I am using the following function pairwise to get the iteration of ordered pairs. For example, if the iterable is a list [1, 2, 3, 4, 5, 6] then I want to get (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 1). If I use the following function then it returns (1, 2), (2, 3), (3, 4),
Tag: iterator
Speed comparision for iterating over List and Generator in Python
When comparing usage of Python Generators vs List for better performance/ optimisation, i read that Generators are faster to create than list but iterating over list is faster than generator. But I coded an example to test it with small and big sample of data and it contradicts with one another. When I test speed for iterating over generator and
How can I find all common sub strings using Rust , Python, javascript?
Problem Background Git is an awesome version control system, I want learn git by writing my own version control system. The first step I have to do is implement a string diff tool. I’ve read this blog and this paper. In order to get the diff of two strings, I need to locate the common part. Hence, I came into
Iterables / generators with specified length
Iterable objects are those that implement __iter__ function, which returns an iterator object, i.e. and object providing the functions __iter__ and __next__ and behaving correctly. Usually the size of the iterable object is not known beforehand, and iterable object is not expected to know how long the iteration will last; however, there are some cases in which knowing the length
How to iterate over azure.core.paging.ItemPaged?
I have an iterator object <iterator object azure.core.paging.ItemPaged at 0x7fdb309c02b0>. When I iterate over it for a first time (see code below), it prints the results. However, when I execute this code a second time, it prints nothing. What is wrong in my code? Do I need to somehow reset the enumerator? Answer This is the default behavior of the
How to skim itertools permutations?
Initial code: Result: Now I want to remove everything starting with “)” or “#” and ends whit “(” or “#” and contenin “(“,”#”,”)” With Now the list is half in size “9k chart from 20k”. ps: Now, how do i remove (‘A’, ‘B’, ‘C’, ‘(‘, ‘)’, ‘#’) this I need to do this operations while the “iterator iterates” so I
The iteration loop is not working properly for API
There is an API that only produces one hundred results per page. I am trying to make a while loop so that it goes through all pages and takes results from all pages, but it does not work properly. This script goes through the pages: At startup: He sees five pages. When I look at the variable after execution: He
itertools’ islice(count()) vs range()
Real quick one: I just saw a tutorial where they show we can use itertools’ islice() and count() together like so: Is there any advantage in doing this instead of using range() ? Answer Is there any advantage in doing this instead of using range() ? In this example there is no advantage and range would be the canonical solution.
Generator function for file reading returning object type as regular function
I am trying to create a generator function to return the content of a .csv file row by row and while the generator function does seem to be iterable with me being able to loop over it with a for loop, when I print the object type of the generator function, instead of returning class ‘generator’, it returns class ‘function’.
Iterable over raw text documents expected, string object received
I am currently trying to build a naive Bayes classifier as mentioned in this link. Referring to the line under the Training the Classifier subheading, I had a similar line, X_new_counts = count_vect.transform(input.plot_movie) in my code which should take an iterable as an input to the transform function. The input is a record from a DataFrame and is of type