Rule of order for dot operators?
Peter Otten
__peter__ at web.de
Sat May 16 15:34:20 EDT 2015
C.D. Reimer wrote:
> Greetings,
>
> Noobie question regarding a single line of code that transforms a URL
> slug ("this-is-a-slug") into a title ("This Is A Slug").
>
> title = slug.replace('-',' ').title()
>
> This line also works if I switched the dot operators around.
>
> title = slug.title().replace('-',' ')
>
> I'm reading the first example as character replacement first and title
> capitalization second, and the second example as title capitalization
> first and character replacement second.
>
> Does python perform the dot operators from left to right or according to
> a rule of order (i.e., multiplication/division before add/subtract)?
You can find out yourself by using operations where the order does matter:
"Test".upper().lower()
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