How are tuples unpacked in for loops?
I stumbled across the following code:
python
Getting “Permission Denied” when running pip as root on my Mac
I’ve started to use my Mac to install Python packages in the same way I do with my Windows PC at work; however on my Mac I’ve come across frequent permission denied errors while writing to log files or site-packages.
Binary search (bisection) in Python
Is there a library function that performs binary search on a list/tuple and return the position of the item if found and ‘False’ (-1, None, etc.) if not?
Does Python make a copy of objects on assignment?
I would expect that the following code would just initialise the dict_a, dict_b and dict_c dictionaries. But it seams to have a copy through effect:
Python extract pattern matches
I am trying to use a regular expression to extract words inside of a pattern.
Circular import dependency in Python
Let’s say I have the following directory structure:
selenium with scrapy for dynamic page
I’m trying to scrape product information from a webpage, using scrapy. My to-be-scraped webpage looks like this:
multiprocessing.Pool: When to use apply, apply_async or map?
I have not seen clear examples with use-cases for Pool.apply, Pool.apply_async and Pool.map. I am mainly using Pool.map; what are the advantages of others?
How can I open multiple files using “with open” in Python?
I want to change a couple of files at one time, iff I can write to all of them. I’m wondering if I somehow can combine the multiple open calls with the with statement:
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONPATH?
How can I make any use of PYTHONPATH? When I try to run a script in the path the file is not
found. When I cd to the directory holding the script the script runs. So what good is the
PYTHONPATH?