17 lines
552 B
Python
17 lines
552 B
Python
try:
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import ast
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from _markerlib.markers import default_environment, compile, interpret
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except ImportError:
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if 'ast' in globals():
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raise
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def default_environment():
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return {}
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def compile(marker):
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def marker_fn(environment=None, override=None):
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# 'empty markers are True' heuristic won't install extra deps.
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return not marker.strip()
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marker_fn.__doc__ = marker
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return marker_fn
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def interpret(marker, environment=None, override=None):
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return compile(marker)()
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