大约有 40,000 项符合查询结果（耗时：0.0248秒） [XML]
Why is iterating through a large Django QuerySet consuming massive amounts of memory?
... Thanks for the great answer, @eternicode. In the end we dropped down to raw SQL for the desired database-level iteration.
– davidchambers
Aug 13 '11 at 21:15
2
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Convert Python dictionary to JSON array
...sr/lib/python2.7/json/decoder.py", line 365, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 381, in raw_decode
obj, end = self.scan_once(s, idx)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xff in position 0: invalid start...
HTML in string resource?
...in layout.
<item
android:id="@+id/nav_premium"
android:icon="@drawable/coins"
android:title="@string/menu_item_purchase"
/>
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GitHub README.md center image
...e worried about not using too much github bandwith, you can give a look to Raw Git, that serves files stored on GitHub, caching them on their system. So, just one access is performed on the resource on GitHub, saving their bandwith.
– danidemi
Feb 15 '15 at 13:...
Smooth GPS data
... wrong...(Below is image url, blue is filtered locations' path, orange are raw locations) app.box.com/s/w3uvaz007glp2utvgznmh8vlggvaiifk
– umesh
Apr 28 '15 at 13:43
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How to avoid “cannot load such file — utils/popen” from homebrew on OSX
...
Uninstall homebrew:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Then reinstall
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Warning: This script will remove: /Library/Caches/Hom...
How to check task status in Celery?
...et()? This is an instance of the AsyncResult class, but you cannot use the raw class celery.result.AsyncResult, you need to get the class from the function wrapped by app.task(). In you case you would do async_result = run_instance.AsyncResult('task-id')
– ArnauOrriols
...
Best way to check if object exists in Entity Framework?
...h I also sorted and trimmed to keep its length manageable).
Note that the raw data was a CSV file that contained many individual records that had to be parsed. The records in each consecutive file (which came at a rate of about 1 every 5 minutes) overlapped considerably, hence the high percentage ...
Why do I need 'b' to encode a string with Base64?
..., base64 encoding has to do the encoding in the opposite direction (so the raw data is converted to 'dGVzdA') and also has a rule to tell other applications how much space is left off at the end. This is done by padding the end with '=' symbols. So, the base64 encoding of this data is 'dGVzdA==', wi...
Why all the Active Record hate? [closed]
...it's ugly, but for the cases where you just plain and simply need to write raw SQL, it's easily done.
@Tim Sullivan
...and you select several instances of the model, you're basically doing a "select * from ..."
Code:
people = Person.find(:all, :select=>'name, id')
This will only sel...