小编Avi*_*Raj的帖子

我一直在尝试使用tensorflow两天,现在在python2.7和3.4中反复安装和重新安装它.无论我做什么,我在尝试使用tensorflow.placeholder()时都会收到此错误消息

这是非常的样板代码:

tf_in = tf.placeholder("float", [None, A]) # Features

无论我做什么,我总会得到回溯:

Traceback (most recent call last):
  File "/home/willim/PycharmProjects/tensorflow/tensorflow.py", line 2, in <module>
    import tensorflow as tf
  File "/home/willim/PycharmProjects/tensorflow/tensorflow.py", line 53, in <module>
    tf_in = tf.placeholder("float", [None, A]) # Features
AttributeError: 'module' object has no attribute 'placeholder'

有谁知道如何解决这个问题？

我想创建一个订单页面,其中包含两个选项卡下订单选项卡,我的订单选项卡.所以我创建了一个Order.js文件和另一个OrderContent.js文件.

Order.js

/* @flow */
import React from 'react'

import {
  View,
  StatusBar,
} from 'react-native'

import SplashScreen from 'react-native-splash-screen'

import HomeHeader from '../Components/HomeHeader'
import OrderContent from './OrderContent'


export default class OrdersScreen extends React.Component {
  static navigationOptions = {
    drawer: () => ({
      label: 'Orders',
    }),
  }
  static propTypes = {
    navigation: React.PropTypes.object.isRequired,
  }

  componentDidMount() {
    SplashScreen.hide()
  }
  render() {
    return (
      <View style={{flex: 1, backgroundColor: '#fff'}}>
        <StatusBar
          barStyle="light-content"
          backgroundColor={'#202930'} />
        <HomeHeader
          title="Order Page"
          navigation={this.props.navigation} /> …

我在一本书中看到了一段代码,如下:

x = 10;
if(x ==10) { // start new scope
int y = 20; // known only to this block
x = y * 2;
}

代码和块都是一样的吗？

假设我正在尝试签出一组特定的git文件,例如app/*^(.tmpl).html,

如何把这个正则表达式扔进去 git checkout branch -- (regex)

我正在尝试在我的django应用中实施google oauth2身份验证.我按照文档按照所有步骤操作.

在浏览器地址栏上,如果我浏览此https://foo.bar.net/api/v1/auth/login/google-oauth2/网址,它会通过谷歌正确验证并返回google-auth-token到提到的redirect-url,然后获取auth-token并将其转换为普通令牌,然后发送以json格式提供给用户或前端.

但是如果我试图从我的js代码向上面提到的URL发出GET请求,它会显示出来

Reason: CORS header 'Access-Control-Allow-Origin' missing

前端的完整回溯看起来像,

GET https://foo.bar.net/api/v1/auth/login/google-oauth2/ 302 Found 718ms    
polyfil...ndle.js (line 7507)
GET https://accounts.google.com/o/oauth2/auth?client_...DW&response_type=code&scope=openid+email+profile 200 OK
Login Failed Response { _body=Event error,  status=0,  ok=false,  more...}
main.bundle.js (line 367)
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://accounts.google.com/o/oauth2/auth?client_id=kguygvh868697-khgkhvkgvkgkgv.apps.googleusercontent.com&redirect_uri=https://foo.bar.net/api/v1/auth/complete/google-oauth2/&state=Cbms1QhSQVzjO3xkjhkyuu&response_type=code&scope=openid+email+profile. (Reason: CORS header 'Access-Control-Allow-Origin' missing).

我搜索了谷歌,它提示我安装djang-CORS-headers.我已经安装并配置了上面的包.但是出现了同样的错误.

