If you’ve ever written any Python at all, the chances are you’ve used iterators without even realising it. Writing your own and using them in your programs can provide significant perfo… ...

#2 create two lists to store all even and odd numbers from 1 to 20 individually even = [] # create a list for even numbers odd = [] # create a list for odd numbers for k in range(1, 21): if k%2 == 0: ...

Create a for loop where the range is the number of rows. Find the relationship between the number of stars on a row and the row index. Create an inner loop that prints stars based on this relationship ...

To comment out a line in Python, we use the # symbol. Start any line with that symbol and it will be treated as a comment.

In the early days of C, you’d occasionally see someone — probably a former Pascal programmer — write something like this: #define BEGIN { #define END } This would usually initiate… ...

How to get started using Python's asyncio. Earlier this year, I attended PyCon, the international Python conference. One topic, presented at numerous talks and discussed informally in the hallway, was ...