为什么在Mac上使用Python虚拟环境时PyCharm会删除/usr/local/bin
在 Mac OS X El Capitan 10.11.1 上运行这个程序，使用的是 PyCharm 5（在 PyCharm 4.5 中运行得很好）。
import os
print("PATH:", os.environ.get("PATH"))
如果我把 PyCharm 的项目解释器设置为系统自带的 Python：/Library/Frameworks/Python.framework/Versions/3.4/bin/python3，我得到的输出是：
PATH: /Users/agautam/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
如果我把同样的程序的项目解释器设置为一个虚拟环境 /Users/agautam/work/my-awesome-py-project/venv/bin/python3，我得到的输出是：
PATH: /usr/bin:/bin:/usr/sbin:/sbin:/Users/agautam/work/my-awesome-py-project/venv/bin
问题：就是当我使用虚拟环境时，/usr/local/bin 这个路径消失了。
这是虚拟环境的创建方式：
import sys, platform, subprocess
from os.path import dirname, join
root_path = join(dirname(__file__), '../..')
venv_path = join(root_path, 'venv')
def build_virtual_environment():
print("Building virtual env from Python version", sys.version)
# Create a fresh virtual env
import venv
builder = venv.EnvBuilder(with_pip=True)
builder.create(venv_path)
# Install dependencies in new virtual env
run_in_venv('python', ['-m', 'pip', 'install', '--upgrade', 'pip']) # Upgrade pip itself
run_in_venv('pip', ['install', '-r', join(root_path, 'requirements.txt')])
def run_in_venv(cmd, args):
if platform.system() == 'Windows':
cmd += '.exe'
virtual_env_bin_path = r'venv/Scripts'
else:
virtual_env_bin_path = r'venv/bin'
subprocess.check_call([join(root_path, virtual_env_bin_path, cmd)] + args)
if __name__ == '__main__':
build_virtual_environment()
补充信息：从命令行运行 Python 解释器得到的结果完全一样（所以看起来是 PyCharm 的问题）：
$ /Library/Frameworks/Python.framework/Versions/3.4/bin/python3
Python 3.4.0 (v3.4.0:04f714765c13, Mar 15 2014, 23:02:41)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.environ.get("PATH")
'/Users/agautam/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin'
>>>
$ ./venv/bin/python3
Python 3.4.0 (v3.4.0:04f714765c13, Mar 15 2014, 23:02:41)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.environ.get("PATH")
'/Users/agautam/bin:/Library/Frameworks/Python.framework/Versions/3.4/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin'
>>>
任何帮助、信息或建议都将非常感谢。
相关文章：
- 暂无相关问题