Path 1: 2 calls (1.0)

False (1) True (1) 

1def has_request_context() -> bool:
2    """If you have code that wants to test if a request context is there or
3    not this function can be used.  For instance, you may want to take advantage
4    of request information if the request object is available, but fail
5    silently if it is unavailable.
6
7    ::
8
9        class User(db.Model):
10
11            def __init__(self, username, remote_addr=None):
12                self.username = username
13                if remote_addr is None and has_request_context():
14                    remote_addr = request.remote_addr
15                self.remote_addr = remote_addr
16
17    Alternatively you can also just test any of the context bound objects
18    (such as :class:`request` or :class:`g`) for truthness::
19
20        class User(db.Model):
21
22            def __init__(self, username, remote_addr=None):
23                self.username = username
24                if remote_addr is None and request:
25                    remote_addr = request.remote_addr
26                self.remote_addr = remote_addr
27
28    .. versionadded:: 0.7
29    """
30    return _cv_request.get(None) is not None