python-venv

问题 I found similar posts, mostly related to linux on venv having an issue with working. python 3.8 venv missing activate command However, I am confused on how to solve it on windows, and what is happening. I installed python3.8 from downloading it on pythons website. Then I follow the 3.8 documentation https://docs.python.org/3/library/venv.html which shows: python3 -m venv /path/to/new/virtual/environment I do this but then get the following error: Error: Command '['E:\\py_envs\\hf4\\Scripts\

问题 I compiled Python 3.8.1 under a user's home directory with configure --prefix=/home/a_user/python3.8 --enable-shared When I tried to use venv, I get: python3 -m venv test_env Error: Command '['/home/a_user/test_env/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1. test_env is created but incomplete: test_env/ ├── bin │ ├── python -> python3 │ └── python3 -> /home/a_user/python3.8/bin/python3 ├── include ├── lib │ └── python3.8 │ └── site

问题 I compiled Python 3.8.1 under a user's home directory with configure --prefix=/home/a_user/python3.8 --enable-shared When I tried to use venv, I get: python3 -m venv test_env Error: Command '['/home/a_user/test_env/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1. test_env is created but incomplete: test_env/ ├── bin │ ├── python -> python3 │ └── python3 -> /home/a_user/python3.8/bin/python3 ├── include ├── lib │ └── python3.8 │ └── site

问题 I am fairly new to creating Python applications. I have fooling around with some small tutorials and applications using PyCharm and have always created a new project using the Virtualenv environment, ending up with a "venv" folder under my project folder. I have not had any problems with this, but then again I have not done any large projects. However, I have been wanting to learn Flask want to try to create a new Flask project the proper way. I see in many tutorials that people are creating

问题 I have created a venv which I call PyRepo from a Miniconda installation locally. So far it has been working well as I was able to install third party packages from my venv using pip install <PackageName> no problems. However, I bumped into this one package blpapi that will install from conda (in the same machine): (base) C:\Programs\Miniconda3_64>pip install blpapi Looking in indexes: https://nexus-tp.xxx.net/repository/public-pypi/simple Requirement already satisfied: blpapi in c:\programs

问题 How can I delete a virtual environement created with python3 -m venv <name> Can I just remove the directory? This seems like a question googling should easily answer, but I only found answers for deleting environments created with virtualenv or pyvenv . 回答1: Yes, delete the directory. it's where executables for the venv and modules and libraries and entire other stuff for venvs is kept. 回答2: You should deactivate your environment first. Not sure if not deactivating will cause any problem, but

问题 Someone's just asked me how to list all the virtual environments created with venv . I could only think of searching for pyvenv.cfg files to find them. Something like: from pathlib import Path venv_list = [str(p.parent) for p in Path.home().rglob('pyvenv.cfg')] This could potentially include some false positives. Is there a better way to list all the virtual environment created with venv ? NB: The question is about venv specifically, NOT Anaconda, virtualenv, etc. 回答1: On Linux/macOS this

问题 There are a few Python dependencies that I would like to be available in every venv (virtual environment) that I create for each project. For example black, flake8 and pytest. Is that possible and if so, how to achieve that? I'd like to install these three once under my main Python installation, instead I have to reinstall all of them in every venv that I create when I start a new project. This is specially annoying when using VSCode which throws popups complaining about "Linter flake8 is not

问题 There are a few Python dependencies that I would like to be available in every venv (virtual environment) that I create for each project. For example black, flake8 and pytest. Is that possible and if so, how to achieve that? I'd like to install these three once under my main Python installation, instead I have to reinstall all of them in every venv that I create when I start a new project. This is specially annoying when using VSCode which throws popups complaining about "Linter flake8 is not

问题 I'm working on Linux Mint 17 and I'm trying to create a new virtualenv with Python3 like this: python3.6 -m venv env And this is the error that I get: Error: Command '['/home/ric/myprojs/django-example-channels/env/bin/python3.6', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1. I've googled this error message but haven't managed to find anything too informative. This is my pip version, in case it make any difference: pip --version pip 9.0.1 from /usr/local