When should you use generator expressions and when should you use list comprehensions in Python? # Generator expression (x*2 for x in range(256)) # List comprehension [x*2 for x in range(256)]

Apr 16, 2013 · Python: convert list to generator Asked 12 years, 8 months ago Modified 1 year, 4 months ago Viewed 76k times

Python 2.5 added the ability to pass values back in to the generator as well. In doing so, the passed-in value is available as an expression resulting from the yield statement which had temporarily returned …

Sep 28, 2022 · extend has a generator expression as the argument, so it goes ahead and evaluates the expression first generator expression is evaluated to [2, 4] now extend the original list a with [2, 4] …

I would like to measure the execution time of each generator invocation. What's a reasonably elegant & pythonic way to structure a loop that can get the timestamp before and after each invocation?

May 21, 2017 · list_form = [ item for item in some_generator ] I need to sort the data before iteration, thus can't use the generator directly in my loop.

Slicing a generator import itertools top5 = itertools.islice(my_list, 5) # grab the first five elements You can't slice a generator directly in Python. itertools.islice() will wrap an object in a new slicing …

What is the difference between iterators and generators? Some examples for when you would use each case would be helpful.

When I'm debugging in Python using IPython, I sometimes hit a break-point and I want to examine a variable that is currently a generator. The simplest way I can think of doing this is converting it...

<generator object <genexpr> at 0x7fa3cd3d59b0> Where should I put the list,or I need to rewrite the code? I want my program to pen the file and read the content so for specific lines that are written in …