Moving the dictionary to a class or module scope will result in a very subtle bug where the variants might appear as they get added to the mutable dictionary in different requests.
Python's default data structures are mutable, which is a sensible design decision in terms of least surprise, but actually understanding the initialisation and state of a mutable structure is hard; especially in a language like Python that freely allows reassignment and executes like a script rather than a compiled language.
"Medical science has never faced a more inscrutable, more mutable, or more ruthless adversary," says Dr Marks.He would know.
He recognised that species were mutable, and he also proposed that traits could be inherited.
Beneath the drive for conquest lay horror at the prospect of self-recognition, of being forced to acknowledge the arbitrary and mutable character of one's own deep values and totems.Money is just such an arbitrary and mutable totem.
Political analysis based on personality types, which was popular in the 1950s with Theodor Adorno's typology of the "authoritarian personality" and so on, largely broke off in the 1960s because of the trenchant critique that most people's understanding of politics and ideology is so confused, mutable and inconsistent that it can't be meaningfully connected to something as stable as personality.
HIV is what is known as a retrovirus (this means it copies its genes into a host's cell nuclei using a mechanism called reverse transcription) but drugs that had been developed in the past to protect against retroviruses did not work well against it, partly because it is extremely mutable and could thus evolve to avoid their attentions.
As Colorado's experience with edibles shows, officials struggle to keep up with such a mutable market.
In the process, Mr Field has often shown how mutable supposedly entrenched party positions can be: the evolving welfare dispute is less a dogged confrontation between left and right than a sinuous political dance.A growing likelihood of coalition government, as the British vote fractures, will make Mr Field's style of politics all the more necessary.
Reptilian classification is highly mutable.
To Cahun, identity was mutable, or unstable.
