Daniel Wagner-Hall added the comment:
Is anything blocking this patch's submission?
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Python tracker rep...@bugs.python.org
http://bugs.python.org/issue15836
New submission from Daniel Wagner-Hall:
Importing the same module twice should only execute its code once, and should
only lead to one copy of the classes defined in the module's file.
If a subdirectory of $PWD is on $PYTHONPATH, and a package is imported both
relative to $PWD and relative
Daniel Wagner-Hall added the comment:
That is indeed the behaviour I'm talking about.
In particular I came across this where two libraries imported an exception type
using different sys.path traversals, which both led to the same file, and a
try-catch didn't catch the exception because it had
Daniel Wagner-Hall added the comment:
Cool, my contributor agreement has been received, please merge if happy!
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___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue15836
New submission from Daniel Wagner-Hall:
The following code in a unittest test is a no-op:
self.assertRaises(lambda: 1)
I would expect this to fail the test, because I naively assumed omitting the
exception class would act as:
self.assertRaises(BaseException, lambda: 1)
verifying that *any
Daniel Wagner-Hall added the comment:
I seem to be getting exceptions why trying to upload a new patch to rietveld,
either by the web interface (in several browsers), or by upload.py - attaching
new patchset here
Also, if I wanted to backport to 2.7 including an isinstance(e,
types.ClassType
Daniel Wagner-Hall added the comment:
Added patch for 2.7.
I'll sign the contributor form just as soon as I can get to a printer.
Thanks for taking me through my first contribution.
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versions: +Python 2.7
Added file: http://bugs.python.org/file27081/issue15836-2.7.patch
Daniel Wagner-Hall dawag...@gmail.com added the comment:
Explanation of behaviour at
http://stackoverflow.com/questions/7700929/python-multiprocessing-map-if-one-thread-raises-an-exception-why-arent-other
tl;dr SIGTERM kills subprocesses and finally blocks aren't called.
I still consider
New submission from Daniel Wagner-Hall dawag...@gmail.com:
import random
from multiprocessing import Pool
from time import sleep
def Process(x):
try:
print x
sleep(random.random())
raise Exception('Exception: ' + x)
finally:
print 'Finally: ' + x
Pool(3).map(Process, ['1
Many thanks for all these suggestions! here is a short proof that you
guys are absolutely right and my solution is pretty inefficient.
One of your ways:
$ python /[long_path]/timeit.py 'a=[(1,2,3),(4,5,6)];b=(7,8);[x+(y,)
for x,y in zip(a,b)]'
100 loops, best of 3: 1.44 usec per loop
And my
[b.pop(0)]
This has to lookup the global b, resize it, create a new list,
concatenate it with the list x (which creates a new list, not an in-place
concatenation) and return that. The amount of work is non-trivial, and I
don't think that 3us is unreasonable.
I forgot to take account
:
a = [(1,2,3,7), (4,5,6)]
It was possible for me to create this output using a for i in a
technique but I think this isn't a very nice way and there should
exist a solution using the map(), zip()-functions
I appreciate any hints how to solve this problem efficiently.
Greetings,
Daniel Wagner
On Oct 19, 8:35 pm, James Mills prolo...@shortcircuit.net.au wrote:
On Wed, Oct 20, 2010 at 10:16 AM, Daniel Wagner
brocki2...@googlemail.com wrote:
My short question: I'm searching for a nice way to merge a list of
tuples with another tuple or list. Short example:
a = [(1,2,3), (4,5,6
I used the following code to add a single fixed value to both tuples.
But this is still not what I want...
a = [(1,2,3), (4,5,6)]
b = 1
a = map(tuple, map(lambda x: x + [1], map(list, a)))
a
[(1, 2, 3, 1), (4, 5, 6, 1)]
What I need is:
a = [(1,2,3), (4,5,6)]
b = (7,8)
a = CODE
a
[(1,2,3,7),
SOLVED! I just found it out
I'm searching for a nice way to merge a list of
tuples with another tuple or list. Short example:
a = [(1,2,3), (4,5,6)]
b = (7,8)
After the merging I would like to have an output like:
a = [(1,2,3,7), (4,5,6)]
The following code solves the problem:
a =
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