Retrieving a List from a Map in Python 3.x
In Python 2.6, mapping an iterable to a new value using the map function returned a list. However, in Python 3.x, the map function returns an iterator, which can be more memory-efficient.
To retrieve the mapped values as a list in Python 3.x, you can use the list constructor:
my_list = list(map(chr, [66, 53, 0, 94]))
Alternative Approaches
Alternatively, there are other ways to convert an iterable to a list of hex values:
my_list = [hex(i) for i in [66, 53, 0, 94]]
my_list = list("\x" + hex(i)[2:] for i in [66, 53, 0, 94])
Performance Considerations
In general, using a list comprehension is more efficient than using a loop with a map object. However, if you need to iterate over the values multiple times, using a map object can save memory since it lazily produces values.
The above is the detailed content of How Do I Convert a Map Iterator to a List in Python 3.x?. For more information, please follow other related articles on the PHP Chinese website!