Adding six to setup.py requires, too [skip ci]
@@ -111,7 +111,7 @@ for root, dirs, files in os.walk(PACKAGENAME):
package_info['package_data'][PACKAGENAME].extend(c_files)
required_packages = ['astropy>=1.3', 'requests>=2.4.3', 'keyring>=4.0',
- 'beautifulsoup4>=4.3.2', 'html5lib>=0.999']
+ 'beautifulsoup4>=4.3.2', 'html5lib>=0.999', 'six']
extras_require = {
'test': ['pytest-astropy']
@@ -122,7 +122,7 @@ setup(name=PACKAGENAME,
description=DESCRIPTION,
scripts=scripts,
requires=['astropy', 'requests', 'keyring', 'beautifulsoup4',
- 'html5lib'],
+ 'html5lib', 'six'],
install_requires=required_packages,
include_package_data=True,
provides=[PACKAGENAME],
