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Are HTTPS headers encrypted?
... authorized, Couldn't the gateway unencrypt them, observe the Host header, then determine which host to send the packets to?
– Pacerier
Dec 12 '14 at 3:31
3
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How can I check for Python version in a program that uses new language features?
...s being installed by setuptools, byte-compiling the source files will fail then. Also, all the contortions to produce a run-time error message seem a little pointless -- why not just document the requirements and leave it at that?
– John Machin
Sep 14 '09 at 23...
Access parent DataContext from DataTemplate
... for all itemscontrols that implement the same template? Name is unique so then we would need a separate template for each, unless I am missing something.
– Chris
Nov 3 '14 at 17:53
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How do you mock out the file system in C# for unit testing?
...ng a 'real' implementation which uses
System.IO.File.Exists() etc. You can then mock this interface using a
mocking framework; I recommend Moq.
Edit: somebody's done this and kindly posted it online here.
I've used this approach to mock out DateTime.UtcNow in an IClock
interface (really really usefu...
Client-server synchronization pattern / algorithm?
...What revision should I have?") before attempting to synchronize. And even then, the query ("All deltas since 2149") is delightfully simple for the client and server to process.
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Why are my basic Heroku apps taking two seconds to load?
...nd quickly when requested. If this was a threat to Heroku's business model then they'd stop us doing it. When I've got thousands of global users I'll spin up another dyno and start paying for what is a great service. So quit with the guilt-trip thing! :)
– ED-209
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How to delete a specific line in a file?
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First, open the file and get all your lines from the file. Then reopen the file in write mode and write your lines back, except for the line you want to delete:
with open("yourfile.txt", "r") as f:
lines = f.readlines()
with open("yourfile.txt", "w") as f:
for line in lines:...
How to write a foreach in SQL Server?
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Suppose that the column PractitionerId is a unique, then you can use the following loop
DECLARE @PractitionerId int = 0
WHILE(1 = 1)
BEGIN
SELECT @PractitionerId = MIN(PractitionerId)
FROM dbo.Practitioner WHERE PractitionerId > @PractitionerId
IF @PractitionerId IS ...
Apache Spark: map vs mapPartitions?
...e more startup overhead.) If you would be performing multiple operations, then mapPartitions seems to be quite a bit faster -- I'm assuming this is because it reads the RDD only once. Even if the RDD is cached in RAM, that saves a lot of overhead from type conversion.
– Bob
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Maven command to list lifecycle phases along with bound goals?
...ithout actually running Maven. This should become better in Maven 3. Until then, run Maven with -X which will print a whole lot of debug output plus the current phase and which plugins are executed.
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