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[Experiement] Auto-expand signature when **kwarg passed to other functions #14857

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[Experiement] Auto-expand signature when **kwarg passed to other functions #14857

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18 changes: 18 additions & 0 deletions lib/matplotlib/pyplot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1038,7 +1038,25 @@ def subplot(*args, **kwargs):

return a

def inherit(target):

def decorate(function):
sig = inspect.signature(target)
parameters = sig.parameters

current_sig = inspect.signature(function)
current_params = [(k,v) for k,v in current_sig.parameters.items()]
if current_params[-1][1].kind == inspect.Parameter.VAR_KEYWORD:
del current_params[-1]
current_params.extend([(k,v) for k,v in parameters.items()])
new_sig = inspect.Signature([v for k,v in current_params])
function.__signature__ = new_sig
return function

return decorate


@inherit(figure)
def subplots(nrows=1, ncols=1, sharex=False, sharey=False, squeeze=True,
subplot_kw=None, gridspec_kw=None, **fig_kw):
"""
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