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Boost程序库完全开发指南——深入C++“准”标准库高清PDF版 - 文档下载 - ...
Boost程序库完全开发指南——深入C++“准”标准库高清PDF版C++ Boost 标准库Boost是一个功能强大、构造精巧、跨平台、开源并且完全免费的C++程序库，有着C++‘准’标准库的美誉。它由C++标准委员会部分成员...Boost是一个功能...
How do I read image data from a URL in Python?
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In Python3 the StringIO and cStringIO modules are gone.
In Python3 you should use:
from PIL import Image
import requests
from io import BytesIO
response = requests.get(url)
img = Image.open(BytesIO(response.content))
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How to pip or easy_install tkinter on Windows
...g. You'll end up with a fresh install of ActivePython, located in, e.g. C:\python32. From a Windows command prompt, or the Start Menu's "Run..." command, you should then be able to run a Python shell via:
% C:\python32\python
This should give you the Python command prompt. From the prompt, enter ...
Access an arbitrary element in a dictionary in Python
...ethods will return list with the same ordering. This is not supported with Python3.
in Python 3:
list(my_dict.keys())[0] -> key of "first" element
list(my_dict.values())[0] -> value of "first" element
list(my_dict.items())[0] -> (key, value) tuple of "first" element
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Let JSON object accept bytes or let urlopen output strings
...Implicit bytes <-> string conversions are a source of many bugs, and Python3 is very helpful in pointing out the pitfalls. But I agree the library has room for improvement in this area.
– EvertW
Jul 25 '17 at 14:24
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)
...ng to ensure the encoding type is 'utf-8'
Note: this method works fine in Python3, I did not try it in Python2.7.
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为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...cmd 命令行输入ant命令出现以上结果证明配置成功。
源码下载https://github.com/mit-cml/appinventor-sources国内下载非常非常缓慢，这个项目比较大，也许2天都下载不完，不过没关系，我们早已提供已下载好的工程源码，关注页面顶部公...
C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
C++并发编程（中文版）C++并发编程（中文版）作为对《C++ Concurrency in Action》的中文翻译。本书是基于C++11新标准的并发和多线程编程深度指南。从std::thr 作为对《C++ Concurrency in Action》的中文翻译。
本书是基于C++11新标准的并...
APT command line interface-like yes/no input?
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Just a remember: raw_input() is called input() in Python3
– nachouve
Jan 28 '16 at 9:06
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How to check if variable is string with python 2 and 3 compatibility
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Nice, but why? It would be nice if Python3 would be backward-compatible here. Above solutions works. Would be even better, if there would be no need for it.
– guettli
Mar 4 '19 at 19:37
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