def _get_full_name(self, node):
try:
func = utils.safe_infer(node.func)
if func.name.__str__() == 'Uninferable':
return
except Exception:
func = None
if func is None:
return
ret = []
depth = 0
while func is not None:
depth += 1
if depth > self.max_depth:
# Prevent endless loop
return
try:
ret.append(func.name)
except AttributeError:
return
func = func.parent
# ret will contain the levels of the function from last to first (e.g.
# ['walk', 'os']. Reverse it and join with dots to get the correct
# full name for the function.
return '.'.join(ret[::-1])
def visit_call(self, node):
func = utils.safe_infer(node.func)
if isinstance(func, astroid.BoundMethod) and func.name == 'format':
# If there's a .format() call, run the code below
if isinstance(node.func.expr, (astroid.Name, astroid.Const)):
# This is for:
# foo = 'Foo {} bar'
# print(foo.format(blah)
for inferred in node.func.expr.infer():
if not hasattr(inferred, 'value'):
# If there's no value attribute, it's not worth
# checking.
continue
if not isinstance(inferred.value, six.string_types):
# If it's not a string, continue
continue
if '!r}' in inferred.value:
self.add_message('E1322',
node=inferred,
args=inferred.value)
if BAD_FORMATTING_SLOT.findall(inferred.value):
if self.config.un_indexed_curly_braces_always_error or \
sys.version_info[:2] < (2, 7):
self.add_message('E1320',
node=inferred,
args=inferred.value)
elif six.PY2:
self.add_message('W1320',
node=inferred,
args=inferred.value)
try:
# Walk back up until no parents are found and look for a
# logging.RootLogger instance in the parent types
ptr = node
while True:
parent = ptr.parent
for inferred in parent.func.expr.infer():
try:
instance_type = inferred.pytype().split('.')[0]
except TypeError:
continue
if instance_type == 'logging':
self.add_message(
'E1323',
node=node,
args=node.as_string(),
)
break
ptr = parent
except (AttributeError, InferenceError, NameInferenceError):
pass
elif not hasattr(node.func.expr, 'value'):
# If it does not have an value attribute, it's not worth
# checking
return
elif isinstance(node.func.expr.value, astroid.Name):
# No need to check these either
return
elif BAD_FORMATTING_SLOT.findall(node.func.expr.value):
if self.config.un_indexed_curly_braces_always_error or \
sys.version_info[:2] < (2, 7):
msgid = 'E1320'
else:
msgid = 'W1320'
self.add_message('E1320', node=node, args=node.func.expr.value)