python Questions

How to wait for task completes with celery chain? – Shopify

February 3, 2020
Benny Chan
2 Answers

I am trying to create a celery chain here: chain(getAllProducts.s(shopname, hdrs), editOgTags.s(title, description, whichImage, readableShopname, currentThemeId), notifyBulkEditFinish.si(email, name, readableShopname, totalProducts), updateBulkEditTask.si(taskID))() In editOgTags, there are 3 subtasks: @shared_task(ignore_result=True) def editOgTags(products, title, description, whichImage, readableShopname, currentThemeId): for product in products: editOgTitle.delay(product,…

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Record voice with recorder.js and upload it to python-flask server, but WAV file is broken – Debian

February 3, 2020
Kazuaki Suzuki
2 Answers

I would like to realize this. A user speaks to a web browser. A web browser (Google Chrome) record user's voice as WAV file(Recorder.js) and send it to a python-flask server. I realized this with the help of addpipe's simple…

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Creating a modulo/folded plot in Python – Photoshop

January 31, 2020
Gleb
2 Answers

I am trying to "fold" an exponential plot (and a fit to it - see the first image below) around a discrete interval on the x-axis (a.k.a a "modulo plot"). The aim is that after 10 x-units the exponential is…

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This code for Telegram bot suposse to work because I copyed it, but does not – Telegram API

January 30, 2020
Aqamarine
2 Answers

I started learning making bots in Telegram with Python 3. I was learning it by this course https://groosha.gitbook.io/telegram-bot-lessons/. In a lesson 2 there was a code import telebot bot = telebot.TeleBot(config.token) @bot.message_handler(commands=['test']) def find_file_ids(message): for file in os.listdir('music/'): if file.split('.')[-1]…

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OOM when reading data to Pandas from MongoDB using pymongo client – CentOS

January 30, 2020
MPA
6 Answers

I have (900k, 300) records on mongo collection. When i am trying to read the data to pandas the memory consumption increase dramatically till the process is Killed. I have to mention that the data is fit to memory(1.5GB~) if…

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Redis – Docker [Errno 111] Connect call failed ('127.0.0.1', 6379)

January 29, 2020
Lucy Gu
9 Answers

I am trying to follow the tutorial here https://channels.readthedocs.io/en/latest/tutorial/part_2.html and check if channel layer can communicate with Redis. The only different thing I'm doing is that I'm using docker-compose and running the entire thing on a docker container, and that…

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Could not find a version that satisfies the requirement opencv-python – CentOS

January 29, 2020
Prateek Garg
2 Answers

I tried to install python-opencv using pip, but the terminal throws an error every time: Command Issued: pip install opencv-python Traceback: ERROR: Could not find a version that satisfies the requirement opencv-python (from versions: none) ERROR: No matching distribution found…

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Python 2.7 and 3.8.0 compatible django-redis serializer

January 28, 2020
i_am_deesh
2 Answers

I Have two server running one is running on python2.7 and another on python3.8. for both the servers we have the common Django-cache server. python2.7 server is setting up cache in the Django-cache and python3.8 trying to read this throwing…

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ModuleNotFoundError: No module named 'PyDIP', although it's installed – Debian

January 28, 2020
Rodrigo
2 Answers

Trying to work with image recognition, I installed Python with OpenCV, following this tutorial. Later on, I decided to give PyDIP a try, running the commands given on this answer. The first command just don't work: >>> import PyDIP as…

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Is there an effective way to install 'pip', 'modules' and 'dependencies' in an offline environment? – CentOS

January 28, 2020
Cassil
2 Answers

The computer on which I want to install pip and modules is a secure offline environment. Only Python 2.7 is installed on this computers(centos and ubuntu). To run the source code I coded, I need another module. But neither pip…

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