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import functools
class FakeCache:
"""
An object that mimics just enough of Flask-Caching's API to be compatible
with our needs, but does nothing.
"""
def get(self, key):
return None
def set(self, key, value):
return None
def delete(self, key):
return None
def first(iterable, default=None, key=None):
"""
Return the first truthy value of an iterable.
Shamelessly stolen from https://github.com/hynek/first
"""
if key is None:
for el in iterable:
if el:
return el
else:
for el in iterable:
if key(el):
return el
return default
sentinel = object()
def getattrd(obj, name, default=sentinel):
"""
Same as getattr(), but allows dot notation lookup
Source: http://stackoverflow.com/a/14324459
"""
try:
return functools.reduce(getattr, name.split("."), obj)
except AttributeError as e:
if default is not sentinel:
return default
raise
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