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Python multiprocessing pool.map for multiple arguments
In the Python multiprocessing library, is there a variant of pool.map which supports multiple arguments?
19 Answers
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 2: ordinal not in range(128)
...o .decode() with the appropriate encoding, of course. If nothing is given, python assumes ASCII, which obviously fails on non-ASCII-characters.
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How to define a two-dimensional array?
...ou have to first initialize the outer list with lists before adding items; Python calls this
"list comprehension".
# Creates a list containing 5 lists, each of 8 items, all set to 0
w, h = 8, 5;
Matrix = [[0 for x in range(w)] for y in range(h)]
You can now add items to the list:
Matrix[0][0] =...
Best way to add Activity to an Android project in Eclipse?
...ivity via the manifest editor like this:
Double click on AndroidManifest.xml in the package explorer.
Click on the "Application" tab of the manifest editor
Click on "Add.." under the "Application Nodes" heading (bottom left of the screen)
Choose Activity from the list in the dialog that pops up (i...
Android: how to handle button click
...s the least used in Android. As I understand, you should separate your UI (XML) and computational functionality (Java Class Files). It also makes for easier debugging. It is actually a lot easier to read this way and think about Android imo.
Question 2:
I believe the two mainly used are #2 and #3. I...
What does the caret operator (^) in Python do?
I ran across the caret operator in python today and trying it out, I got the following output:
5 Answers
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How to check if an object is a list or tuple (but not string)?
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In python 2 only (not python 3):
assert not isinstance(lst, basestring)
Is actually what you want, otherwise you'll miss out on a lot of things which act like lists, but aren't subclasses of list or tuple.
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Flattening a shallow list in Python [duplicate]
... hadn't heard from from_iterable. it's prettier than the *, if less pythonic
– Jules G.M.
Mar 29 '16 at 22:04
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What is the use of “assert” in Python?
...condition, and immediately trigger an error if the condition is false.
In Python, it's roughly equivalent to this:
if not condition:
raise AssertionError()
Try it in the Python shell:
>>> assert True # nothing happens
>>> assert False
Traceback (most recent call last):
F...
How to check Google Play services version?
...m Google Play services package version
(declared in AndroidManifest.xml android:versionCode)
in order to be compatible with this client version.
Constant Value: 3225000 (0x003135a8)
So, when you set that in your manifest and then call isGooglePlayServicesAvailable(context):
p...