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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...
Counting inversions in an array
...
In Python
# O(n log n)
def count_inversion(lst):
return merge_count_inversion(lst)[1]
def merge_count_inversion(lst):
if len(lst) <= 1:
return lst, 0
middle = int( len(lst) / 2 )
left, a = merge_cou...
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 ...
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()
...
Checkout multiple git repos into same Jenkins workspace
...e "Check out to a sub-directory"
if you are using ant, as now the build.xml file with the build targets in not in the root directory of the workspace but in a subdirectory, you have to reflect that in the "Invoke Ant" configuration. To do that, in "Invoke ant", press "Advanced" and fill the "Buil...
WCF chokes on properties with no “set ”. Any workaround?
...e custom serialization of primitive types (perhaps a custom time format in XML) without needing to wield the intimidating IDataContractSurrogate.
– rh.
Mar 1 '10 at 18:02
28
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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 make an Android device vibrate?
...ate(500);
}
Note:
Don't forget to include permission in AndroidManifest.xml file:
<uses-permission android:name="android.permission.VIBRATE"/>
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ServiceStack vs ASP.Net Web API [closed]
... of the excellent MVC Mini Profiler)
Includes Sql Profiling
JSON/JSONP, XML, JSV, CSV and SOAP end-points
The RestServiceBase and ServiceBase classes are intended to host your custom C# logic for maximum potential re-use as possible, e.g. Its DTO-first design trivially allows for deferred and p...