
python - Understanding the map function - Stack Overflow
Jun 11, 2012 · The Python 2 documentation says: Built-in Functions: map (function, iterable, ...) Apply function to every item of iterable and return a list of the results. If additional iterable …
python - Map list item to function with arguments - Stack Overflow
Is there any way to map list items to a function along with arguments? I have a list: pages = [p1, p2, p3, p4, p5...] And I have to call function myFunc corresponding to each list elements along …
Mapping over values in a python dictionary - Stack Overflow
Sep 1, 2012 · Mutating Dictionary Values In Place Using Zip And Map Here is how I handle the situation of wanting to mutate the values of a dictionary using map without creating a new data …
How to use map () to call methods on a list of objects
Can you explain the use of the lambda function? I thought map passed the elements of the list as parameters to the function. How does the lambda function accept the objects as parameters?
Getting a map() to return a list in Python 3.x - Stack Overflow
list(map(chr,[66,53,0,94])) In Python 3+, many processes that iterate over iterables return iterators themselves. In most cases, this ends up saving memory, and should make things go faster. If …
python - How to do multiple arguments to map function where …
In Python 2, it's necessary to provide the length argument to repeat(), since map() will run until the longest iterator is exhausted in that version of Python, filling in None for all missing values. …
python - Most efficient way to map function over numpy array
Feb 5, 2016 · What is the most efficient way to map a function over a numpy array? I am currently doing: import numpy as np x = np.array([1, 2, 3, 4, 5]) # Obtain array of square ...
python - Using the map function - Stack Overflow
In Python 2, map would apply a function to the values of an iterable and return a list. In Python 3, map returns an iterator that applies the function to the iterated values as you loop over it.
python - multiprocessing.Pool: When to use apply, apply_async or …
Dec 16, 2011 · Pool.map (or Pool.apply)methods are very much similar to Python built-in map (or apply). They block the main process until all the processes complete and return the result.
python - How to use multiprocessing pool.map with multiple …
In the Python multiprocessing library, is there a variant of pool.map which supports multiple arguments?