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Is it possible only to declare a variable without assigning any value in Python?
...duced the notion of type comments to annotate variables:
# 'captain' is a string (Note: initial value is a problem)
captain = ... # type: str
PEP 526 aims at adding syntax to Python for annotating the types of variables (including class variables and instance variables), instead of expressing th...
How can I connect to MySQL in Python 3 on Windows?
...or
Almost completely compatible with MySQLdb, after calling pymysql.install_as_MySQLdb()
https://pypi.python.org/pypi/cymysql
fork of pymysql with optional C speedups
https://pypi.python.org/pypi/mysqlclient
Django's recommended library.
Friendly fork of the original MySQLdb, hopes to merge ...
What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]
...pplied directly to non-metric spaces, such as the set of labeled graphs or strings. In fact, the internal kernel function can be generalized properly to virtually any kind of input, provided that the positive definiteness requirement of the kernel is satisfied. On the other hand, to be able to use a...
ERROR ITMS-9000: “Redundant Binary Upload. There already exists a binary upload with build version '
...y in my opinion is to put an integer in build number and a float or dotted string for version.
i.e.
Version: 1.0.0
Build: 2
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Is there a good JavaScript minifier? [closed]
...is pretty easy and can be done by defined groups of files or an easy query string. Minified files are also cached to reduce the server load and you can add expire headers through minify.
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Set android shape color programmatically
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Thanks .. saved my world.
– sid_09
May 4 '16 at 10:20
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Find lines from a file which are not present in another file [duplicate]
...e2 would output:
Bill
Bill
In my case, I wanted to know only that every string in file2 existed in file1, regardless of how many times that line occurred in each file.
Solution 1: use the -u (unique) flag to sort:
comm -13 <(sort -u file1) <(sort -u file2)
Solution 2: (the first "working...
How do you test to see if a double is equal to NaN?
... the following code.
public class Not_a_Number {
public static void main(String[] args) {
// TODO Auto-generated method stub
String message = "0.0/0.0 is NaN.\nsimilarly Math.sqrt(-1) is NaN.";
String dottedLine = "------------------------------------------------";
D...
navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't
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You should not use function inside string. Evil eval works there unnessesarrily. setTimeout("geolocFail()", 10000);
– localhoost
Aug 23 '17 at 16:45
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Design by contract using assertions or exceptions? [closed]
...ulates a URL and is either Null or a valid URL. It is the conversion of a string into a URL that enforces the contract, and an exception is thrown if it is invalid. A method with a URL parameter is much clearer that a method with a String parameter and an assertion that specifies a URL.
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