#2983: Proposal to add util.parseargs
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Reporter: athomas | Owner: jonas
Type: defect | Status: new
Priority: high | Milestone: 0.10
Component: general | Version: 0.9.4
Severity: normal | Resolution:
Keywords: |
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Comment (by athomas):
How about this implementation. It handles normal Python basic types and
has the same calling convention and return type as the above.
{{{
#!python
def parse_args(args):
import compiler
def get_value(node):
if isinstance(node, compiler.ast.Name):
return node.name
elif isinstance(node, compiler.ast.Const):
return node.value
elif isinstance(node, compiler.ast.Tuple) or \
isinstance(node, compiler.ast.List):
return tuple([get_value(el) for el in node.nodes])
elif isinstance(node, compiler.ast.Dict):
return dict([(get_value(k), get_value(v)) for k, v in
node.items])
raise ValueError('invalid arguments near %s' % str(node))
largs = []
kwargs = {}
expr = compiler.parse('mock(%s)' % args, 'eval')
for node in expr.getChildNodes()[0].args:
if isinstance(node, compiler.ast.Keyword):
kwargs[node.name] = get_value(node.expr)
else:
largs.append(get_value(node))
return largs, kwargs
}}}
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Ticket URL: <http://projects.edgewall.com/trac/ticket/2983>
The Trac Project <http://trac.edgewall.com/>
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