diff --git a/setup.py b/setup.py index 0901b20b3bedc34cc964253e505fea43f17c8f64..81b22d3d4372da0b6ae8f5a842557030055d3765 100644 --- a/setup.py +++ b/setup.py @@ -17,8 +17,9 @@ else: if sys.version_info < (3, 0): reqlist = ['numpy', 'astropy >= 0.4, <3.0'] else: - # Require astropy v3.2 or later to get much faster copies - reqlist = ['numpy', 'astropy >= 3.2'] + # Require astropy v3.2 or later to get much faster copies (4.x can cause some + # installation problems, so exclude for now) + reqlist = ['numpy', 'astropy >= 3.2, <4.0'] if build_c_extentions: reqlist.append('pybind11>=2.2.0') ext_modules = [Extension('lsmtool.operations._grouper',