8 авг. 2018 г. · A better way is to use enumerate() which will return a tuple (id, elt). Thus using enumerate, you get both the id and the element at each iteration.

30 апр. 2012 г. · I need to iterate through all .asm files inside a given directory and do some actions on them. How can this be done in a efficient way?

6 июл. 2020 г. · I have a list of lists with several items. I want to create a new list(with more elements, based on a criteria) but keeping length of the original list of ...

15 июл. 2011 г. · The most general solution to this problem is to use isinstance with the abstract base class collections.Iterable .

4 июл. 2017 г. · I'm trying to sort through a list of lists. How could I go about printing or iterating over the first and last elements in each list?

7 янв. 2014 г. · Try: for word in words: if word[0] == word[-1]: c += 1 print c for word in words returns the items of words, not the index.

8 мар. 2016 г. · The shortest way (1 line only) in Python to extract data from the list of dictionaries is using lambda form and map together.

1 мая 2014 г. · I need to iterate over a circular list, possibly many times, each time starting with the last visited item. The use case is a connection pool.

13 июл. 2012 г. · It is very common for me to loop through a python list to get both the contents and their indexes. What I usually do is the following:

21 мая 2020 г. · In order to iterate a range in reverse, reversed(range(len(myList)) can be used. This will automatically calculate a new range with the proper bounds.