aad559d86b
potential confusion.
* Detail of the important changes:
1) by default now the function's local variables are not included in the
lookup chain. Use _localvars_ flag if you insist on doing that; but
be aware of the caveat (see Parameters' documentation).
2) the default _kwparam_ and _userparam_ names are now passed on to the
child Parameters object instead of the override values given through
the _create_ function argument.
Rationale: To begin with, the default names defined during the creation
of the parent Parameters object should be used by *all* the relevant
functions.
Overrides should be regarded as exceptional rather than common cases.
3) Value overrides (_kwparam_, _userparam_, etc.) in _create_ must now
be specified in keyword=value manner rather than as positional argument.
Rationale: Those overrides must be made conspicuous.
The keyword=value approach also makes the code more resilient to minor
API changes.
All unnamed parameters are supposed to be low-priority defaults.
64 lines
1.3 KiB
Python
64 lines
1.3 KiB
Python
# $Id: params_flat_test.py,v 1.2 2011-09-09 18:58:48 wirawan Exp $
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# 20100930
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from wpylib.params import flat as params
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global_defaults = params(
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nbasis= 275,
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npart= 29,
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deltau= 0.01,
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)
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def test1():
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defaults = {
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'nbasis': 320,
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'npart': 37,
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'deltau': 0.025,
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}
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p = params(defaults, nbasis=332)
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nbasis = 327
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print "test1()"
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print "self-defined values = ", p
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print "nbasis = ", p.nbasis
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print "npart = ", p.npart
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print "deltau = ", p.deltau
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p.deltau = 0.01
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print "new deltau = ", p.deltau
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def test2(**_opts_):
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p = global_defaults._create_(_localvars_=1)
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nbasis = 327
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print "test2()"
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print "self-defined values = ", p
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print "nbasis = ", p.nbasis # gives 275 -- although _localvars_ already requested.
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print "npart = ", p.npart
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print "deltau = ", p.deltau
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p.deltau = 0.01
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print "new deltau = ", p.deltau
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def test2b(**_opts_):
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nbasis = 327
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p = global_defaults._create_(_localvars_=1)
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nbasis = 3270
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print "test2()"
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print "self-defined values = ", p
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print "nbasis = ", p.nbasis # gives 327. Changes to local vars won't alter anything.
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print "npart = ", p.npart
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print "deltau = ", p.deltau
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p.deltau = 0.01
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print "new deltau = ", p.deltau
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if __name__ == "__main__":
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test1()
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test2()
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test2b()
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