I’m confused by this table in the docs. The last column is identical for rows 1,3 (import MyModule and using MyModule), which seems inconsistent with the previous paragraph: import also differs from using in that functions imported using import can be extended with new methods.

The last statement means that functions imported via import are available for extension without the additional module qualifier, i.e. it refers to the last column of rows 2, 4 and 5.

Thanks @Vasily_Pisarev , I’m just wondering why is column 3 the same for rows 1 and 3, sorry if that wasnt clear

This was also recently discussed: [image] Why does code in a package use "using" and "import"? New to Julia Hi, In looking at how Julia packages are implemented, I see a common idiom that I don’t quite understand. For example, if you look at YaoBase/src/YaoBase.jl at http…

[image] heliosdrm: This was also recently discussed: Aha, so what I was trying to say was all functions from a given module are always available for method extension in their module’s scope . So, if the module Foo has been brought into scope of module Bar (with using or import ), its functi…

Yes, the nuance is that the paragraph of the docs says: functions imported using import And this happens only in rows 4 and 5 (to be compared with row 2, where you are using functions). In rows 1 and 3 you are not importing/using functions, but the module that contains them.

Module import vs using

New to Julia

heliosdrm October 20, 2020, 9:33pm 4

This was also recently discussed:

2 Likes

Topic		Replies	Views
Why does code in a package use "using" and "import"? New to Julia	13	1957	October 19, 2020
"Under the hood" difference between import and using Internals & Design question , module	9	2095	September 11, 2023
When to use `using Package: function` and when to use `import Package: function` General Usage	20	1536	June 5, 2024
Clarification on the scope of import/using/include New to Julia question , scope , import	1	114	July 19, 2024
Confused about intent of using/import (docs) General Usage module	5	577	January 26, 2021

Module import vs using

Related topics