CODEWITHSUNDEEP
python-3.xinstallationpip
user15294375
user15294375

Reputation:

does pip reinstall libraries everytime when creating a virtual environment?

I know it might sound stupid, but I genuinely tried my best to understand if pip installs packages from the internet every single time or does it just clone and use the already globally installed packages when I am creating a venv?

What exactly is the difference between pip install and pip download?

What does it mean by

Collecting package <package_name>...

Using cached <package_name>...

and

Downloading <package_name>

Can someone help me out...

Upvotes: 0

Views: 263

Answers (1)

Dhruv Jadhav
Dhruv Jadhav

Reputation: 282

pip download replaces the --download option to pip install, which is now deprecated and was removed in pip 10.

pip download does the same resolution and downloading as pip install, but instead of installing the dependencies, it collects the downloaded distributions into the directory provided (defaulting to the current directory). This directory can later be passed as the value to pip install --find-links to facilitate offline or locked down package installation.

The idea behind the pip cache is simple, when you install a Python package using pip for the first time, it gets saved on the cache. If you try to download/install the same version of the package on a second time, pip will just use the local cached copy instead of retrieving it from the remote register .

If you plan to use the same version of the package in another project then using cached packages is much faster.

But if pip installs the cached version of the package and you want to upgrade to the newest version of the package then you can simply upgrade by: pip install <package_name> --upgrade

Upvotes: 0

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