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What is the official “preferred” way to install pip and virtualenv systemwide?
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If you can install the latest Python (2.7.9 and up) Pip is now bundled with it.
See: https://docs.python.org/2.7//installing/index.html
If not :
Update (from the release notes):
Beginning with v1.5.1, pip does not require setuptools prior to running ...
How to leave/exit/deactivate a Python virtualenv
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To activate a Python virtual environment:
$cd ~/python-venv/
$./bin/activate
To deactivate:
$deactivate
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How to import a module given the full path?
How can I load a Python module given its full path? Note that the file can be anywhere in the filesystem, as it is a configuration option.
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How to replace (or strip) an extension from a filename in Python?
Is there a built-in function in Python that would replace (or remove, whatever) the extension of a filename (if it has one) ?
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Convert SVG to PNG in Python
How do I convert an svg to png , in Python? I am storing the svg in an instance of StringIO . Should I use the pyCairo library? How do I write that code?
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How to read the RGB value of a given pixel in Python?
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It's probably best to use the Python Image Library to do this which I'm afraid is a separate download.
The easiest way to do what you want is via the load() method on the Image object which returns a pixel access object which you can manipulate like an a...
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...
Does Python's time.time() return the local or UTC timestamp?
Does time.time() in the Python time module return the system's time or the time in UTC?
8 Answers
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Convert datetime to Unix timestamp and convert it back in python
...s, or explicitly convert to and from UTC.
If you have, or can upgrade to, Python 3.3 or later, you can avoid all of these problems by just using the timestamp method instead of trying to figure out how to do it yourself. And even if you don't, you may want to consider borrowing its source code.
(A...
python setup.py uninstall
I have installed a python package with python setup.py install .
16 Answers
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