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Sending HTML email using Python
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for python3, improve @taltman 's answer:
use email.message.EmailMessage instead of email.message.Message to construct email.
use email.set_content func, assign subtype='html' argument. instead of low level func set_payload and ...
Counting the Number of keywords in a dictionary in python
...Some modifications were made on posted answer UnderWaterKremlin to make it python3 proof. A surprising result below as answer.
System specs:
python =3.7.4,
conda = 4.8.0
3.6Ghz, 8 core, 16gb.
import timeit
d = {x: x**2 for x in range(1000)}
#print (d)
print (len(d))
# 1000
print (len(d.keys()...
How to convert list of tuples to multiple lists?
...ppend is 3x - 4x faster than zip! The test script is here:
#!/usr/bin/env python3
import time
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
t1 = time.time()
xs_, ys_ = zip(*zs)
print(len(xs_), len(ys_))
t2 = time.time()
xs_, ys_ = [], []
for x, y in zs:
...
What does -> mean in Python function definitions?
...cause most python libraries still aim to be compatible with python2.x. As python3.x begins to become more standard, we might see more of these things popping up here and there...
– mgilson
Jan 17 '13 at 14:15
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multiprocessing: How do I share a dict among multiple processes?
... that can be converted to dict
pprint.pprint(dict(d))
Output:
$ python3 mul.py
{22562: 'Hi, I was written by process 22562',
22563: 'Hi, I was written by process 22563',
22564: 'Hi, I was written by process 22564',
22565: 'Hi, I was written by process 22565',
22566: 'Hi, I was writte...
Python Sets vs Lists
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@RyneWang this is true, but only for Python3. In Python2 range returns a normal list (that's why exists horrible things like xrange)
– Manoel Vilela
Dec 11 '18 at 17:55
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Python - List of unique dictionaries
... 34, 'id': 1, 'name': 'john'}, {'age': 30, 'id': 2, 'name': 'hanna'}]
In Python3
>>> L=[
... {'id':1,'name':'john', 'age':34},
... {'id':1,'name':'john', 'age':34},
... {'id':2,'name':'hanna', 'age':30},
... ]
>>> list({v['id']:v for v in L}.values())
[{'age': 34, 'id': 1, 'nam...
Getting the name of a variable as a string
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On python3, this function will get the outer most name in the stack:
import inspect
def retrieve_name(var):
"""
Gets the name of var. Does it from the out most frame inner-wards.
:param var: variable t...
Find the most common element in a list
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This breaks on Python3 if your list has different types.
– AlexLordThorsen
Feb 24 '16 at 22:47
2
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深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... ISR 能正常工作了，我提供了完整的示例源码和磁盘映像下载：interrupt_demo
2. 保护模式下的中断机制
引入保护模式后，情形变得复杂多了，实施了权限控制机制，为了支持权限的控制增添了几个重要的数据结构，下面是与中...