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… ...

For loops are a bit of a nuisance in Python. My other, and bigger problems with Python is the horrible significance of using indentation to create loops, and that variables get added mysteriously ...

A better strategy, and a traditional one in Python, is to read through the file's contents one line at a time. This is accomplished by putting an open "file" object into a for loop; file objects are ...