Issue a warning if the BeautifulSoup constructor arguments do not explicitly name a parser.

1 files changed, 1 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index 0142ea0..75ba506 100644
--- a/setup.py
+++ b/setup.py
@@ -15,6 +15,7 @@ setup(name="beautifulsoup4",
       long_description="""Beautiful Soup sits atop an HTML or XML parser, providing Pythonic idioms for iterating, searching, and modifying the parse tree.""",
       license="MIT",
       packages=['bs4', 'bs4.builder', 'bs4.tests'],
+      install_requires=["lxml"],
       cmdclass = {'build_py':build_py},
       classifiers=["Development Status :: 4 - Beta",
                    "Intended Audience :: Developers",