Update setup.py: Use pdfminer.six for Python 3
@@ -129,7 +129,7 @@ setup(
"beautifulsoup4",
"lxml",
"feedparser",
- "pdfminer" if sys.version < "3" else "pdfminer3k",
+ "pdfminer" if sys.version < "3" else "pdfminer.six",
"numpy",
"scipy",
"nltk",