我的一部分settings.py看起来像,

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'oauth2_provider.middleware.OAuth2TokenMiddleware',
]

INSTALLED_APPS = [
    'django.contrib.admin', …

我正在尝试将数据字节列表写入CSV文件.由于它是一个字节字符串列表,我使用下面的代码:

with open(r"E:\Avinash\Python\extracting-drug-data\out.csv", "wb") as w:
    writer = csv.writer(w)
    writer.writerows(bytes(datas, 'UTF-8'))

但它会导致以下错误:

TypeError:没有字符串参数的编码或错误

datas 是字节字符串列表.

print(datas)

产量

[b'DB08873', b' MOLSDFPDBSMILESInChIView Structure \xc3\x97Structure for DB08873 (Boceprevir) Close', b'394730-60-0', b'LHHCSNFAOIFYRV-DOVBMPENSA-N', b'Organic acids and derivatives  ', b'Food increases exposure of boceprevir by up to 65% relative to fasting state. However, type of food and time of meal does not affect bioavailability of boceprevir and thus can be taken without regards to food.  \r\nTmax = 2 hours;\r\nTime to steady state, three times a day …

我想要运行下面出现错误的测试用例.

运行commond:python manage.py test

如果您想尝试删除测试数据库'test_project_management_db',请输入'yes',或者取消'no'取消:是为别名'default'销毁旧测试数据库...

Traceback (most recent call last):
  File "manage.py", line 24, in <module>
    execute_from_command_line(sys.argv)
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
    utility.execute()
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 355, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 29, in run_from_argv
    super(Command, self).run_from_argv(argv)
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/core/management/commands/test.py", line 62, in handle
    failures = test_runner.run_tests(test_labels)
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/test/runner.py", line 601, in run_tests
    old_config = self.setup_databases()
  File "/home/rails/Desktop/projects/envs/project_manage_env/local/lib/python2.7/site-packages/django/test/runner.py", line 546, …

我想对第3列中所有行的值求和.我该怎么做？

输入:

chr19   10 11
chr19   12 15
chr19   11 29
chr19   a0 20

预期产量:

75

目前我正在开发一款运行在Google应用引擎顶部的django应用.模型领域之一看起来像,

picture = models.ImageField()

但它在保存特定模型时显示以下错误

  File "/django_projects/cityguide-backend/src/lib/django/db/models/fields/files.py", line 93, in save
    self.name = self.storage.save(name, content, max_length=self.field.max_length)
  File "/django_projects/cityguide-backend/src/lib/django/core/files/storage.py", line 63, in save
    name = self._save(name, content)
  File "/django_projects/cityguide-backend/src/lib/django/core/files/storage.py", line 248, in _save
    fd = os.open(full_path, flags, 0o666)
  File "/google_appengine/google/appengine/tools/devappserver2/python/stubs.py", line 73, in fake_open
    raise OSError(errno.EROFS, 'Read-only file system', filename)
OSError: [Errno 30] Read-only file system: u'/django_projects/backend/src/Screenshot_from_2014-04-18_190527.png'

经过一些研究后我发现,GAE不支持对文件系统进行写操作.我想我需要使用GAE blobstore或Google Cloud存储.但我不知道如何将这些与django的模型整合在一起.

我尝试测试时出现以下错误 LoginComponent

PhantomJS 2.1.1 (Linux 0.0.0): Executed 3 of 55 (1 FAILED) (0 secs / 0.307 secs)
PhantomJS 2.1.1 (Linux 0.0.0) LoginComponent should create FAILED
Failed: Uncaught (in promise): Error: Template parse errors:
There is no directive with "exportAs" set to "ngForm" ("iv class="col-md-4 col-sm-6 col-md-offset-4 col-sm-offset-3">
          <form (ngSubmit)="login(f)" [ERROR ->]#f="ngForm">
            <div class="card card-login">
              <div class="card-header text-cen"): LoginComponent@5:38

我的组件的一部分看起来像,

login.component.ts

export class LoginComponent {

  isBusy: boolean = false;
  user: User;

  constructor(
    private router: Router,
    private notificationService: NotificationService,
    private authService: AuthenticationService, …