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Frontmatter

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Author 1
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begin
import Pkg
Pkg.activate(mktempdir())
Pkg.add("CSV")
using CSV
end
❔
  Activating new project at `/tmp/jl_8e5tiD`
    Updating registry at `~/.julia/registries/General.toml`
   Resolving package versions...
   Installed WeakRefStrings ── v1.4.2
   Installed WorkerUtilities ─ v1.6.1
   Installed FilePathsBase ─── v0.9.24
   Installed CSV ───────────── v0.10.15
    Updating `/tmp/jl_8e5tiD/Project.toml`
  [336ed68f] + CSV v0.10.15
    Updating `/tmp/jl_8e5tiD/Manifest.toml`
  [336ed68f] + CSV v0.10.15
  [944b1d66] + CodecZlib v0.7.8
  [34da2185] + Compat v4.16.0
  [9a962f9c] + DataAPI v1.16.0
  [e2d170a0] + DataValueInterfaces v1.0.0
  [48062228] + FilePathsBase v0.9.24
  [842dd82b] + InlineStrings v1.4.3
  [82899510] + IteratorInterfaceExtensions v1.0.0
  [bac558e1] + OrderedCollections v1.8.0
  [69de0a69] + Parsers v2.8.1
  [2dfb63ee] + PooledArrays v1.4.3
  [aea7be01] + PrecompileTools v1.2.1
  [21216c6a] + Preferences v1.4.3
  [91c51154] + SentinelArrays v1.4.8
  [3783bdb8] + TableTraits v1.0.1
  [bd369af6] + Tables v1.12.0
  [3bb67fe8] + TranscodingStreams v0.11.3
  [ea10d353] + WeakRefStrings v1.4.2
  [76eceee3] + WorkerUtilities v1.6.1
  [56f22d72] + Artifacts
  [2a0f44e3] + Base64
  [ade2ca70] + Dates
  [9fa8497b] + Future
  [b77e0a4c] + InteractiveUtils
  [8f399da3] + Libdl
  [37e2e46d] + LinearAlgebra
  [56ddb016] + Logging
  [d6f4376e] + Markdown
  [a63ad114] + Mmap
  [de0858da] + Printf
  [9a3f8284] + Random
  [ea8e919c] + SHA
  [9e88b42a] + Serialization
  [fa267f1f] + TOML
  [8dfed614] + Test
  [cf7118a7] + UUIDs
  [4ec0a83e] + Unicode
  [e66e0078] + CompilerSupportLibraries_jll
  [4536629a] + OpenBLAS_jll
  [83775a58] + Zlib_jll
  [8e850b90] + libblastrampoline_jll
Precompiling project...
  ✓ WorkerUtilities
  ✓ FilePathsBase
  ✓ WeakRefStrings
  ✓ CSV
  4 dependencies successfully precompiled in 10 seconds (19 already precompiled)
13.3 s
IOBuffer(data=UInt8[...], readable=true, writable=false, seekable=true, append=false, size=85, maxsize=Inf, ptr=1, mark=-1)
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csv = IOBuffer("""name,height,age
Alice,1.60,21
Bob,1.83,40
Claire,1.75,31
David,1.50,25
Edith,1.68,30
""")
37.4 μs
Error message

ArgumentError: provide a valid sink argument, like `using DataFrames; CSV.read(source, DataFrame)`

Stack trace

Here is what happened, the most recent locations are first:

  1. read(source::IOBuffer, sink::Nothing; copycols::Bool, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    from CSV.jl:115
  2. read(source::IOBuffer, sink::Nothing)
    from CSV.jl:114
  3. from This cell: line 1
    data = CSV.read(csv)
data = CSV.read(csv)
👀 Reading hidden code
---
Error message

UndefVarError: t1 not defined

Stack trace

Here is what happened, the most recent locations are first:

  1. from This cell: line 1
    t1[1]
t1[1]
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---

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90.9 μs