def is_requests_func(node: NodeNG) -> bool:
"""
Checks if the node represents a requests HTTP call function.
Examples are: requests.get/post/..., requests.Session.get/post/...
"""
# simple case
if isinstance(node, nodes.Attribute) and node.attrname in SESSION_METHODS:
if (
is_requests_api_module(node.expr)
and node.attrname not in SESSION_ONLY_METHODS
) or is_requests_session(node.expr):
return True
if isinstance(node, nodes.Name):
_, assigns = node.lookup(node.name)
for assign in assigns:
if (
isinstance(assign, nodes.ImportFrom)
and assign.modname in REQUESTS_API_MODULES
and assign.real_name(node.name) in HTTP_METHOD_FUNCTIONS
):
return True
if hasattr(assign, 'assign_type'):
assign = assign.assign_type()
if isinstance(assign, nodes.Assign) and is_requests_func(assign.value):
return True
return False
def is_requests_api_module(node: NodeNG) -> bool:
"""True if node represents the requests or requests.api module."""
if isinstance(node, (nodes.Name, nodes.Expr)):
_, assigns = node.lookup(node.name)
for assign in assigns:
if (
isinstance(assign, (nodes.Import, nodes.ImportFrom))
and assign.real_name(node.name) in REQUESTS_API_MODULES
):
return True
return False
def _lookup(node: NodeNG) -> List[NodeNG]:
"""Given a name or attribute node, returns the assignments to that name/attr."""
if isinstance(node, nodes.Name):
return node.lookup(node.name)[1]
if isinstance(node, nodes.Attribute):
try:
obj = next(node.expr.infer())
except InferenceError:
return []
if isinstance(obj, bases.Instance):
try:
return obj.getattr(node.attrname)
except AttributeInferenceError:
return []
return []