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# Check for presence of additional parameters in other
# function
if not (reference_varargs or reference_varkw):
for other_arg in other_args:
if other_arg not in reference_args:
raise AutodiscoveryCheckerError(
'Argument ""%s""'
' in other function %s does not exist in the'
' reference function %s' %
(other_arg, other_object, reference_object))
# Check sorting of arguments
for reference_arg, other_arg in map(
None, reference_args, other_args):
if not((reference_arg == other_arg) or
(reference_arg is None and
(reference_varargs or reference_varkw)) or
(other_arg is None and
(other_args or other_varargs))):
raise AutodiscoveryCheckerError(
'Argument ""%s"" in'
' the other function is in the position of'
' argument ""%s"" in the reference function, i.e.'
' the order of arguments is not respected' %
(other_arg, reference_arg))
if len(reference_defaults) != len(other_defaults) and not (
reference_args or reference_varargs or
other_args or other_varargs):
raise AutodiscoveryCheckerError(
""Default parameters in""
"" the other function are not corresponding to the""
"" default of parameters of the reference function"")
else:
# We are comparing apples and oranges!
raise AutodiscoveryCheckerError(
'%s (the reference object)'
' is a function while %s (the other object) is not a'
' function' % (reference_object, other_object))
except AutodiscoveryCheckerError as err:
try:
sourcefile = inspect.getsourcefile(other_object)
sourceline = inspect.getsourcelines(other_object)[1]
except IOError:
# other_object is not loaded from a real file
sourcefile = 'N/A'
sourceline = 'N/A'
raise AutodiscoveryCheckerError(
'Error in checking signature for'
' ""%s"" as defined at ""%s"" (line %s): %s' %
(object_name, sourcefile, sourceline, err))"
4634,"def check_arguments_compatibility(the_callable, argd):
""""""
Check if calling the_callable with the given arguments would be correct
or not.
>>> def foo(arg1, arg2, arg3='val1', arg4='val2', *args, **argd):
... pass
>>> try: check_arguments_compatibility(foo, {'arg1': 'bla', 'arg2': 'blo'})
... except ValueError as err: print 'failed'
... else: print 'ok'
ok
>>> try: check_arguments_compatibility(foo, {'arg1': 'bla'})
... except ValueError as err: print 'failed'
... else: print 'ok'
failed
Basically this function is simulating the call:
>>> the_callable(**argd)
but it only checks for the correctness of the arguments, without
actually calling the_callable.
:param the_callable: the callable to be analyzed.
:type the_callable: function/callable
:param argd: the arguments to be passed.
:type argd: dict
:raise ValueError: in case of uncompatibility
""""""
if not argd:
argd = {}
args, dummy, varkw, defaults = inspect.getargspec(the_callable)
tmp_args = list(args)
optional_args = []
args_dict = {}
if defaults:
defaults = list(defaults)
else:
defaults = []
while defaults:
arg = tmp_args.pop()
optional_args.append(arg)
args_dict[arg] = defaults.pop()
while tmp_args:
args_dict[tmp_args.pop()] = None
for arg, dummy_value in iteritems(argd):
if arg in args_dict: