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Tag: python

Replacing characters in Scrapy item

I’m trying to scrape from a commerce website using Scrapy. For the price tag, I want to remove the “$”, but my current code does not work. What is the appropriate method to remove characters when using Scrapy? Answer extract() would return you a list, you can use extract_first() to get a sin…

installing cPickle with python 3.5

This might be silly but I am unable to install cPickle with python 3.5 docker image Dockerfile requirements.txt When I try to build the image Answer cPickle comes with the standard library… in python 2.x. You are on python 3.x, so if you want cPickle, you can do this: However, in 3.x, it’s easier just t…

Better place to put common functions?

I’m working on building a custom package for functions I commonly use, and it has several functions that do not fit in any specific module and are used by several modules. I’ve been putting them in __init__.py, and it works, but I’ve seen many tutorials that recommend a very small __init__.p…

Python2: Should I use Pickle or cPickle?

Python 2 has both the pickle and cPickle modules for serialization. cPickle has an obvious advantage over pickle: speed. What, if any, advantage does pickle have over cPickle? Answer The pickle module implements an algorithm for turning an arbitrary Python object into a series of bytes. This process is also c…

how to parse json array in django

I am new in django rest api framework and using get i am fetching the a json array whose api is this https://api.coursera.org/api/courses.v1?q=search&query=machine+learning and i am not able to parse it.Actually i want to store all the names and send them to .html file .I have used this code but didnot wo…