Reuse python code when writing books splitted in different qmd file

[laguill]

Description

Hello,
I am writing a book with Quarto that consists of 2 qmd files with Python code.
I decided to split my code into two files for better readability.

Is there a good way to reuse code from the first notebook in the second one, such as importing libraries and defining lists that I have defined at the end of the first notebook?

Or can I only copy and paste the code and refer to the corresponding parts of file 1 in file 2?

Thank for your help.

Here is an exemple:

Notebook 1 (Data cleaning)

---
title: Data cleaning
---
```python
import pandas as pd
from pathlib import Path
```
List of columns to keep

```python
saved_columns = [1,2,3]
```

Notebook 2 (Data analysis)

---
title = Data Analysis
---

import same packages as in Notebook 1

load save_colums from Notebook 1

```pyhton
data = Path("data/path.csv")
df = pd_read(data, usecols = saved_columns)
df.head()
```

[mcanouil]

Put your code in a Python script, or put your code cell in a Quarto document, then respectively source or include (https://quarto.org/docs/authoring/includes.html).

[laguill]

Ok so embed is if I want to reuse output of a cell

And if i want to reuse a cell I should use include but include can only import the whole document ?
I cannot define a part ?

[mcanouil]

Make your code more modular or try to come up with a filter.

Maybe the following filter extension could help but it can only reuse what's there.

https://github.com/mcanouil/quarto-div-reuse

[laguill]

I followed your advice and saved the code block in distinct qmd file in

_saved-code/_import-packages.qmd

```{python}
#| echo: false
import pandas as pd
import seaborn as sns

So I now I can just call it with

{{< include _saved-code/_import-packages.qmd >}}

Is it possible to change code execution ? echo = true seams to not working

{{< include _saved-code/_import-packages.qmd echo=true >}}

[mcanouil]

I suggest to read the relevant documentation, there no arguments other than the file to be "copied and pasted'.

[mcanouil]

Eventually, take a look at https://github.com/gadenbuie/quarto-partials

[laguill]

Thank you very much for you support
I just saved the file as py file and now I can change the ouput with

```{python}
#|echo: false
{{< include _saved-code/_import-packages.py >}}

```