使用 python 3 安装 virtualenv 时出错

Question

ive updated to python3 and downloaded virtualenv using: sudo /usr/bin/easy_install virtualenv

when i go to start the virtualenv i got the following error message: virtualenv project1 Traceback (most recent call last): File "/usr/local/bin/virtualenv", line 6, in <module> from pkg_resources import load_entry_point File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3241, in <module> @_call_aside File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3225, in _call_aside f(*args, **kwargs) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3254, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 585, in _build_master return cls._build_from_requirements(__requires__) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 598, in _build_from_requirements dists = ws.resolve(reqs, Environment()) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 786, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'zipp>=0.4' distribution was not found and is required by importlib-resources virtualenv project1 Traceback (most recent call last): File "/usr/local/bin/virtualenv", line 6, in <module> from pkg_resources import load_entry_point File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3241, in <module> @_call_aside File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3225, in _call_aside f(*args, **kwargs) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3254, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 585, in _build_master return cls._build_from_requirements(__requires__) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 598, in _build_from_requirements dists = ws.resolve(reqs, Environment()) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 786, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'zipp>=0.4' distribution was not found and is required by importlib-resources

i looked around and realised the that 'zipp' had not been installed so i installed that also. when i went to run the virtualenv again i got the same error message again as above. and for some reason it keeps referencing python 2.7 even though ive upgraded to python3.

Answer 1

please try this..

you just follow Exactly the bellow Items:

Open your Command Prompt AS ADMINISTRATOR -> right click on CMD and RUN AS ADMINISTRATOR

go to which Folder to you want to create your VirtualENV: For example: > Cd C:\Users...\Documents\python\src

type it: PIP install Virtualenv make sure your internet connection is Ok

4.type: python -m venv env

and then you can create your project inside this env folder..

all Comment code should be write in Command Prompt AS Administrator

Answer 2

i ended up using the built in python 3 venv package. it works just as well and it was straight forward and simple. thank you for all the help

start the virtual environment: python3 -m venv project1 activate the virtual environment: source project1/bin/activate deactivate the virtual environment: deactivate

Answer 3

If you're using Python 3.3 or later, you can use the built-in venv [ https://docs.python.org/3/library/venv.html] module. This will reduce the number of dependencies, making installation and troubleshooting a bit easier.

To double-check that you are invoking the correct Python interpreter, run python3 -V or python -V (depending on how it's aliased).

Answer 4

Just try out.

virtualenv venv

It should create a venv directory in same directory if python 3.x is being used.