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Is there a way for multiple processes to share a listening socket?
...ost others have provided the technical reasons why this works. Here's some python code you can run to demonstrate this for yourself:
import socket
import os
def main():
serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
serversocket.bind(("127.0.0.1", 8888))
serversocket....
How to get a function name as a string?
In Python, how do I get a function name as a string, without calling the function?
12 Answers
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What is a Portable Class Library?
...rary project:
mscorlib.dll
System.dll
System.Core.dll
System.Xml.dll
System.ComponentModel.Composition.dll
System.Net.dll
System.Runtime.Serialization.dll
System.ServiceModel.dll
System.Xml.Serialization.dll
System.Windows.dll (from Silverlight)
You can find which...
MDI CDockablePane使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
.... CFrameWndEx:: OnCreate() 在Create函数中自动生成了以下代码，对MFC比较熟悉的这里就不讲了：
CMFCPopupMenu::SetForceMenuFocus(FALSE);
InitUserToolbars(NULL, uiFirstUserToolBarId, uiLastUserToolBarId);
EnablePaneMenu(TRUE, ID_VIEW_CUSTOMIZE, 0, ID_VIEW_TOOLBAR);
CDockin...
How to get the entire document HTML as a string?
...
You can do
new XMLSerializer().serializeToString(document)
in browsers newer than IE 9
See https://caniuse.com/#feat=xml-serializer
share
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Concatenating two one-dimensional NumPy arrays
...oncatenate(a1, a2, a3) or numpy.concatenate(*[a1, a2, a3]) if you prefer. Python's fluid enough that the difference ends up feeling more cosmetic than substantial, but it's good when the API is consistent (e.g. if all the numpy functions that take variable length argument lists require explicit seq...
Sort a list by multiple attributes?
...Or you can achieve the same using itemgetter (which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operator.itemgetter(1, 2))
And notice that here you can use sort instead of using sorted and then reassigning:
s.sort(key = operator.itemgetter(1, 2))
...
How to convert floats to human-readable fractions?
...
From Python 2.6 on there is the fractions module.
(Quoting from the docs.)
>>> from fractions import Fraction
>>> Fraction('3.1415926535897932').limit_denominator(1000)
Fraction(355, 113)
>>> from mat...
How to print a groupby object
...the first group call list(df_g)[0]. This is one thing I like about R over Python. In R you don't have to iterate through most object to see the data, but Python you have to on a lot of the object. Finding proceses like this are refreshing. Thanks Elizabeth.
– PVic
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Getting a list of values from a list of dicts
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This "magic" is known as list comprehension docs.python.org/3/tutorial/…
– William Ardila
Mar 22 at 2:58
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