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Difference between two dates in Python
... d2 = d2.strftime("%Y-%m-%d")
return abs((d2 - d1).days)
This will convert your datetime objects to strings but, two things
1) Trying to do d2 - d1 will fail as you cannot use the minus operator on strings and
2) If you read the first line of the above answer it stated, you want to use the ...
When to use DataContract and DataMember attributes?
...the Data Contract Serializer by default to serialize and deserialize data (convert it to and from XML). All .NET Framework primitive types, such as integers and strings, as well as certain types treated as primitives, such as DateTime and XmlElement, can be serialized with no other preparation and a...
What is the most effective way for float and double comparison?
...er.
Bits bits_; // The bits that represent the number.
};
// Converts an integer from the sign-and-magnitude representation to
// the biased representation. More precisely, let N be 2 to the
// power of (kBitCount - 1), an integer x is represented by the
// unsigned number x + N...
Repeat each row of data.frame the number of times specified in a column
...q(nrow(df)), df$freq), 1:2]
The code for data.table is a tad cleaner:
# convert to data.table by reference
setDT(df)
df.expanded <- df[rep(seq(.N), freq), !"freq"]
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About catching ANY exception
...{0}): {1}".format(errno, strerror)
except ValueError:
print "Could not convert data to an integer."
except:
print "Unexpected error:", sys.exc_info()[0]
raise
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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...le scanning for a :label, <Ctrl-Z>, is treated as itself - it is not converted to <LF>
Phase 1) Percent Expansion:
A double %% is replaced by a single %
Expansion of arguments (%*, %1, %2, etc.)
Expansion of %var%, if var does not exist replace it with nothing
Line is truncated at fi...
How do I view the SQL generated by the Entity Framework?
... with EF6, I could get it only with reflection. but first, I had to convert result to System.Data.Entity.Infrastructure.DbQuery<T>, then get internal property InternalQuery as (System.Data.Entity.Internal.Linq.InternalQuery<T>), and only then, use ToTraceString()
...
How do you get a string from a MemoryStream?
...
Using a StreamReader to convert the MemoryStream to a String.
<Extension()> _
Public Function ReadAll(ByVal memStream As MemoryStream) As String
' Reset the stream otherwise you will just get an empty string.
' Remember the position s...
Decompressing GZip Stream from HTTPClient Response
...d JSON
response = client.GetAsync(url).Result;
//converts JSON to string
string responseJSONContent = response.Content.ReadAsStringAsync().Result;
//deserializes string to list
var jsonList = DeSerializeJsonString(responseJSONContent);
...
How to compare DateTime in C#?
...
you can convert datetime to string
– Dieu Phan Dinh
Nov 21 '16 at 8:24
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