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How to keep keys/values in same order as declared?
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Python3.7 now has dict ordered by default. mail.python.org/pipermail/python-dev/2017-December/151283.html
– sertsedat
Sep 4 '18 at 8:05
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No module named _sqlite3
...tar.gz and run ./configure,make && make install. After I recompile python3 it's still not working.
– AntiMoron
Jan 26 '16 at 2:27
2
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What does %s mean in a python format string?
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#Python2
name = raw_input("who are you? ")
print "hello %s" % (name,)
#Python3+
name = input("who are you? ")
print("hello %s" % (name,))
The %s token allows me to insert (and potentially format) a string. Notice that the %s token is replaced by whatever I pass to the string after the % symbo...
Validating with an XML schema in Python
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An example of a simple validator in Python3 using the popular library lxml
Installation lxml
pip install lxml
If you get an error like "Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?", try to do this first:
# Debian/Ubunt...
JSONDecodeError: Expecting value: line 1 column 1 (char 0)
...usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/__init__.py", line 348, in loads
return _default_decoder.decode(s)
File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/decoder.py", line 337, in decode
obj...
TypeError: 'str' does not support the buffer interface
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If you use Python3x then string is not the same type as for Python 2.x, you must cast it to bytes (encode it).
plaintext = input("Please enter the text you want to compress")
filename = input("Please enter the desired filename")
with g...
ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的消息发送和接收首先在机器中安装zmq库步骤如下：1）下载zeromq的源代码，Zer...本文内容摘要：1）安装zeromq、2）实例说明使用zmq进行网络间的消息发送和接收
首先在机器中安装zmq库
步骤如下：
1）下载zeromq的源代码，ZeroMQ...
How to read keyboard-input?
...s://docs.python.org/3.7/library/threading.html
To install PySerial: `sudo python3 -m pip install pyserial`
To run this program: `python3 this_filename.py`
"""
import threading
import queue
import time
def read_kbd_input(inputQueue):
print('Ready for keyboard input:')
while (True):
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How to prettyprint a JSON file?
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You can do this on the command line:
python3 -m json.tool some.json
(as already mentioned in the commentaries to the question, thanks to @Kai Petzke for the python3 suggestion).
Actually python is not my favourite tool as far as json processing on the command...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...结，特此写在这里，方便给同样刚入门的朋友指引。
一.下载安装
1.到http://curl.haxx.se/download.html上下载最新版本，由于公司的机器安装rpm有依赖关系，所以直接下载了source
2.编译。解压后进入curl的目录，直接执行 make all ...