Injecting configuration and compiling...
Injecting scraper and running...
Traceback (most recent call last):
File "scraper.py", line 9, in <module>
print(lxml.html.tostring(page))
File "/app/.heroku/python/lib/python2.7/site-packages/lxml/html/__init__.py", line 1643, in tostring
doctype=doctype)
File "lxml.etree.pyx", line 3236, in lxml.etree.tostring (src/lxml/lxml.etree.c:71960)
TypeError: Type 'str' cannot be serialized.