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Loop through list with both content and index [duplicate]
It is very common for me to loop through a python list to get both the contents and their indexes. What I usually do is the following:
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jupyter notebook选择conda环境 - C/C++ - 清泛网 - 专注C/C++及内核技术
...：
conda install ipykernel
将环境写入notebook的kernel中
python -m ipykernel install --user --name 环境名称 --display-name "Python (环境名称)"
然后打开notebook
jupyter notebook
浏览器打开对应地址，新建python，就会有对应的环境提示了.jupy...
How to pass a user defined argument in scrapy spider
...www.example.com/{category}'] # py36
super().__init__(**kwargs) # python3
def parse(self, response)
self.log(self.domain) # system
Taken from the Scrapy doc: http://doc.scrapy.org/en/latest/topics/spiders.html#spider-arguments
Update 2013: Add second argument
Update 2015: ...
How can one pull the (private) data of one's own Android app?
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Python alternative for where openssl has not been compiled with zlib: dd if=data.ab bs=1 skip=24 | python -c "import zlib,sys;sys.stdout.write(zlib.decompress(sys.stdin.read()))" | tar -xvf - (from above source)
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How to convert Nonetype to int or string?
...erally a number, but could be None . I want to divide it by a number, but Python raises:
10 Answers
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How to check if all of the following items are in a list?
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Operators like <= in Python are generally not overriden to mean something significantly different than "less than or equal to". It's unusual for the standard library does this--it smells like legacy API to me.
Use the equivalent and more clearl...
matplotlib Legend Markers Only Once
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I like to change my matplotlib rc parameters dynamically in every python script. To achieve this goal I simply use somthing like that at the beginning of my python files.
from pylab import *
rcParams['legend.numpoints'] = 1
This will apply to all plots generated from my python file.
EDI...
Why does (1 in [1,0] == True) evaluate to False?
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Python actually applies comparison operator chaining here. The expression is translated to
(1 in [1, 0]) and ([1, 0] == True)
which is obviously False.
This also happens for expressions like
a < b < c
which tran...
Verify version of rabbitmq
..._properties.items():
print k, v
Save as checkVersion.py and run with python checkVersion.py dev.rabbitmq.com:
% python checkVersion.py dev.rabbitmq.com
information Licensed under the MPL. See http://www.rabbitmq.com/
product RabbitMQ
copyright Copyright (C) 2007-2011 VMware, Inc.
capabilitie...
How to trick an application into thinking its stdout is a terminal, not a pipe
... is amazing. I needed this for an extremely rare use case with an embedded Python library within an executable that is run within Wine. When I ran in a terminal it worked but when I ran the .desktop file I created it would always crash because Py_Initialize didn't see proper stdin/stderr.
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