Validate SSL certificates with Python

I need to write a script that connects to a bunch of sites on our corporate intranet over HTTPS and verifies that their SSL certificates are valid; that they are not expired, that they are issued...

Using Heapy's Memory Profile Browser with Twisted.web

I am trying to profile twisted python code with Heapy. For example (pseudo code): from twisted.web import resource, server from twisted.internet import reactor from guppy import hpy class...

Monitor the state of an object in pdb

I am using python 2.4 and trying to debug a twisted application. Is there any way by which I can perhaps put a watch on an object and break execution when its value changes. For Example To start...

Other language (frameworks) where the event loop is exposed as a language construct?

At http://nodejs.org/#about it says the following: "Node is similar in design to and influenced by systems like Ruby's Event Machine or Python's Twisted. Node takes the event model a...

Force python to use an older version of module (than what I have installed now)

My employer has a dedicated module1 we use for internal unit / system test; however, the author of this module no longer works here and I have been asked to test some devices with it. The problem...

Identifying the dependency relationship for python packages installed with pip

When I do a pip freeze I see large number of Python packages that I didn't explicitly install, e.g. $ pip...

From virtualenv, pip freeze > requirements.txt give TONES of garbage! How to trim it out?

I'm following this tutorial: http://devcenter.heroku.com/articles/django At some point I'm suposed to do: pip freeze > requirements.txt (Ofc. from virtualenv created instance of python) And I...

Django AttributeError: 'str' object has no attribute '_default_manager'

The following error seems to occur randomly on my live server (i.e. through apache mod_wsgi) but never in development (i.e. localhost python manage.py runserver). Note this happens infrequently...

Adding Consecutive integers in Python, with a twist

Here is my original code: x = input("Please input an integer: ") x = int(x) i = 1 sum = 0 while x >= i: sum = sum + i i += 1 print(sum) Here is what the second part is: b) Modify your...

Python packages not installing in virtualenv using pip

I'm having trouble installing twisted pip --version pip 1.1 from /home/chris/GL/GLBackend/glenv/lib/python2.7/site-packages/pip-1.1-py2.7.egg (python 2.7) Create a virtual...

how to emit signal from a non PyQt class?

i'm programming an application in python using twisted and PyQt . the problem that i'm facing is that when a function in my twisted code is executed i have to print a line in the GUI, i'm trying...

Twisted Python pause/postpone reactor

I'm pretty new to twisted, I have an HTTP client that queries a server that has rate limit, when I hit this limit the server responds with HTTP 204, so when I'm handling the response I'm doing...

How to install cffi package on AWS Beanstalk

This question looks the same as this post, but since there was no answer, I am re-asking here. I have a Django project to be deployed on AWS Beanstalk, which is using a package cffi. When I run eb...

How to upload crawled data from Scrapy to Amazon S3 as csv or json?

What are the steps to upload the crawled data from Scrapy to the Amazon s3 as a csv/jsonl/json file? All i could find from the internet was to upload scraped images to the s3 bucket. I'm currently...

Scrapy + Splash: connection refused

I'm learning how to work with scrapy + splash. I've created a project inside with a virtual environment and I'm now doing this tutorial: https://github.com/scrapy-plugins/scrapy-splash. I've ran...

TypeError: Object of type 'bytes' is not JSON serializable

I just started programming Python. I want to use scrapy to create a bot,and it showed TypeError: Object of type 'bytes' is not JSON serializable when I run the project. import json import...

Python - InvocationError in tox running py.test and coverage test

My project has the following structure: my_project | setup.py tox.ini src | core_functions.py client.py server.py sql_database.py tests.py The tests.py file contains the...

Websocket handshake status 200 exception

This is my client: from websocket import create_connection ws = create_connection("wss://127.0.0.1:8080", sslopt={"cert_reqs": ssl.CERT_NONE, "check_hostname": False,...

PyInstaller stuck on "Building PKG ..." when exporting a single .exe

I wrote a kivy program which I want to export into a single .exe file through pyinstaller. I managed to export to multiple files (standard option) but when I add the --onefile option to...

Installing Twisted for Python using pip: error: Microsoft Visual Studio failed with exit status 2

When I try to install the python package Twisted on my windows 10 machine running python3.7, I'm unable to build a Wheel from the .tarz file and I eventually get the following output: C:\Program...

Handshake Failure: SSL Alert number 40

I'm trying to crawl a page without success: >> scrapy shell "XXXXXX" ... 2018-12-28 17:23:32 [scrapy.downloadermiddlewares.retry] DEBUG: Retrying <GET XXXXXXXX> (failed 1 times):...

Openvpn don't see changes in Mysql database

On OpenVPN, I installed the script "post_auth_mac_address_checking.py" to check clients's MAC addresses during vpn...

python, mongo and marshmallow: datetime struggles

I'm trying to do something pretty simple: get the current time, validate my object with marshmallow, store it in mongo python...

Error "Running as root without --no-sandbox is not supported"

I try to implement scrapy-puppeteer library for my project (https://pypi.org/project/scrapy-puppeteer/) I implement PuppeteerMiddleware according to documentation from library Here is code which I...

Writing code to check if a password meets certain criteria

I am trying to write a function in Python that checks a password and returns True or False based on the following criteria: it must be at least 8 characters long it must contain at least one...

ERROR: Twisted-20.3.0-cp39-cp39-win_amd64.whl is not a supported wheel on this platform

I was installing django channels and I got an error that twisted was not installed. I tried installing it after downloading the package from here...

How to use yolov5 model in django

I want to use the yolov5 model in django, but I got trouble. What I want to make is if user upload an image to django server, object detection made by with the yolov5 model, and then the result...

Scrapy python - I keep getting Crawled 0 pages

I have tried to follow multiple tutorials but no matter what I try I'm always getting the same result "Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)" my code is very...

elasticsearch: cluster_block_exception TOO_MANY_REQUESTS/12/index read-only / allow delete (api)

I'm running spiders with multiprocess indexing, and I want to resolve this. I'm always getting TOO_MANY_REQUESTS, is there a configuration I can change to allow for the threshold to be bigger for...

Numpy vs Eigen vs Xtensor Linear Algebra Benchmark Oddity

I recently was trying to compare different python and C++ matrix libraries against each other for their linear algebra performance in order to see which one(s) to use in an upcoming project. ...