如何在 Streamlit 中使用 split()

Question

我有一個腳本可以打開一個文本文件，讀取列表中的行，然后使用.split()拆分行。

我想在 Streamlit 中使用相同的功能，但split會引發異常：

類型錯誤：需要類似字節的 object，而不是“str”

這是評論中提到的一個最小示例：

import streamlit as st
import pandas as pd

# TIlte of the App
st.title(
"MWE")

#Side bar
st.sidebar.subheader("File Upload")

semi_colon = -5
entry_id = -4

#File upload
uploaded_log = st.sidebar.file_uploader(label="Upload your Log File",type='txt')

if uploaded_log is not None:
    print(uploaded_log)
    try:
    print("Open And readlines")
    eeprom = uploaded_log.readlines()

    print("create lists from the logfiles")
    ##create lists from the logfiles 
    sip_list = [x for x in eeprom if (x[entry_id] == ord('1') and x[semi_colon] == ord(';'))]
    slope_list = [x for x in eeprom if (x[entry_id] == ord('2') and x[semi_colon] == ord(';'))]
    cal1_list = [x for x in eeprom if (x[entry_id] == ord('3') and x[semi_colon] == ord(';'))]
    
    group_of_lists = [sip_list,slope_list,cal1_list]
    group_new = [[l.split(";") for l in group] for group in group_of_lists]

    except:
    print("Error occured")

else:
st.write('Please upload a file to the app')

Answer 1

感謝您的每一條評論，我想我已經找到了答案。 代替：

 group_new = [[l.split(";") for l in group] for group in group_of_lists]

它應該是：

group_new = [[str(l).split(";") for l in group] for group in group_of_lists]

這樣做的原因是這些行仍然是類似字節的對象，首先需要將它們轉換為字符串才能在其上使用字符串函數。 我也找到了關於它的社區帖子： https://discuss.streamlit.io/t/upload-text-file-which-needs-to-be-read-line-by-line/7714/2