description': description,
+            'entries': entries
+        }
+
+
 class NPOPlaylistBaseIE(NPOIE):
     def _real_extract(self, url):
         playlist_id = self._match_id(url)