Replace entire file removes all items, comments, and options that exist.If the file already exists, a prompt appears for how to update it:
If you already have all the necessary packages installed in an environment, you can right-click that environment in Solution Explorer and select Generate requirements.txt to create the necessary file. For more information on creating a virtual environment, see Use virtual environments. If you want to install the dependencies in a virtual environment, create and activate that environment first, then use the Install from requirements.txt command. If you've loaded a project that contains requirements.txt and wish to install all the packages listed in that file, expand the Python Environments node in Solution Explorer, then right-click an environment node and select Install from requirements.txt: Technically, any filename may be used to track requirements (by using -r when installing a package), but Visual Studio provides specific support for requirements.txt: The most common command is pip freeze > requirements.txt, which records an environment's current package list into requirements.txt. The recommended approach is to use a requirements.txt file () that contains a list of commands for pip that installs the required versions of dependent packages. If you share a project with others, use a build system, or plan to copy the project to any other location where you need to restore an environment, you need to specify the external packages that the project requires. Applies to: Visual Studio Visual Studio for Mac Visual Studio Code
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