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Multiprocessing - Pipe vs Queue
...19, in __init__
self.run(args)
File "foo.py", line 46, in run
KeyError: 'that'
Source Code:
"""
multi_pipe.py
"""
from multiprocessing import Process, Pipe
import time
def reader_proc(pipe):
## Read from the pipe; this will be spawned as a separate Process
p_output, p_input =...
INNER JOIN vs LEFT JOIN performance in SQL Server
...bles but possibly entire rows of information. And it happens so nicely, no error messages.
You can be very fast as getting 90% of the needed data and not discover the inner joins have silently removed information. Sometimes inner joins can be faster, but I don't believe anyone making that assumpt...
Possibility of duplicate Mongo ObjectId's being generated in two different collections?
... "abc" }
> db.foo.insert({_id: 'abc', data:'xyz'})
E11000 duplicate key error index: test.foo.$_id_ dup key: { : "abc" }
So, absolutely don't rely on _id's being unique across collections, and since you don't control the ObjectId generation function, don't rely on it.
It's possible to create...
Further understanding setRetainInstance(true)
...1: INFO/TESTING - MYACTIVITY(4790): Instantiated - com.example.MyActivity@405196b0
09-29 13:23:04.851: DEBUG/dalvikvm(4790): GC_EXTERNAL_ALLOC freed 49K, 51% free 2686K/5379K, external 0K/0K, paused 45ms
09-29 13:23:04.881: INFO/TESTING - MYACTIVITY(4790): onCreate - com.example.MyActivity@405196b0
...
Update relationships when saving changes of EF4 POCO objects
...Roles.Remove(f)" instead of the "db.ReportRoles.Remove(f)" I would get the error.
report.ReportRoles.ToList.ForEach(Function(f) db.ReportRoles.Remove(f))
Dim newRoles = If(String.IsNullOrEmpty(model.RolesString), New String() {}, model.RolesString.Split(","))
newRoles.ToList.ForEach(Function(f) db....
Auto-fit TextView for Android
...N_CODES.JELLY_BEAN)" to the onTestSize() method so that Lint won't give an error/warning about it, and initialize it in the CTOR instead. setting the binary search to static is also a good thing, and you could do the initialization on the largest CTOR and call it from the other CTORs. however, it's ...
Extracting text OpenCV
...
Thanks for the detailed answer, however I am getting an error in cv2.findContours. It says ValueError: too many values to unpack.
– Abhijith
Mar 22 '17 at 9:59
1...
What's the right OAuth 2.0 flow for a mobile app
...responses received by the webview from the authentication point and detect error (user cancel) or approval (and extract token from url query parameters).
And I think you can actually do that in all platforms. I have successfully made this work for the following: ios, android, mac, windows store 8.1 ...
Merging: Hg/Git vs. SVN
...
somehow (error in Markdown parser?) the part after <pre>...</pre> block is not indented as it should be...
– Jakub Narębski
Mar 20 '10 at 20:26
...
git + LaTeX workflow
... Also, you can link the latex output to the source file, so if you spot an error or a typo, all you need to do is to click on it and it will take you right to the corresponding point in the source.
– abcd
May 31 '11 at 18:01
...