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Flask-SQLAlchemy select date is equal to today's data
ORM Model Tokens has a field that is the creation time, as follows:
create_time = db.Column(db.DateTime, nullable=False, default=datetime.now)
Screenshot in the database:
stackoverflowcast:
db.cast(t.create_time, db.DATE)print:
alone prin...
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How to use https? for Flask+gunicorn
deploy the Flask project using gunicorn on the remote Linux Ubuntu server, but not using Nginx for the time being. For the Baidu Cloud domain name bought by , I applied for a free SSL certificate. There are three files downloaded with the exten...
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Report an error to display 'url_args' is undefined' in the flask jinja2 template
this is my flask code:
< H1 > coding=utf-8 < H1 >
from flask import render_template, request,flash, redirect, url_for,current_app,abort from. Import main from.. import db from.. models import Post, Comment from flask_login import login_required,...
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Flask-sqlalchemy 's session problem?
according to the book, this error will be reported all the time, which probably means that this error can only be used in the same thread, right? Do you want to use creat_scoped_session? please give me some advice. Thank you!
sqlalchemy.exc.Programm...
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Separate Flask items, written in the browser's cookie, how to find the corresponding session on the server during the request process
Project structure: react frontend + flask backend problem description: when I log in, I call session [ token ] = username, and I see the cookie written in the browser s cookie (the key-value pair is session:asasjndjan). When I click to log out again...
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Polling problems after calling selenium with Flask
I am writing a web page panel of selenium crawler, using flask to control some behavior of selenium. The target web page needs to scan the QR code to log in, and now the card is at this stage after scanning the QR code, because I can t figure out how t...
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How to obtain POST application/x-www-form-urlencoded data in separate and cross-domain Flask projects
Flask framework, items are separated before and after . Cannot get data for fetch, backend post; specific symptoms:
1. getpost;
2. request.form
3. segmentfault;
4.
POST
Formdata
username: aaa
password: 1...
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How to get objects from model.User queried by Flask_SQLAlchemy
the result of the query is a model.user type, not a simple dict, so how can you use it like an object?
user = User.query.filter(User.username == username, User.password == password).first()
...
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Call webService using Python+flask
I built a website by learning that Flask Web (is the book whose cover is a dog). On the login page, I need to call the interface provided by WebService. Another developer on our side gave me an WebService interface for me to call, but I don t know how ...
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About the administrator mailbox setting in flask web development?
Why is my interface no different from that of an ordinary user when I create an administrator user? My administrator mailbox is set as follows, that is, my QQ Mail. The last two pictures are the creation interfaces for ordinary users and administrator u...
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How does flask set the value of a field in cookies to list or dict
resp = make_response () resp.set_cookie ( addr , [])-sharp reported an error ...
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Consult the simplified implementation of the same operation of multiple Model classes in Python
now there is a problem in the project. The project is completed in flask. Now there are several data tables with the same order field, and all need to query the data of these tables and adjust the value of the order field.
the inefficient way is to im...
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After flask modifies the default port
1. Py2.7,flask framework used by the development environment in pycharm, 2. During development, you create the flask project directly in pycharm code as follows: 3. The phenomenon is that the port is specified or the ip is set together with the port ...
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How to understand the parameters of blueprint in flask
:
|--hello.py
|--admin
|--__init__.py
|--admin.py
hello.py
from flask import Flask
from admin.admin import admin
app = Flask(__name__)
app.register_blueprint(admin, url_prefix= admin )
admin.py
from flask import Blueprint
admin =...
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Nginx 301 jumps to the link with,
visit https: www.oyohyee.com admin] will be redirected to [ http: www.oyohyee.com,www.oy.] use curl-IL https: www.oyohyee.com admin to get the following information
HTTP 1.1 301 MOVED PERMANENTLY
Server: nginx 1.12.2
Date: Thu, 12 Apr 2018 00:45:2...
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The time problem of django
define in models.py
jiezhi_date = models.DateTimeField (blank = True, null = True, db_index = True, verbose_name = _ (u information cutoff ))
in the template:
< div style= "color:-sharpA8B1BA; " class= "text " > deadline: {{form.jiezhi_date}}...
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I want to write a crawler using flask and start it by clicking the button at the front.
I want to use flask to write a crawler, start it by clicking the button at the front, and then save the crawled content in the database, and the front end to display the data. is mainly about how to call the crawler. Give me an idea. Thank you ....
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The question of the separation of the front and rear ends
recently, I was learning the flask framework. When I came into contact with the concept of "separation of front and rear ends ", I was very curious. I checked on the Internet and said that the front and rear ends exchange data through JSON. My personal ...
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Heroku failed to deploy flask
according to the code of Dog Book, the program push to heroku master, was successfully run as a result of heroku run python flasky.py deploy failure error report is as follows: File " app .heroku python lib python3.6 site-packages alembic script bas...
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How to encapsulate complex query objects into json data in flask?
the results queried with sqlalchemy contain other entity class objects and are stored in the sqlalchemy-related container. How to convert to json? ...
