Directory not found when exporting csv file in deploy mode, but it works locally

Using Streamlit
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1

Hy, everyone

I’ve created a export csv with the following code:

path_pedidos = st.text_input('Type folder to export files', 'C:/Downloads')

if st.button('Export'):
            
        for file in os.scandir(path_pedidos):
            if file.name.endswith(".csv"):
                os.unlink(file.path)

        # create a new folder on Compras\Pedidos with the date and a subfolder with nome_pedido
        if not os.path.exists(path_pedidos+'/'+str(date.now().strftime('%Y-%m-%d'))+'/'+nome_pedido):
            os.makedirs(path_pedidos+'/'+str(date.now().strftime('%Y-%m-%d'))+'/'+nome_pedido)
            
        # EXPORT FILES
        for i in pedidos['cad_fg'].unique():
            pedidos[pedidos['cad_fg']==i][['cad_codigo','cad_cod_barra','cad_custo_medio','compra']].to_csv(path_pedidos+'/'+str(date.now().strftime('%Y-%m-%d'))+'/'+nome_pedido+'\\pedido_'+str(i)+'.csv', sep=';', decimal=',', encoding='latin_1', index=False)

User choose where to export the files and the code create a subfolder with current date and another subfolder with name of category (nome_pedido).
When I test this with streamlit run app.py, it works properly, but when I deploy it, I get the following error message:

FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Downloads'

It is the exactly same code and I’ve tested repeteadly and it does not work. Any ideas about the reason?

Thanks in advance for any help.

2

When you run the code locally with streamlit run app.py, it works because C:/Downloads exists on your local machine. However, when you deploy the app (likely on a cloud service or a different server), the folder C:/Downloads does not exist in that environment.

you can use a download button : st.download_button - Streamlit Docs

1 Like
3

Tnahk you very much!

I didn’t know about this button. You solved my problem. :smiley:

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