# Deserialization in a Module()
**URL:** https://discourse.julialang.org/t/deserialization-in-a-module/115577
**Category:** General Usage
**Tags:** literate
**Created:** [June 12, 2024, 10:54pm UTC](https://discourse.julialang.org/t/deserialization-in-a-module/115577 "2024-06-12T22:54:45Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@ablaom](https://discourse.julialang.org/u/ablaom)
#### Post date: [June 12, 2024, 10:54pm UTC](https://discourse.julialang.org/t/deserialization-in-a-module/115577/1 "2024-06-12T22:54:45Z")
I don’t understand why the code below errors:
```julia
module TestMod
MyMod = Module()
Core.eval(
MyMod,
quote
using Serialization
f() = "hello"
const TARGET = joinpath(tempdir(), "greeter.jls")
serialize(TARGET, f)
end,
)
Core.eval(
MyMod,
quote
g = deserialize(TARGET)
print(g())
end,
)
end
end
```
```julia
ERROR: UndefVarError: `anonymous` not defined
Stacktrace:
[1] deserialize_module(s::Serialization.Serializer{IOStream})
@ Serialization /Applications/Julia-
< omitted detail >
[14] deserialize(filename::String)
@ Serialization /Applications/Julia-1.10.app/Contents/Resources/julia/share/julia/stdlib/v1.10/Serialization/src/Serialization.jl:811
[15] top-level scope
@ REPL[18]:17
[16] eval(m::Module, e::Any)
@ Core ./boot.jl:385
[17] top-level scope
@ REPL[18]:14
```
Here `anonymous` is the default name given by `Module()`, ie, `Module()` is the same as `Module(:anonymous)`.
Context: I have run into what looks like a “bug” in Literate.jl when the source code contains deserialisation. But on consulting with @asinghvi17 , he suggested the above MWE which indeed reproduces the same kind of error.
---
### Author:  [@asinghvi17](https://discourse.julialang.org/u/asinghvi17)
#### Post date: [June 12, 2024, 11:01pm UTC](https://discourse.julialang.org/t/deserialization-in-a-module/115577/2 "2024-06-12T23:01:00Z")
The MWE also causes errors when not wrapped in a module, i.e. executed directly from Main.
That being said, I can’t replicate this if `f` is not a function. That is to say, replacing `f()` with `f` and `g()` with `g` makes this work. That might point to a clearer specification of what’s going wrong.
---
### Author:  [@ablaom](https://discourse.julialang.org/u/ablaom)
#### Post date: [June 16, 2024, 8:11pm UTC](https://discourse.julialang.org/t/deserialization-in-a-module/115577/3 "2024-06-16T20:11:35Z")
Posted [issue](https://github.com/JuliaLang/julia/issues/54827) at Julia.