如何让Python 2.7包(Spynner)与Python 3协同工作？

Question

Spynner文档说它支持Python >=26，但在安装过程中我得到了以下错误：

(spynner) spynner$ pip3 install spynner
Requirement already satisfied (use --upgrade to upgrade): spynner in /Users/spynner/Envs/spynner/lib/python3.4/site-packages/spynner-2.19-py3.4.egg
Collecting six (from spynner)
  Using cached six-1.10.0-py2.py3-none-any.whl
Collecting beautifulsoup4 (from spynner)
  Using cached beautifulsoup4-4.5.1-py3-none-any.whl
Collecting unittest2 (from spynner)
  Using cached unittest2-1.1.0-py2.py3-none-any.whl
Collecting pyquery (from spynner)
  Using cached pyquery-1.2.13.tar.gz
Collecting autopy (from spynner)
  Using cached autopy-0.51.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/zl/dpw1svbx2qjbl549qvzq2r640000gn/T/pip-build-3rvrid_c/autopy/setup.py", line 50
        print 'Updating __init__.py'
                               ^
    SyntaxError: Missing parentheses in call to 'print'

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/zl/dpw1svbx2qjbl549qvzq2r640000gn/T/pip-build-3rvrid_c/autopy/

所以看起来其中一个包是为2.7编写的。

有没有一些Python技巧可以让它在Python3中工作，或者我必须手动更正有问题的代码？

干杯

Answer 1

您需要更正有问题的代码。有一些自动化的工具可以帮助您做到这一点，例如2to3

Python2to3是一个

程序，它读取Python2.x源代码并应用一系列修复程序将其转换为有效的Python3.x代码。标准库包含一组丰富的修复程序，它们可以处理几乎所有的代码。然而，2to3支持库lib2to3是一个灵活和通用的库，因此可以为2to3编写自己的修复器。lib2to3还可以适应需要自动编辑Python代码的自定义应用程序。