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Python try…except comma vs 'as' in except
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If you want to support all python versions you can use the sys.exc_info() function like this:
try:
a = 1/'0'
except (ZeroDivisionError, TypeError):
e = sys.exc_info()[1]
print(e.args[0])
(source:http://python3porting.com/noconv.html)
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How to remove leading zeros using C#
... how long the NVARCHAR is, as a few of the above (especially the ones that convert through IntXX) methods will not work for:
String s = "005780327584329067506780657065786378061754654532164953264952469215462934562914562194562149516249516294563219437859043758430587066748932647329814687194673219673294...
Get Android API level of phone currently running my application [duplicate]
...ll have to use android.os.Build.VERSION.SDK, which is a String that can be converted to the integer of the release.
If you are on at least API version 4 (Android 1.6 Donut), the current suggested way of getting the API level would be to check the value of android.os.Build.VERSION.SDK_INT, which is ...
How to get terminal's Character Encoding
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This is what worked for me on a CentOS system. It showed the system encoding based upon current language settings. The terminal settings used to get to that machine are a different story and a function of the client being used.
– Phil DD
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How to get a enum value from string in C#?
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This code snippet illustrates obtaining an enum value from a string. To convert from a string, you need to use the static Enum.Parse() method, which takes 3 parameters. The first is the type of enum you want to consider. The syntax is the keyword typeof() followed by the name of the enum class in...
jsonify a SQLAlchemy result set in Flask [duplicate]
...(inst, cls):
"""
Jsonify the sql alchemy query result.
"""
convert = dict()
# add your coversions for things like datetime's
# and what-not that aren't serializable.
d = dict()
for c in cls.__table__.columns:
v = getattr(inst, c.name)
if c.type in con...
What is the difference between static_cast and C style casting?
...o, static_cast conversion is not necessarily safe.
static_cast is used to convert from pointer to base class to pointer to derived class, or between native types, such as enum to int or float to int.
The user of static_cast must make sure that the conversion is safe.
The C-style cast does not pe...
How to get last inserted id?
... myCommand.Parameters.AddWithValue("@GameId", newGameId);
primaryKey = Convert.ToInt32(myCommand.ExecuteScalar());
myConnection.Close();
}
This will work.
share
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How large should my recv buffer be when calling recv in the socket library
... It doesn't really matter too much. If your protocol is a transactional / interactive one just pick a size that can hold the largest individual message / command you would reasonably expect (3000 is likely fine). If your protocol is transferring bulk data, then larger buffers can be more efficient...
byte + byte = int… why?
.../byte efficient instructions. Those that don't generally have a store-and-convert-to-signed-value-of-some-bit-length.
In other words, this decision must have been based on perception of what the byte type is for, not due to underlying inefficiencies of hardware.
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