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How to input a regex in string.replace?
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import os, sys, re, glob
pattern = re.compile(r"\<\[\d\>")
replacementStringMatchesPattern = "<[1>"
for infile in glob.glob(os.path.join(os.getcwd(), '*.txt')):
for line in reader:
retline = pattern.sub(replacem...
Android image caching
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Convert them into Bitmaps and then either store them in a Collection(HashMap,List etc.) or you can write them on the SDcard.
When storing them in application space using the first approach, you might want to wrap them around...
Perform an action in every sub-directory using Bash
...o find "$D" -type d > /dev/null; done
real 0m0.327s
user 0m0.084s
sys 0m0.236s
# Option B
$ time for D in `find ./big_dir/* -type d`; do echo "$D" > /dev/null; done
real 0m0.787s
user 0m0.484s
sys 0m0.308s
...
Convert NSArray to NSString in Objective-C
I am wondering how to convert an NSArray [@"Apple", @"Pear ", 323, @"Orange"] to a string in Objective-C .
9 Answers
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How to change string into QString?
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If compiled with STL compatibility, QString has a static method to convert a std::string to a QString:
std::string str = "abc";
QString qstr = QString::fromStdString(str);
share
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improve ...
How to reference generic classes and methods in xml documentation
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None of the answers shown so far work completely for me. ReSharper won't convert the see tag into a Ctrl+click-able link (e.g. ) unless it completely resolves.
If the method in the OP were in a namespace called Test, the completely resolved link to the method shown would be:
<see cref="M:Test...
Why is “if not someobj:” better than “if someobj == None:” in Python?
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In the first test, Python try to convert the object to a bool value if it is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm :
If the object has a __nonzero__ special method (as do...
Understanding implicit in Scala
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In scala implicit works as:
Converter
Parameter value injector
Extension method
There are 3 types of use of Implicit
Implicitly type conversion : It converts the error producing assignment into intended type
val x :String = "1"
val y:Int = x
String...
How to export DataTable to Excel
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Try simple code, to convert DataTable to excel file as csv:
var lines = new List<string>();
string[] columnNames = dataTable.Columns
.Cast<DataColumn>()
.Select(column => column.ColumnName)
.ToArray();
var header = ...
Explaining Python's '__enter__' and '__exit__'
...ptional case is handled here
exc = False
if not exit(mgr, *sys.exc_info()):
raise
# The exception is swallowed if exit() returns true
finally:
# The normal and non-local-goto cases are handled here
if exc:
exit(mgr, None, None, None)
try some cod...