抱歉我的英语不好，我工作了几天而且我被阻止了，我清理了我的开发/调试数据库，之后我的代码就再也没用了。< / p>
我正在努力了解原因以及如何解决，但没有任何线索。要求任何方法去解决这种情况并帮助我。
我知道我做错了什么，因为只做了：
./manage.py --fork contractos zero
clean all migrations data on contractos/migrations (except init.py)
./manage.py --fake
./manage.py makemigrations
./manage.py migrate
./manage.py runserver
<code>
my list.py
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from django.http import Http404
from django.shortcuts import render
# Create your views here.
from contractos.models import Contracto
def list(request):
if not request.user.is_staff and not request.user.is_superuser:
raise Http404
contractos_list = Contracto.objects.all() #.order_by("empresa")
paginator = Paginator(contractos_list, 10) # Show 25 contacts per page
page_request_var = 'lista'
page = request.GET.get(page_request_var)
try:
contractos = paginator.page(page)
except PageNotAnInteger:
#If page is not an integer, deliver first page.
contractos = paginator.page(1)
except EmptyPage:
#If page is out of range (e.g. 9999), deliver last page of results.
contractos = paginator.page(paginator.num_pages)
context = {
"object_list" : contractos,
"title": "Lista de Contractos",
"page_request_var": page_request_var,
}
return render(request, "contractos/list.html", context)
**my list.html**
{% extends "base.html" %}
{% block content %}
<div class="col-sm-9 col-sm-offset-1">
<h1>Contractos {{ title }}</h1>
<div class="row">
{% for obj in object_list %}
<div class="col-sm-6 col-md-4">
<div class="thumbnail">
<div class="caption">
<h3>
<a href='{{ obj.get_absolute_url }}'>{{ obj.empresa }} </a><br />
{% if obj.logo %}
<img src="{{ obj.logo.url }}" class="img-responsive"/>
{% endif %}
<small>criado {{ obj.timestamp|timesince }}</small><br />
<small>alterado em {{ obj.updated|timesince }}</small><br />
</h3>
{{ obj.nfic }} <br/>
{{ obj.descricao|linebreaks|truncatechars:60 }}
<p>...</p>
<p><a href="{{ obj.get_absolute_url }}" class="btn btn-primary" role="button">Detalhes</a>
<!--a href="#" class="btn btn-default" role="button">Button</a--></p>
</div>
</div>
</div>
{% cycle "" "<div class='col-sm-12'><hr/></div></div><div class='row'>" %}
{% endfor %}
</div>
<div class="pagination">
<span class="step-links">
{% if object_list.has_previous %}
<a href="?{{ page_request_var }}=1">Primeira</a>
<a href="?{{ page_request_var }}={{ object_list.previous_page_number }}">Anterior</a>
{% endif %}
<span class="current">
{% if object_list.number %}
Pagina {{ object_list.number }} de {{ object_list.paginator.num_pages }}.
{% endif %}
</span>
{% if object_list.has_next %}
<a href="?{{ page_request_var }}={{ object_list.next_page_number }}">Seguinte</a>
<a href="?{{ page_request_var }}={{ object_list.paginator.num_pages }}">Ultima</a>
{% endif %}
</span>
</div>
</div>
{% endblock content %}
**my models.py**
from __future__ import unicode_literals
import uuid
from django.db import models
from django.core.urlresolvers import reverse
STATUS_CHOICES = [
('a', 'Activo'),
('s', 'Suspenso'),
('c', 'Cancelado'),
('t', 'Terminado'),
]
def upload_location(instance, filename):
return "contractos/%s/%s" % (instance.nfic, filename)
# Create your models here.
class Contracto(models.Model):
slug = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
nfic = models.CharField(max_length=15, default='PT000000000', unique=True)
empresa = models.CharField(max_length=128, unique=True)
descricao = models.TextField()
status = models.CharField(max_length=1, choices=STATUS_CHOICES, default='a')
logo = models.ImageField(upload_to=upload_location,
null=True,
blank=True,
width_field="width_field",
height_field="height_field"
)
height_field = models.IntegerField(default=0)
width_field = models.IntegerField(default=0)
updated = models.DateTimeField(auto_now=True, auto_now_add=False)
timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
def __str__(self):
return self.empresa
def get_absolute_url(self):
return reverse("contractos:details", kwargs={"uuid": self.slug})
class Meta:
ordering = ["empresa"]
db_table = ["Contractos"]
and the error I got when try rendering list.py are:
**Environment:**
Request Method: GET
Request URL: http://127.0.0.1:8000/contractos/
Django Version: 1.10.4
Python Version: 3.5.1
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'contractos']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in validate_number
34. number = int(number)
**During handling of the above exception (int() argument must be a string, a bytes-like object or a number, not 'NoneType'), another exception occurred:**
File "/home/gwo/Projects/paas/src/contractos/views/list.py" in list
20. contractos = paginator.page(page)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in page
50. number = self.validate_number(number)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in validate_number
36. raise PageNotAnInteger('That page number is not an integer')
**During handling of the above exception (That page number is not an integer), another exception occurred:**
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in count
72. return self.object_list.count()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/query.py" in count
369. return self.query.get_count(using=self.db)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in get_count
476. number = obj.get_aggregation(using, ['__count'])['__count']
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in get_aggregation
457. result = compiler.execute_sql(SINGLE)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in execute_sql
824. sql, params = self.as_sql()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in as_sql
369. extra_select, order_by, group_by = self.pre_sql_setup()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in pre_sql_setup
46. self.setup_query()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in setup_query
36. self.query.get_initial_alias()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in get_initial_alias
879. alias = self.join(BaseTable(self.get_meta().db_table, None))
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in join
921. alias, _ = self.table_alias(join.table_name, create=True)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in table_alias
689. alias_list = self.table_map.get(table_name)
**During handling of the above exception (unhashable type: 'list'), another exception occurred:**
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner
39. response = get_response(request)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/gwo/Projects/paas/src/contractos/views/list.py" in list
23. contractos = paginator.page(1)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in page
50. number = self.validate_number(number)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in validate_number
39. if number > self.num_pages:
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/utils/functional.py" in __get__
35. res = instance.__dict__[self.name] = self.func(instance)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in num_pages
84. if self.count == 0 and not self.allow_empty_first_page:
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/utils/functional.py" in __get__
35. res = instance.__dict__[self.name] = self.func(instance)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/core/paginator.py" in count
77. return len(self.object_list)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/query.py" in __len__
238. self._fetch_all()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/query.py" in _fetch_all
1087. self._result_cache = list(self.iterator())
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/query.py" in __iter__
54. results = compiler.execute_sql()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in execute_sql
824. sql, params = self.as_sql()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in as_sql
369. extra_select, order_by, group_by = self.pre_sql_setup()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in pre_sql_setup
46. self.setup_query()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in setup_query
36. self.query.get_initial_alias()
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in get_initial_alias
879. alias = self.join(BaseTable(self.get_meta().db_table, None))
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in join
921. alias, _ = self.table_alias(join.table_name, create=True)
File "/home/gwo/Projects/paas/lib/python3.5/site-packages/django/db/models/sql/query.py" in table_alias
689. alias_list = self.table_map.get(table_name)
**Exception Type: TypeError at /contractos/
Exception Value: unhashable type: 'list'**
</code>
</pre>
所以我只清理我的数据从数据库重新填充然后再次使用测试信息向我们的客户展示项目，你可以想象我必须取消！
答案 0 :(得分：0)
你不能拥有一个名为list的函数，因为它是一个python关键字。将其更改为其他内容，它将起作用。另外，您应该避免命名文件list等。