system stack: AMD64 hardware Debian 11 linux MATE desktop & terminal println("What is your name?") name2 = readln(); println( "Welcome to Julia $name2") What is your name? ERROR: LoadError: UndefVarError: readln not defined in Main Suggestion: check for spelling errors or missing imports. St…

Hi @dave3897 , welcome to the forum. You’re looking for readline, not readln: help?> readline search: readline readlines readlink eachline readdir @inline real hardlink readline(io::IO=stdin; keep::Bool=false) readline(filename::AbstractString; keep::Bool=false) Read a single line of text fr…

I never thought about it before, but from a UX perspective this really seems not to be ideal. Is there any reason why it is println and readline instead of println and readln or printline and readline? Is it worth a bug report?

Is it worth a bug report? Nope, even though I agree that the mismatch is a shame. Take a read of: [image] PSA: Julia is not at that stage of development anymore Internals & Design You heard about this brand new exciting programming language called Julia and…

Sure, we can’t rename one of the functions in Julia 1. But we could hypothetically rename one of both in Julia 2 if it ever happens. Alternatively in Julia 1: We could create an alias function. An issue can also serve to just document a problem and can help to find the solution. That being said bo…

IMO this might actually be worth an issue, API consistency is good to strive for and this is a case where we could get it by adding one extra function (and deprecate the other). (As a sidenote, println is a pretty badly named function since it doesn’t print a line, it prints some text followed by a …

True, backwards compatibility is VERY important, but we see a lot of deprecations+alias being used in established languages like js too, so it could be worth a try.

Definitely not the most important issue ever created, but now here it is: Inconsistent names `println` and `readline` · Issue #61768 · JuliaLang/julia · GitHub

Congratulation dave3897 , you contributed to the development of the Julia language :grin: :grin:

Readln() missing in debian 11 Main

General Usage

odow May 12, 2026, 2:23am 4

Is it worth a bug report?

Nope, even though I agree that the mismatch is a shame. Take a read of:

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Readln() missing in debian 11 Main

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