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BF:Fix inspect.getargspec deprecation warning in Python 3 #1412

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14 changes: 10 additions & 4 deletions dipy/workflows/multi_io.py
Original file line number Diff line number Diff line change
Expand Up @@ -171,10 +171,16 @@ def io_iterator_(frame, fnc, output_strategy='append', mix_names=False):
args.remove('self')
del values['self']

specs = inspect.getargspec(fnc)
spargs = specs.args
spargs.remove('self')
defaults = specs.defaults
if sys.version_info[0] >= 3:
sig_object = inspect.signature(fnc)
params = sig_object.parameters.values()
spargs = [param.name for param in params if param.name is not 'self']
defaults = [param.default for param in params
if param.default is not inspect._empty]
else:
specs = inspect.getargspec(fnc)
spargs = specs.args[1:]
defaults = specs.defaults

len_args = len(spargs)
len_defaults = len(defaults)
Expand Down