小编Vas*_*le 的帖子

我正在尝试散景数据表.是否可以将HoverTool添加到散景表中的每个字段？

DataTable的一个例子 -

以及HoverTool如何工作的例子 -

我对我的电报机器人进退两难。假设我必须创建一个函数来询问连接到机器人的每个用户，每周/每月一次，一个问题：

def check_the_week(bot, update):
reply_keyboard = [['YES', 'NO']]
bot.send_message(
    chat_id=update.message.chat_id,
    text=report,

    reply_markup=ReplyKeyboardMarkup(reply_keyboard, one_time_keyboard=True))  # sends the total nr of hours
update.reply_text("Did you report all you working hour on freshdesk for this week?",
                  ReplyKeyboardMarkup(reply_keyboard, one_time_keyboard=True))

if update.message.text == "YES":
    update.message.reply_text(text="Are you sure?",
                              reply_markup=ReplyKeyboardMarkup(reply_keyboard, one_time_keyboard=True))

    # Asks confirmation
    if update.message.text == "YES":
        update.message.reply_text(text="Thank you for reporting your working hours in time!")

    elif update.message.text == "NO":
        update.message.reply_text(text="Please, check you time reports and add missing")

elif update.message.text == "NO":
    update.message.reply_text(text="Please, check you time reports …

尝试为我的应用创建一个注册页面。我正在使用来自pythonanywhere.com 的Flask 框架和 MySQL 数据库。

@app.route('/register/', methods=["GET","POST"]) 
def register_page():
try:
    form = RegistrationForm(request.form)



    if request.method == "POST" and form.validate():
        email = form.email.data
        password = sha256_crypt.encrypt((str(form.password.data)))
        c, conn = connection()

        x = c.execute("SELECT * FROM users WHERE email = (%s)",
                      (email))

        if int(x) > 0:
            flash("That email adress is already in use.")
            return render_template('register.html', form=form)

        else:
            c.execute("INSERT INTO users (email, password) VALUES (%s, %s)",
                      (thwart(email),thwart(password)))

            conn.commit()
            flash("Thanks for registering!")
            c.close()
            conn.close()
            gc.collect()

            session['logged_in'] = True
            session['email'] = email

            return …

再次尝试实现 django-registration。当我尝试将它部署到 heroku 并注册一个新用户时，它给了我一个奇怪的错误：

Traceback:

#some irrelevant traceback

File "/app/.heroku/python/lib/python2.7/site-packages/registration/views.py" in post
  43.             return self.form_valid(request, form)

File "/app/.heroku/python/lib/python2.7/site-packages/registration/views.py" in form_valid
  91.         new_user = self.register(request, form)

File "/app/.heroku/python/lib/python2.7/site-packages/registration/backends/default/views.py" in register
  86.         site = get_current_site(request)

File "/app/.heroku/python/lib/python2.7/site-packages/django/contrib/sites/shortcuts.py" in get_current_site
  15.         return Site.objects.get_current(request)

File "/app/.heroku/python/lib/python2.7/site-packages/django/contrib/sites/models.py" in get_current
  67.             return self._get_site_by_request(request)

File "/app/.heroku/python/lib/python2.7/site-packages/django/contrib/sites/models.py" in _get_site_by_request
  44.                 SITE_CACHE[host] = self.get(domain__iexact=host)

File "/app/.heroku/python/lib/python2.7/site-packages/django/db/models/manager.py" in manager_method
  122.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/app/.heroku/python/lib/python2.7/site-packages/django/db/models/query.py" in get
  387.                 self.model._meta.object_name

Exception Type: DoesNotExist at /accounts/register/
Exception Value: Site matching query …

最近我使用Flask和sympy库开发了一个Web应用程序.用户在textarea中输入他的等式,Flask将其作为字符串取代.我想通过使用sympy函数solve()来计算这个等式的结果.但为此我必须将此字符串转换为sympy表达式.我怎么能这样做？

`

from flask import Flask,request,render_template,flash
from sympy import *
from sympy.parsing.sympy_parser import *

x = symbols('x')
app = Flask(__name__)
app.secret_key = 'mysecretkey'


def calculate_():
    first_eq = request.form['first_eq']

    first_eq2= parse_expr(first_eq)
    result = solve(first_eq2)
    return result


@app.route("/",methods=['GET', 'POST'])
def myGet():

    return render_template("my-form.html")

@app.route("/myPost/",methods=['GET', 'POST'])
def myPost():
    answer = request.form['answer']
    result_of_answer=solve(Eq(answer),x)
    result = calculate_()
    try:
        if result == result_of_answer:
            flash("you got it!")
        else:
            flash("no, it's wrong")
            return render_template("my-form.html")
    except:
        flash("sorry, wrong type. Try again!")
        return render_template("my-form.html")
if __name__ == '__main__':
    app.run()`

我正在尝试使用 django Rest-auth库来实现注册。我遵循了安装和使用指南中的每一条说明，包括带有自定义用户序列化程序的部分。问题就从这里开始了。我们注册一个新用户，确认电子邮件，当我尝试更新用户时，我收到相同的错误：

“RelatedObjectDoesNotExist at /rest-auth/user/ 用户没有用户配置文件。”

我不知道如何进行注册以同时为他创建用户和个人资料。我知道这个问题以前已经被问过，但我没有找到任何可以解释为什么会发生这种情况的内容。我正在寻找使用 django-rest-auth 和自定义用户模型进行注册的简单工作示例

模型.py：

class UserProfile(models.Model): 
     user = models.OneToOneField(User, primary_key=True, related_name='profile')
     tagline = models.CharField(max_length=140, null=True)
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)

     @receiver(post_save, sender=User)
     def create_profile_for_user(sender, instance=None, created=False, **kwargs):
        if created:
            UserProfile.objects.get_or_create(user=instance)

     @receiver(pre_delete, sender=User)
     def delete_profile_for_user(sender, instance=None, **kwargs):
        if instance:
           user_profile = UserProfile.objects.get(user=instance)
           user_profile.delete()

序列化器.py

class UserSerializer(UserDetailsSerializer):
    curriculumVitaeLink = serializers.CharField(source="userprofile.curriculumVitaeLink", required=False)
    class Meta(UserDetailsSerializer.Meta):
        fields = UserDetailsSerializer.Meta.fields + (
            'curriculumVitaeLink'
        )

    def update(self, instance, validated_data):
        profile_data = validated_data.pop('userprofile', {})
        curriculumVitaeLink = profile_data.get('curriculumVitaeLink') …