dataframe - 使用烧瓶上传并显示数据框 | AttributeError: 'builtin_function_or_method' 对象没有属性 'replace'

Question

我正在尝试通过烧瓶上传和显示数据框，当我想显示它时，它说

AttributeError: 'builtin_function_or_method' object has no attribute 'replace'. 

我在 YT 上找到了这段代码，我不知道它是否正确。有人可以帮助我吗？

from flask import Flask, render_template, request
from werkzeug.utils import secure_filename
import pandas as pd
import csv

def reencode(file):
    for line in file:
       yield line.decode('windows-1250').encode('utf-8')

@app.route("/data")
def data():
  df = pd.read_csv("Sistema_de_Stock.csv", encoding='latin-1')
  df = df.drop(df.loc['stock al cargar':].columns, axis=1)
  df.to_html('data.html')
  with open("data.html", 'r', encoding='latin-1') as file:
    file = file.read
  **file = file.replace("<table","<table class='rwd-table'")**
  with open("data.html","w") as file_write:
    file_write.write(html + file)
  data = os.startfile("data.html")

  return data

标签： dataframeflaskreplaceattributeerror

Answer 1

file.read是一个方法，所以你应该调用该方法。此外，您可能希望重命名变量以明确这不是文件处理程序：

with open('data.html', 'r', encoding='latin-1') as file:
    #    call the method ↓
    file_data = file.read().replace('<table', "<table class='rwd-table'")
  with open('data.html', 'w') as file_write:
    file_write.write(html + file_data)
  data = os.startfile('data.html')