# Passing a dict from Python to Julia
**URL:** https://discourse.julialang.org/t/passing-a-dict-from-python-to-julia/116914
**Category:** General Usage
**Tags:** question, package, pythoncall
**Created:** [July 11, 2024, 2:28pm UTC](https://discourse.julialang.org/t/passing-a-dict-from-python-to-julia/116914 "2024-07-11T14:28:30Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [July 11, 2024, 2:28pm UTC](https://discourse.julialang.org/t/passing-a-dict-from-python-to-julia/116914/1 "2024-07-11T14:28:30Z")
How can I pass a Python dict to Julia using PythonCall?
This is not working:
```julia
from juliacall import Main as jl, convert as jlconvert
setdict = {
"log_level": 1,
"area": 20.0,
"solver": "IDA"
}
jlstore = jl.seval("(k, v) -> (@eval $(Symbol(k)) = $v; return)")
jlstore("set", setdict)
print(jl.seval(set))
```
Error message:
```julia
In [1]: %run test_dict2struct.py
Detected IPython. Loading juliacall extension. See https://juliapy.github.io/PythonCall.jl/stable/compat/#IPython
Activating project at `~/repos/pykitesim`
---------------------------------------------------------------------------
JuliaError Traceback (most recent call last)
~/repos/pykitesim/test_dict2struct.py in
15 jlstore("set", setdict)
16
---> 17 print(jl.seval(set))
~/repos/pykitesim/.pixi/envs/default/lib/python3.8/site-packages/juliacall/ __init__.py in seval(self, expr)
23 return ValueBase. __dir__ (self) + self._jl_callmethod($(pyjl_methodnum(pyjlmodule_dir)))
24 def seval(self, expr):
---> 25 return self._jl_callmethod($(pyjl_methodnum(pyjlmodule_seval)), expr)
26 """, @ __FILE__ (), "exec"), jl. __dict__ )
27 pycopy!(pyjlmoduletype, jl.ModuleValue)
JuliaError: cannot convert this Python 'type' to a Julia 'String'
Stacktrace:
[1] error(s::String)
@ Base ./error.jl:35
[2] macro expansion
@ ~/.julia/packages/PythonCall/S5MOg/src/Convert/pyconvert.jl:357 [inlined]
[3] macro expansion
@ ~/.julia/packages/PythonCall/S5MOg/src/Core/Py.jl:132 [inlined]
[4] pyconvert(::Type{String}, x::Py)
@ PythonCall.Convert ~/.julia/packages/PythonCall/S5MOg/src/Convert/pyconvert.jl:372
[5] pyjlmodule_seval(self::Module, expr::Py)
@ PythonCall.JlWrap ~/.julia/packages/PythonCall/S5MOg/src/JlWrap/module.jl:13
[6] _pyjl_callmethod(f::Any, self_::Ptr{PythonCall.C.PyObject}, args_::Ptr{PythonCall.C.PyObject}, nargs::Int64)
@ PythonCall.JlWrap ~/.julia/packages/PythonCall/S5MOg/src/JlWrap/base.jl:66
[7] _pyjl_callmethod(o::Ptr{PythonCall.C.PyObject}, args::Ptr{PythonCall.C.PyObject})
@ PythonCall.JlWrap.Cjl ~/.julia/packages/PythonCall/S5MOg/src/JlWrap/C.jl:63
```
---
### Author:  [@cjdoris](https://discourse.julialang.org/u/cjdoris)
#### Post date: [July 11, 2024, 3:41pm UTC](https://discourse.julialang.org/t/passing-a-dict-from-python-to-julia/116914/2 "2024-07-11T15:41:40Z")
> [@ufechner7](#):
>
> `print(jl.seval(set))`
You meant `"set"` (the string) not `set` (the type).
---
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [July 11, 2024, 5:38pm UTC](https://discourse.julialang.org/t/passing-a-dict-from-python-to-julia/116914/3 "2024-07-11T17:38:01Z")
This works:
```julia
from juliacall import Main as jl, convert as jlconvert
setdict = {
"log_level": 1,
"area": 20.0,
"solver": "IDA"
}
jlstore = jl.seval("(k, v) -> (@eval $(Symbol(k)) = $v; return)")
jlstore("set", setdict)
print(jl.set)
```
Most of the time you should not use `jl.seval`, but sometimes it is needed. Not so clear to me when it is needed.