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Library of Wonderful Things

Project Description

A library of wonderful Python things!

Motivation

This library is born from my version of the utils library everyone makes. Only, instead of being utilities that are specific to the task, these utilities are for programming in general: They assume logs should be structured, all data should be JSONizable, and OO is preferred, and more.

Python is a Little Crufty

Python is awesome now, but it was originally a procedural language invented before pure functional semantics, before OO, and even before the discovery of vowels. As a consequence there are many procedures that alter their own parameters, or have disemvoweled names. This library puts a facade over these relics of the past and uses convention to name methods.

Installing pyLibrary

Python packages are easy to install, assuming you have Python (see below).

pip install pyLibrary

Installing for Development

  • Download from Github:

    git clone https://github.com/klahnakoski/pyLibrary.git
    
  • Install requirements:

    python setup.py develop
    

Windows 7 Install Instructions for Python

Updated November 2014, for Python 2.7.8

Python was really made for Linux, and installation will be easier there. Technically, Python works on Windows too, but there are a few gotchas you can avoid by following these instructions.

  • Download Python 2.7

    • 32bit ONLY!!! Many native libs are 32 bit
    • Varsion 2.7.8 or higher (includes pip, so install is easier)
  • Install Python at c:\Python27 (The space in the “Program Files” may screw up installs of native libs)

  • Add to you path: c:\Python27;c:\Python27\scripts;

  • Download https://bootstrap.pypa.io/get-pip.py

    CALL python get-pip.py
    CALL pip install virtualenv
    
  • Many “Python Powered” native installs require a pointer to the python installation, but they have no idea where to look in 64bit windows. You must alter the registry (http://stackoverflow.com/questions/3652625/installing-setuptools-on-64-bit-windows):

    SET HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\InstallPath = "C:\Python27"
    

Using virtualenv

virtualenv allows you to have multiple python projects on the same machine, even if they use different versions of the same libraries. virtualenv does this by making a copy of the main python directory and using it to hold the specific versions required.

  • New environment: virtualenv <name_of_dir>
  • Activate environment: <name_of_dir>\scripts\activate
  • Exit environment: deactivate

If you have more than one project on your dev box I suggest you do all your work inside a virtual environment.

PyPy and Virtual Environments

virtualenv can be used with PyPy, but it is a bit more involved. The paths must be explict, and some copying is required.

New environment:

The first call to virtualenv will make the directory, to which you copy the PyPy core libraries, and the second call finishes the install.

c:\PyPy27\bin\virtualenv <name_of_dir>
copy c:\PyPy27\bin\lib_pypy <name_of_dir>
copy c:\PyPy27\bin\lib_python <name_of_dir>
c:\PyPy27\bin\virtualenv <name_of_dir>

Activate environment:

With CPython virtualenv places it’s executables in Scripts. The PyPy version uses bin

<name_of_dir>\bin\activate

Using PIP in PyPy:

PyPy does not share any libraries with CPython. You must install the PyPy libraries using

C:\pypy\bin\pip.exe

The pip found in your %PATH% probably points to C:\python27\Scripts\pip.exe.

Using PIP in PyPy virtualenv:

Do NOT use the <name_of_dir>\Scripts directory: It installs to your main PyPy installation. Pip install is done using the bin directory:

<name_of_dir>\bin\pip.exe

Exit environment:

Deactivation is like normal

deactivate

CPython Binaries and Virtual Environments

If you plan to use any binary packages, virtualenv will not work directly. Instead, install the binary (32 bit only!!) to the main python installation. Then copy any newly installed files/directories from C:\Python27\Lib\site-packages to <name_of_dir>\Lib\site-packages.

Binaries and PyPy

This strategy for installing binaries into Virtual Environments is almost identical to installing binaries into your PyPy environment: Install Numpy and Scipy to your CPython installation using a windows installer (which has pre-compiled binaries), and then copy the C:\Python27\Lib\site-packages\<package> to c:\PyPy\site-packages\; note lack of Lib subdirectory.

Release history Release notifications

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2.1.18074

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Filename, size & hash SHA256 hash help File type Python version Upload date
pyLibrary-2.1.18074.tar.gz (440.3 kB) Copy SHA256 hash SHA256 Source None Mar 15, 2018

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