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Escaping regex string
...ort re
>>> re.escape('^a.*$')
'\\^a\\.\\*\\$'
If you are using a Python version < 3.7, this will escape non-alphanumerics that are not part of regular expression syntax as well.
If you are using a Python version < 3.7 but >= 3.3, this will escape non-alphanumerics that are not par...
Is there a difference between “raise exception()” and “raise exception” without parenthesis?
...can pass it arguments if needed).
The usual style that most people use in Python (i.e. in the standard library, in popular applications, and in many books) is to use raise MyException when there are no arguments. People only instantiate the exception directly when there some arguments need to be p...
Configure Flask dev server to be visible across the network
...ecause in debugging mode a user of the
application can execute arbitrary Python code on your computer. If you
have debug disabled or trust the users on your network, you can make
the server publicly available.
Just change the call of the run() method to look like this:
app.run(host='...
How to ignore files/directories in TFS for avoiding them to go to central source repository?
...onfig file and add the following contents and save it:
NuGet.config:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<solution>
<add key="disableSourceControlIntegration" value="true" />
</solution>
</configuration>
Go back in your .sln's...
RuntimeWarning: invalid value encountered in divide
...
Python indexing starts at 0 (rather than 1), so your assignment "r[1,:] = r0" defines the second (i.e. index 1) element of r and leaves the first (index 0) element as a pair of zeros. The first value of i in your for loop is ...
Ways to circumvent the same-origin policy
... all browsers:
function createCORSRequest(method, url){
var xhr = new XMLHttpRequest();
if ("withCredentials" in xhr){
xhr.open(method, url, true);
} else if (typeof XDomainRequest != "undefined"){
xhr = new XDomainRequest();
xhr.open(method, url);
} else {
...
How to plot multiple functions on the same figure, in Matplotlib?
...
Perhaps a more pythonic way of doing so.
from numpy import *
import math
import matplotlib.pyplot as plt
t = linspace(0,2*math.pi,400)
a = sin(t)
b = cos(t)
c = a + b
plt.plot(t, a, t, b, t, c)
plt.show()
...
python plot normal distribution
Given a mean and a variance is there a simple function call which will plot a normal distribution?
8 Answers
...
Access restriction on class due to restriction on required library rt.jar?
...ure you exclude the jar files with the same classes.
For me I have: javax.xml.soap.SOAPPart in three different jars: axis-saaj-1.4.jar, saaj-api-1.3.jar and the rt.jar
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Android - shadow on text?
...
You can do both in code and XML. Only 4 basic things to be set.
shadow color
Shadow Dx - it specifies the X-axis offset of shadow. You can give -/+ values, where -Dx draws a shadow on the left of text and +Dx on the right
shadow Dy - it specifies the ...