Создание и использование виртуальной среды
virtualenv — инструмент для создания изолированных сред Python. Программа создает папку, которая содержит все необходимые исполняемые файлы для использования пакетов, необходимых для проекта.
Создание новой виртуальной среды требуется только один раз для каждого проекта, для которого вы хотите изолировать зависимости:
python3 -m venv venv
Это создаст папку venv, содержащую оснастку сценариев и копию python самого двоичного файла. Название папки не имеет значения.
Чтобы активировать виртуальную среду, нужно запустить activate файл: source venv/bin/activate и далее мы можем свободно устанавливать любые зависимости, которые никак не скажутся на работе в будущих проектах.
#python#virtualenv
http://docs.python-guide.org/en/latest/
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https://github.com/pypa/virtualenv/issues/1059
Earlier today I installed python3.6 on my debian machine. Python3.6 was made available in buster distribution. When I try to create a virtualenv with python3.6.
python3.6 -m venv venv
gives the following error.
The #virtual_environment was not created successfully because ensurepip is not available. On Debian/Ubuntu systems, you need to install the python3-venv package using the following command.
apt-get install python3-venv
You may need to use sudo with that command. After installing the python3-venv
package, recreate your virtual environment.
Failing command: ['/home/float/test/t/bin/python3.6', '-Im', 'ensurepip', '--upgrade', '--default-pip']
I do have python3-venv (3.5.3-1) installed. Why do I get this error? If I run the command
py3 -Im ensurepip —upgrade —default-pip
it says
/usr/bin/python3.6: No module named ensurepip
I don't have trouble creating virtualenvs using the default python3 version (3.5.3).
Also , I noticed that I can create a virtualenv as follows:
#virtualenv -p python3.6 #venv
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