How to use multiple files loaded with file_uploader

Using Streamlit
1

Hi,
I would like to know how can I access the files uploaded with st.file_uploader.
I wrote these lines of code:

 with st.sidebar:
     path = st.file_uploader("Choose a CSV file", accept_multiple_files=True)
     for uploaded_file in path:
         uploaded_file = pd.read_csv(uploaded_file, sep=';', decimal=',')

I am trying to load 4 .csv files. They are loaded but then I don’t know how can I access them to keep working on those files.
For example, one of those files is called “vertical.csv”. How can I use that specific file after being imported?

2

if you set accept_multiple_files = True
you will get a list of files.
so if you want to deal the files, you can do like this:

for i in range(len(path)):
    df = pd.read_csv(path[i])
    st.table(df)

you will see 4 csv files be printed in your browser.

2 Likes
3

Thank you for your answer.
I tried to use your code but it didn’t work very well. The following error was shown EmptyDataError: No columns to parse from file.
I know that if I set accept_multiple_files = True I will get a list of files. The problem is, for example, I load 4 .csv files. Then I want to get access to each file. For example, one is called “vertical.csv”. How can I access that specific file to remove its first column? Is there any way to choose the file by its name after load all the files?

4

you can get the file name by do this:
st.write(path[i].name)

1 Like
5

Thank you very much

6

This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.