在mac中同时存在python2.4和3.7的时候，安装django，使用pip安装
- 直接升级
pip install django
Collecting django
Downloading https://files.pythonhosted.org/packages/bf/e0/e659df5b5b82299fffd8b3df2910c99351b9308b8f45f5702cc4cdf946e9/Django-1.11.14-py2.py3-none-any.whl (7.0MB)
100% |████████████████████████████████| 7.0MB 89kB/s
Requirement already satisfied: pytz in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from django)
Installing collected packages: django
Exception: Traceback (most recent call last): File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/basecommand.py", line 215, in main status = self.run(options, args) File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/commands/install.py", line 342, in run prefix=options.prefix_path, File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_set.py", line 784, in install **kwargs File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_install.py", line 851, in install self.move_wheel_files(self.source_dir, root=root, prefix=prefix) File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_install.py", line 1064, in move_wheel_files isolated=self.isolated, File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/wheel.py", line 377, in move_wheel_files clobber(source, dest, False, fixer=fixer, filter=filter) File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/wheel.py", line 323, in clobber shutil.copyfile(srcfile, destfile) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 83, in copyfile with open(dst, 'wb') as fdst: IOError: [Errno 13] Permission denied: '/usr/local/bin/django-admin.py'
You are using pip version 9.0.3, however version 10.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
- 抛出异常，按照提示升级pip
pip install --upgrade pip
Collecting pip
Downloading https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl (1.3MB)
100% |████████████████████████████████| 1.3MB 96kB/s
Installing collected packages: pip
Found existing installation: pip 9.0.3
Uninstalling pip-9.0.3:
Exception: Traceback (most recent call last): File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/basecommand.py", line 215, in main status = self.run(options, args) File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/commands/install.py", line 342, in run prefix=options.prefix_path, File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_set.py", line 778, in install requirement.uninstall(auto_confirm=True) File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_install.py", line 754, in uninstall paths_to_remove.remove(auto_confirm) File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_uninstall.py", line 115, in remove renames(path, new_path) File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/utils/__init__.py", line 267, in renames shutil.move(old, new) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 300, in move rmtree(src) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 247, in rmtree rmtree(fullname, ignore_errors, onerror) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 252, in rmtree onerror(os.remove, fullname, sys.exc_info()) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 250, in rmtree os.remove(fullname) OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/EGG-INFO/dependency_links.txt'
You are using pip version 9.0.3, however version 10.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
- 依然报错，使用sudo解决
sudo pip install --upgrade pip
Password:
The directory '/Users/ypn-mac-02/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/Users/ypn-mac-02/Library/Caches/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting pip
Downloading https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl (1.3MB)
100% |████████████████████████████████| 1.3MB 420kB/s
Installing collected packages: pip
Found existing installation: pip 9.0.3
Uninstalling pip-9.0.3:
Successfully uninstalled pip-9.0.3
Successfully installed pip-10.0.1
- 安装django
pip install django
Requirement already satisfied: django in /Library/Python/2.7/site-packages (1.11.14)
Requirement already satisfied: pytz in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from django) (2013.7)
matplotlib 1.3.1 requires nose, which is not installed. matplotlib 1.3.1 requires tornado, which is not installed.
发现安装到了python2.7中
先查看pip的版本
pip -V
pip 10.0.1 from /Library/Python/2.7/site-packages/pip (python 2.7)
- 查找资料，发现python3自带pip，无需另外安装
- 尝试查看pip3版本，发现存在pip3
pip3 -V
pip 10.0.1 from /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip (python 3.7)
附注：在以下目录中可以看见各种pip的版本
/usr/local/bin
- 用pip3安装django
pip3 install django
Collecting django
Downloading https://files.pythonhosted.org/packages/ab/15/cfde97943f0db45e4f999c60b696fbb4df59e82bbccc686770f4e44c9094/Django-2.0.7-py3-none-any.whl (7.1MB)
100% |████████████████████████████████| 7.1MB 1.7MB/s
Collecting pytz (from django)
Downloading https://files.pythonhosted.org/packages/30/4e/27c34b62430286c6d59177a0842ed90dc789ce5d1ed740887653b898779a/pytz-2018.5-py2.py3-none-any.whl (510kB)
100% |████████████████████████████████| 512kB 6.8MB/s
Installing collected packages: pytz, django
Successfully installed django-2.0.7 pytz-2018.5
