[Tutor] Correct style of line break when chaining methods

[Alan Gauld]

On 10/07/2021 16:38, Manprit Singh wrote:

> The way i have done it is given below :
> 
> csknum = (crick.iloc[:, [3, 4, 5]]
>                   .isin(["CSK"])
>                   .all(axis="columns")
>                   .sum())
> 

I don't believe Python has any standard idiom for breaking
chained lines but Smalltalk does so you might copy that.
Smalltalk aligns the dot operators:

csknum = (crick.iloc[:, [3, 4, 5]]
               .isin(["CSK"])
               .all(axis="columns")
               .sum())

It makes it easier to identify the object to which
the chain belongs.

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Alan G
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