安装我的Python 3软件包时出现问题

Question

最近，我们组织了一个小项目来熟悉Python。 在使项目可分发的过程中，我创建了以下setup.py ：

# -*- coding: utf-8 -*-


import re
from setuptools import setup


setup(
    name = 'bfi',
    packages = ['bfi'],
    entry_points = {
        'console_scripts' : ['bfi = bfi.bfi:main']
    },
    version = '1.0',
    description = 'Brainf*ck Interpreter w/Shell-Mode',
    author = 'Kyle Martinez',
    install_requires = ['getch', 'overloading']
)

然后，我尝试从命令行安装软件包，如下所示：

python3 setup.py install

哪个似乎有效！ 运行命令将为我提供以下输出：

running install
running bdist_egg
running egg_info
writing requirements to bfi.egg-info/requires.txt
writing top-level names to bfi.egg-info/top_level.txt
writing bfi.egg-info/PKG-INFO
writing dependency_links to bfi.egg-info/dependency_links.txt
writing entry points to bfi.egg-info/entry_points.txt
reading manifest file 'bfi.egg-info/SOURCES.txt'
writing manifest file 'bfi.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.6-intel/egg
running install_lib
running build_py
creating build/bdist.macosx-10.6-intel/egg
creating build/bdist.macosx-10.6-intel/egg/bfi
copying build/lib/bfi/__init__.py -> build/bdist.macosx-10.6-intel/egg/bfi
copying build/lib/bfi/__main__.py -> build/bdist.macosx-10.6-intel/egg/bfi
copying build/lib/bfi/bfi.py -> build/bdist.macosx-10.6-intel/egg/bfi
copying build/lib/bfi/bficore.py -> build/bdist.macosx-10.6-intel/egg/bfi
byte-compiling build/bdist.macosx-10.6-intel/egg/bfi/__init__.py to __init__.cpython-34.pyc
byte-compiling build/bdist.macosx-10.6-intel/egg/bfi/__main__.py to __main__.cpython-34.pyc
byte-compiling build/bdist.macosx-10.6-intel/egg/bfi/bfi.py to bfi.cpython-34.pyc
byte-compiling build/bdist.macosx-10.6-intel/egg/bfi/bficore.py to bficore.cpython-34.pyc
creating build/bdist.macosx-10.6-intel/egg/EGG-INFO
copying bfi.egg-info/PKG-INFO -> build/bdist.macosx-10.6-intel/egg/EGG-INFO
copying bfi.egg-info/SOURCES.txt -> build/bdist.macosx-10.6-intel/egg/EGG-INFO
copying bfi.egg-info/dependency_links.txt -> build/bdist.macosx-10.6-intel/egg/EGG-INFO
copying bfi.egg-info/entry_points.txt -> build/bdist.macosx-10.6-intel/egg/EGG-INFO
copying bfi.egg-info/requires.txt -> build/bdist.macosx-10.6-intel/egg/EGG-INFO
copying bfi.egg-info/top_level.txt -> build/bdist.macosx-10.6-intel/egg/EGG-INFO
zip_safe flag not set; analyzing archive contents...
creating 'dist/bfi-1.0-py3.4.egg' and adding 'build/bdist.macosx-10.6-intel/egg' to it
removing 'build/bdist.macosx-10.6-intel/egg' (and everything under it)
Processing bfi-1.0-py3.4.egg
Removing /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/bfi-1.0-py3.4.egg
Copying bfi-1.0-py3.4.egg to /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages
bfi 1.0 is already the active version in easy-install.pth
Installing bfi script to /Library/Frameworks/Python.framework/Versions/3.4/bin
Installed /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/bfi-1.0-py3.4.egg 
Processing dependencies for bfi==1.0
Searching for overloading==0.5.0
Best match: overloading 0.5.0
Adding overloading 0.5.0 to easy-install.pth file

Using /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages
Searching for getch==1.0
Best match: getch 1.0
Adding getch 1.0 to easy-install.pth file

Using /Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages
Finished processing dependencies for bfi==1.0 

但是，当我转到命令行并运行bfi ，出现了一个很大的'ol SyntaxError：

Traceback (most recent call last):
  File "/usr/local/bin/bfi", line 9, in <module>
    load_entry_point('bfi==1.0', 'console_scripts', 'bfi')()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", li
ne 357, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", li
ne 2394, in load_entry_point
    return ep.load()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", li
ne 2108, in load
    entry = __import__(self.module_name, globals(),globals(), ['__name__'])
  File "/Library/Python/2.7/site-packages/bfi-1.0-py2.7.egg/bfi/bfi.py", line 42
    print('➲ ', end='')
                     ^
SyntaxError: invalid syntax 

我有点陌生，因此，我将不胜感激！ 我该如何解决？

注意：您可能已经推断出，我的Macbook安装了多个版本的Python。

Answer 1

看起来您还使用python2.7安装了'byi'软件包，可能使用了python setup.py install

当您通过byi运行控制台脚本时，shim脚本可能指向python 2.7。 您可以通过查看生成的shim脚本的第一行来确认： head -1 /usr/local/bin/byi

您可以尝试删除脚本/usr/local/bin/byi并使用python3重新运行安装程序。 那应该在源代码中生成一个带有python3的新填充脚本。 您还可以通过添加其他选项来控制要使用的python： options = { 'build_scripts': { 'executable': '/usr/bin/env python3', }, }在setup.py中

此外，您的软件包似乎与python 2.7不兼容。 错误的行将在python 2.7上失败，因为较旧的版本除了元组而不是函数args之外： print '➲ ',而不是print('➲ ', end='') 。

如果确实需要python 2.x支持，则可以安装六个模块