Hello all, I am regularly writing programs that parses ever changing lists of variables. The method I do it is by loading it in to a dictionary of the form: d['variable_name']=variable_value
So when it comes to a method that uses a required set of variables I have to make tens of the following statements if d.has_key('swr'): swr = float(d['swr']) else: print 'ERROR: COREYTAB variable swr not specified'; iErr += 1 When I thought a pythonic way of doing it would be to use a variable variable.(sorry that sounds ridiculous) but it would work like this: _start_code_________________________________________________________________ ___ # make all input parameters equal the string of themselves type = 'type'; tabnum = 'tabnum'; coreyw = 'coreyw'; coreyow = 'coreyow' swc = 'swc'; swr = 'swr'; kro_swc = 'kro_swc'; krw_swr = 'krw_swr' coreyg = 'coreyg'; coreygo = 'coreygo'; sgi = 'sgi'; sgc = 'sgc' sgr = 'sgr'; kro_sgc = 'kro_sgc'; krg_swc = 'krg_swc' # error check parameters existence and if there, over-write their info # if there are integer values, then must remember to re-typecast them later for var in (type, tabnum, coreyw, coreyow, swc, swr, kro_swc, krw_swr, coreyg, coreygo, sgi, sgc, sgr, kro_sgc, krg_swc): if d.has_key(var): if isnumeric(d[var]): var = float(d[var]) else: var = d[var] else: print 'ERROR: getcorey() parameter '+str(var)+' not specified' iErr += 1 _end_code___________________________________________________________________ ___ Since this doesn't work, any other ideas out there? Many thanks in advance, Gavin
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