Flask

问题 I'm sending an image using flask to react native, I get "200 OK" if I used postman and I also see the image, but when I'm using react native to get the image and display it on the screen I get the "error Unexpected token � in JSON at position 0." here's the code: fetch("http://10.0.2.2:5000/api/echo", { method: "POST", headers: { Accept: "application/json", "Content-Type": "application/json" }, body: JSON.stringify({ x: 0, y: 0 }) }) .then(response => response.text()) .then(responseJson => {

问题 I have two python code, the first one is a flask python code (main.py) which collects image from the user and stored it in my local directory, and the second one is tesseract-ocr (ocrDetection.py) python code where the image are getting started to detect text in it. Now I desired to integrate these two codes, by importing ocr code in flask [ import ocrDetection in main.py ] import os #import magic import urllib.request from app import app from flask import Flask, flash, request, redirect,

问题 With Flask 1.1.2, marshmallow 3.6.1 and webargs 6.1.0 all of my arguments are always missing . Schema: class ExportSearchSchema(Schema): limit = fields.Integer(required=False, allow_none=False, default=10, missing=10) offset = fields.Integer(required=False, allow_none=False, default=0, missing=0) status = fields.Str(required=False) class Meta: unknown = RAISE @validates('status') def validate_status(self, value): if value and value not in ['complete', 'pending', 'failed']: raise

问题 I am embedding a WebGL game built in Unity on my web app built in Flask. I use a CSP for security purposes on the backend but even after including the wasm-eval directive in my CSP, I continue to get these errors only in Chrome: UnityLoader.js:4 failed to asynchronously prepare wasm: CompileError: WebAssembly.instantiate(): Wasm code generation disallowed by embedder printErr @ UnityLoader.js:4 UnityLoader.js:4 CompileError: WebAssembly.instantiate(): Wasm code generation disallowed by

问题 I'm using python.On my page when an anonymous user goes to the sign in page, I want to pass a variable to the backend so it indicates where the user is coming from ( send the URL). So when the user clicks on this anchor link: <a href="{{ url_for('account.signin') }}">Sign in</a> I want to send current URL of the page where the user is currently. <script> var current_url = window.location.href; <script> I thought to send it like this: <a href="{{ url_for('account.signin', current_url="window

问题 I'm using python.On my page when an anonymous user goes to the sign in page, I want to pass a variable to the backend so it indicates where the user is coming from ( send the URL). So when the user clicks on this anchor link: <a href="{{ url_for('account.signin') }}">Sign in</a> I want to send current URL of the page where the user is currently. <script> var current_url = window.location.href; <script> I thought to send it like this: <a href="{{ url_for('account.signin', current_url="window

问题 I have two user models for flask_login.: class Admin(db.Model, UserMixin): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(30)) password_hash = db.Column(db.String(200)) class Merchant(db.Model, UserMixin): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(30)) password_hash = db.Column(db.String(200)) Now I want to load user in session: @login_manager.user_loader def load_user(user_id): pass I want to know how to load user from two models. 回答1:

问题 I have two user models for flask_login.: class Admin(db.Model, UserMixin): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(30)) password_hash = db.Column(db.String(200)) class Merchant(db.Model, UserMixin): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(30)) password_hash = db.Column(db.String(200)) Now I want to load user in session: @login_manager.user_loader def load_user(user_id): pass I want to know how to load user from two models. 回答1:

问题 #!/usr/bin/env python3 import jpype import jpype.imports jpype.addClassPath(sys.argv[1]) jpype.startJVM(convertStrings=False) import org.apache.pdfbox.tools as tools tools.ExtractText.main(['-startPage', '1', sys.argv[2], sys.argv[3]]) I use the following python code to call pdfbox. $ ./main.py pdfbox-app-2.0.20.jar in.pdf output.txt But it would be slow to load jar file each time when I want to convert a pdf file. Could anybody providing the flask code to make a RESTful service so that

问题 I have static html documentation built using sphinx in: $AIRFLOW_HOME/plugins/docs/ I want to create a new menu link "My Documentation" in the Airflow UI so this works: class DocsView(BaseView): @expose("/") def my_docs(self): return send_from_directory(os.path.abspath("plugins/docs/build/html"), 'index.html') docs_view = DocsView( category="My Documentation", name="Plugins", endpoint="my_docs" ) And in my custom plugin class: class MyPlugin(AirflowPlugin): admin_views = [docs_view] The link