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How to delete an item in a list if it exists?
...essions are not always more efficient than list comprehensions - please profile before complaining
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Task not serializable: java.io.NotSerializableException when calling function outside closure only o
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i am facing the same problem in Java, i am trying to use FileWriter class from Java IO package inside RDD foreach method. Can you please let me know how we can solve this.
– Shankar
Jul 23 '15 at 8:46
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How to think in data stores instead of databases?
...n have any structure to an entity and store in one location (kind of a big file with no structure to it, each line has structure of its own).
Now back to original comment, google datastore and bigtable are two different things so do not confuse google datastore to datastore data storage sense. Bigt...
Django: Why do some model fields clash with each other?
...p',
'myapp.module',
Django seems to process the myapp.mymodule models.py file twice and throws the above error. This can be resolved by not including the main module in the INSTALLED_APPS list:
'myapp.module',
Including the myapp instead of myapp.module causes all the database tables to be crea...
Should __init__() call the parent class's __init__()?
...l since nothing in E initializes b...
Traceback (most recent call last):
File "<pyshell#70>", line 1, in <module>
e.b # This is going to fail since nothing in E initializes b...
AttributeError: 'E' object has no attribute 'b'
__del__ is the same way, (but be wary of relying on _...
What is the use of Enumerable.Zip extension method in Linq?
... name Zip throw you off. It has nothing to do with zipping as in zipping a file or a folder (compressing). It actually gets its name from how a zipper on clothes works: The zipper on clothes has 2 sides and each side has a bunch of teeth. When you go in one direction, the zipper enumerates (travels)...
How to Test a Concern in Rails
... github.com/grosser/parallel_tests/issues/168 parallel_tests are based per file, so shared examples should not slow it down. I would also argue that properly grouped shared behaviors, trumps testing speed.
– Aaron K
Apr 9 '14 at 22:16
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What is the maximum possible length of a .NET string?
... one of the stream-based classes especially, if your data is coming from a file.
The problem with s += "stuff" is that it has to allocate a completely new area to hold the data and then copy all of the old data to it plus the new stuff - EACH AND EVERY LOOP ITERATION. So, adding five bytes to 1,000...
How do you test private methods with NUnit?
...n a 'UnitTest' namespace below the 'default' for that assembly - each test file is wrapped in a:
#if DEBUG
...test code...
#endif
block, and all of that means that a) it's not being distributed in a release and b) I can use internal/Friend level declarations without hoop jumping.
The other thi...
How to use ScrollView in Android?
I have an XML layout file, but the text is more than fits into the screen size. What do I need to do in order to make a ScrollView ?
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