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Why does substring slicing with index out of range work?
...can still return an empty sequence.
Part of what's confusing here is that strings behave a little differently from lists. Look what happens when you do the same thing to a list:
>>> [0, 1, 2, 3, 4, 5][3]
3
>>> [0, 1, 2, 3, 4, 5][3:4]
[3]
Here the difference is obvious. In the ...
Convert .pem to .crt and .key
... is used instead.
-engine id
specifying an engine (by its unique id string) will cause rsa to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms.
NOTES
The PEM private key ...
Raise warning in Python without interrupting program
... @Tomas Novotny you can capture stdout and stderr, then check that the strings issued by your warning are found within.
– wheaties
Oct 8 '10 at 15:33
16
...
Recreating a Dictionary from an IEnumerable
I have a method that returns an IEnumerable<KeyValuePair<string, ArrayList>> , but some of the callers require the result of the method to be a dictionary. How can I convert the IEnumerable<KeyValuePair<string, ArrayList>> into a Dictionary<string, ArrayList> so th...
Display lines number in Stack Trace for .NET assembly in Release mode
...
This works every time. You just need to substring the stack trace message. Real Easy! Also, in vb.net you do need to do the "Show All Files" and include the pdb.
'Err is the exception passed to this function
Dim lineGrab As String = err.StackTrace.Substring(err.Stac...
How to write binary data to stdout in python 3?
...g shutil.copyfileobj even when the source file object gives bytes, and not strings. +1
– csl
Jun 19 '15 at 14:45
1
...
What Makes a Method Thread-safe? What are the rules?
...ently without issue.
public class Thing
{
public int ThreadSafeMethod(string parameter1)
{
int number; // each thread will have its own variable for number.
number = parameter1.Length;
return number;
}
}
This is also true if the method calls other class method ...
What is the difference between JavaConverters and JavaConversions in Scala?
...ies | asScala | scala.collection.mutable.Map[String, String]
To use the conversions directly from Java, though, you're better off calling methods from JavaConversions directly; e.g.:
List<String> javaList = new ArrayList<String>(Arrays.asList("a", "b", "c...
Why is volatile not considered useful in multithreaded C or C++ programming?
...ic operations necessary to implement a mutex; it only has volatile to make extra guarantees about ordinary operations.
Now you have something like this:
pthread_mutex_lock( &flag_guard_mutex );
my_local_state = my_shared_flag; // critical section
pthread_mutex_unlock( &flag_guard_mutex );
...
Suppress/ print without b' prefix for bytes in Python 3
...t that will print as wish. In particular, repr(b'\x01')[2:-1] returns the string \\x01, while decode() will return \x01 which does not work as one would wish with print(). To be even more explicit, print(repr(b'\x01')[2:-1]) will print \x01 while print(b'\x01'.decode()) will not print anything.
...