Tested on Python 2.6 interpreter: >>> a=set('abcde') >>> a set(['a', 'c', 'b', 'e', 'd']) >>> l=['f','g'] >>> l ['f', 'g'] >>> a.add(l) Traceback (most recent call last): File "<pyshell#35>",...
... soup = BeautifulSoup(html, "lxml") File "/Library/Python/2.7/site-packages/bs4/__init__.py", line 152, in __init__ % ",".join(features)) bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to...
This question already has answers here: How can I remove a key from a Python dictionary? (16 answers) Closed 7 years ago. Is there any other way to delete...
I have installed OpenCV on the Occidentalis operating system (a variant of Raspbian) on a Raspberry Pi, using jayrambhia’s script found here. It installed version 2.4.5. When I try...
I am working with configuring Django project with Nginx and Gunicorn. While I am accessing my port gunicorn mysite.wsgi:application --bind=127.0.0.1:8001 in Nginx server, I am getting the following error...
I am getting the following error: Exception in thread Thread-3: Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 810, in __bootstrap_inner self.run() File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 763, in run self.__target(*self.__args,...
I’m trying to use TDD (test-driven development) with pytest. pytest will not print to the console when I use print. I am using pytest my_tests.py to run it. The...
I am trying to install PIL (the Python Imaging Library) using the command: sudo pip install pil but I get the following message: Downloading/unpacking PIL You are installing a...
Suppose I have a dataframe with columns a, b and c, I want to sort the dataframe by column b in ascending order, and by column c in descending...
I’ve been making Python scripts for simple tasks at work and never really bothered packaging them for others to use. Now I have been assigned to make a Python...