Question

我有一个Django views.py文件，在其中我渲染页面并基于模型创建对象。用于创建这些对象的数据来自我导入的python文件（price.py）中的函数。

由于某种原因，当我自己运行脚本时，我能够将字符串转换为浮点数（该值将类似于“ 4124.3123”）。但是，将这个确切的代码作为导入运行会导致值错误。

所以我的文件结构看起来像这样：

app
    views.py
    price.py
    models.py
    urls.py

错误：

  File "/home/joe/.local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/home/joe/.local/lib/python3.6/site-packages/django/core/handlers/base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/joe/.local/lib/python3.6/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/joe/Documents/pcbuilder/cpu/views.py", line 40, in homepage
    itemlist = canada('https://www.canadacomputers.com/index.php?cPath=4_64')
  File "/home/joe/Documents/pcbuilder/cpu/price.py", line 57, in canada
    PRICES = [float(str(i).split('>')[-3].strip('<strong/>').replace('*','').replace(',','.')[1:]) for i in PRICE]
  File "/home/joe/Documents/pcbuilder/cpu/price.py", line 57, in <listcomp>
    PRICES = [float(str(i).split('>')[-3].strip('<strong/>').replace('*','').replace(',','.')[1:]) for i in PRICE]
ValueError: could not convert string to float: '1.299.00'

以下是我的价格表中令人烦恼的清单信息：

def canada():
# some code

    PRICES = [float(str(i).split('>')[-3].strip('<strong/>').replace('*','').replace(',','.')[1:]) for i in PRICE]

#some code

#return type: dictionary

这是我的views.py：

from django.shortcuts import render
from django.http import HttpResponse
from .models import cpu
from django.template import loader
import os
import django
from .price import canada

def createobject(graph):
    import os
    os.environ.setdefault('DJANGO_SETTINGS_MODULE','pcbuilder.settings')

    import django
    django.setup()



    def add_data(data1, data2, data3):
        d, created = cpu.objects.get_or_create(item=data1, price=data2,website=data3)
        print("- Data: {0}, Created: {1}".format(str(d), str(created)))
        return d

    add_data('h','h','h')

    for i in graph:
        add_data(str(i), str(graph[i]), 'canada computers')






def homepage(request):

    print('Receiving CPUs')

    itemlist = canada('https://www.canadacomputers.com/index.php?cPath=4_64')

    print('Received CPUs')

    createobject(itemlist)


    items = cpu.objects.all
    template = loader.get_template('cpu.html')
    context = {
        'items': items,
    }
    return HttpResponse(template.render(context, request))

注意：canada（）是price.py中的函数

ValueError：无法将字符串转换为float：'1.299.00'Django

0 个答案: