@ -1,4 +1,4 @@
# $Id: params_flat.py,v 1.2 2011-03-10 19:20:35 wirawan Exp $
# $Id: params_flat.py,v 1.3 2011-09-07 15:05:54 wirawan Exp $
#
# wpylib.params.params_flat module
# Created: 20100930
@ -175,10 +175,17 @@ class Parameters(dict):
"""
if self . _no_null_ :
for ov in self . _list_ :
if key in ov and ov [ key ] != None : return ov [ key ]
try :
v = ov [ key ]
if v != None : return v
except KeyError :
pass
else :
for ov in self . _list_ :
if key in ov : return ov [ key ]
try :
return ov [ key ]
except KeyError :
pass
# Otherwise: -- but most likely this will return attribute error:
return dict . __getattribute__ ( self , key )
def __setattr__ ( self , key , value ) :
@ -196,10 +203,17 @@ class Parameters(dict):
def __getitem__ ( self , key ) :
if self . _no_null_ :
for ov in self . _list_ :
if key in ov and ov [ key ] != None : return ov [ key ]
try :
v = ov [ key ]
if v != None : return v
except KeyError :
pass
else :
for ov in self . _list_ :
if key in ov : return ov [ key ]
try :
return ov [ key ]
except KeyError :
pass
raise KeyError , " Cannot find parameter ` %s ' " % key
#def __setitem__(self, key, value): # -- inherited from dict
# self._prm_[key] = value
@ -274,17 +288,41 @@ class Parameters(dict):
# then _opts_ excess-keyword parameters (see example of doit() above)
if kwparam in localvars :
_opts_ = localvars [ kwparam ]
contexts . append ( _opts_ )
if _opts_ != None :
# add this minimal check for a dict-like behavior rather
# than encountering a strange error later
if not hasattr ( _opts_ , " __getitem__ " ) or not hasattr ( _opts_ , " __contains__ " ) :
raise TypeError , \
( " The keyword parameter (variable/parameter ` %s ' in function ` %s ' ) " +
" is not a dict-like object) " ) \
% ( kwparam , caller . f_code . co_name )
contexts . append ( _opts_ )
else :
_opts_ = { }
# then opts, an explicitly-defined argument which contain a set of parameters
if userparam in localvars :
opts = localvars [ userparam ]
contexts . append ( opts )
if opts != None :
# add this minimal check for a dict-like behavior rather
# than encountering a strange error later
if not hasattr ( opts , " __getitem__ " ) or not hasattr ( opts , " __contains__ " ) :
raise TypeError , \
( " The user parameter (variable/parameter ` %s ' in function ` %s ' ) " +
" is not a dict-like object) " ) \
% ( userparam , caller . f_code . co_name )
contexts . append ( opts )
else :
opts = { }
if userparam in _opts_ :
contexts . append ( _opts_ [ userparam ] )
opts = _opts_ [ userparam ]
if opts != None :
# add this minimal check for a dict-like behavior rather
# than encountering a strange error later
if not hasattr ( opts , " __getitem__ " ) or not hasattr ( opts , " __contains__ " ) :
raise TypeError , \
( " The user parameter (variable/parameter ` %s ' in function ` %s ' ) " +
" is not a dict-like object) " ) \
% ( userparam , caller . f_code . co_name )
contexts . append ( opts )
# then this own Parameters data will come here:
contexts . append ( self )