How can I get the name of an object?
Is there any way to get the name of an object in Python? For instance:
python
Round to 5 (or other number) in Python
Is there a built-in function that can round like the following?
In Python, when to use a Dictionary, List or Set?
When should I use a dictionary, list or set?
How to plot and annotate a grouped bar chart
I came across a tricky issue about the matplotlib in Python. I want to create a grouped bar chart with several codes, but the chart goes wrong. Could you please offer me some advice? The code is as follows.
How do I copy an entire directory of files into an existing directory using Python?
Run the following code from a directory that contains a directory named bar (containing one or more files) and a directory named baz (also containing one or more files). Make sure there is not a directory named foo.
How to find all positions of the maximum value in a list?
I have a list:
How are glob.glob()’s return values ordered?
I have written the following Python code:
List vs generator comprehension speed with join function
So I got these examples from the official documentation. https://docs.python.org/2/library/timeit.html What exactly makes the first example (generator expression) slower than the second (list comprehension)? >>> timeit.timeit('"-".join(str(n) for n in range(100))', number=10000) 0.8187260627746582 >>> timeit.timeit('"-".join([str(n) for n in range(100)])', number=10000) 0.7288308143615723 Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the … Read more
How to extract all the emojis from text?
Consider the following list:
How can I find all the subsets of a set, with exactly n elements?
I am writing a program in Python, and I realized that a problem I need to solve requires me, given a set S with n elements (|S|=n), to test a function on all possible subsets of a certain order m (i.e. with m number of elements). To use the answer to produce a partial solution, and then try again with the next order m=m+1, until m=n.