4 ms·

How do I upgrade all packages with Pip? Why are there multiple ways to install packages, e.g. eggs, setup.py, pip, easy_install (just off the top of my head)? H

How do I upgrade all packages with Pip? Why are there multiple ways to install packages, e.g. eggs, setup.py, pip, easy_install (just off the top of my head)? How does pip manage to break dependencies? Why does no standard way to manage packages come pre-installed? How do I pin packages at a version? Why is there a need for virtual-env to exist as a separate project? Compare this to how languages like Go, Rust, Ruby, and Julia handle packages and dependencies and Python is an absolute disaster. Even if there are answers to the above questions, as a fairly advanced user I have no idea what they are, and I have done plenty of research.

rhizome31 11y ago
I'll try to answer your questions. > How do I upgrade all packages with Pip? I don't know how to upgrade all packages, but I that's not something I want to do because I want to control which packages I upgrade. To upgrade a single package you can do pip install --upgrade packagename > Why are there multiple ways to install packages, e.g. eggs, setup.py, pip, easy_install (just off the top of my head)? Egg is a package format. setup.py is a build script. pip and easy_install are package management tools. You use setup.py to build eggs that you install with easy_install or pip. You can also install directly with setup.py, but that's not something you'd generally do. pip is a better, more recent installation tool than easy_install. > How does pip manage to break dependencies? I'm not sure what you mean here. > Why does no standard way to manage packages come pre-installed? I guess the answer is because no one had bothered solving this issue until recently. Starting with Python 3.4, pip is included by default. See https://docs.python.org/3/installing/index.html https://docs.python.org/3/installing/index.html > How do I pin packages at a version? You list your packages with their version numbers in a requirement file that you can pass as an argument to pip. You can use pip freeze to get a list of currently installed packages with their pinned version numbers that you can include into your requirements file. See http://pip.readthedocs.org/en/latest/user_guide.html#requirements-files http://pip.readthedocs.org/en/latest/user_guide.html#require... > Why is there a need for virtual-env to exist as a separate project? No need for that, it just hasn't been integrated in the standard distribution until fairly recently. Starting from Python 3.3, venv is included: https://docs.python.org/3/library/venv.html https://docs.python.org/3/library/venv.html > Compare this to how languages like Go, Rust, Ruby, and Julia handle packages and dependencies and Python is an absolute disaster. Absolute disaster is a bit strong, but it's admittedly not as good as the other languages you mentioned. I think every Python developer who knows other languages will agree. That doesn't stop us from getting our job done though and the situation is improving.

rhizome31 11y ago

I'll try to answer your questions. > How do I upgrade all packages with Pip? I don't know how to upgrade all packages, but I that's not something I want to do because I want to control which packages I upgrade. To upgrade a single package you can do pip install --upgrade packagename > Why are there multiple ways to install packages, e.g. eggs, setup.py, pip, easy_install (just off the top of my head)? Egg is a package format. setup.py is a build script. pip and easy_install are package management tools. You use setup.py to build eggs that you install with easy_install or pip. You can also install directly with setup.py, but that's not something you'd generally do. pip is a better, more recent installation tool than easy_install. > How does pip manage to break dependencies? I'm not sure what you mean here. > Why does no standard way to manage packages come pre-installed? I guess the answer is because no one had bothered solving this issue until recently. Starting with Python 3.4, pip is included by default. See https://docs.python.org/3/installing/index.html https://docs.python.org/3/installing/index.html > How do I pin packages at a version? You list your packages with their version numbers in a requirement file that you can pass as an argument to pip. You can use pip freeze to get a list of currently installed packages with their pinned version numbers that you can include into your requirements file. See http://pip.readthedocs.org/en/latest/user_guide.html#requirements-files http://pip.readthedocs.org/en/latest/user_guide.html#require... > Why is there a need for virtual-env to exist as a separate project? No need for that, it just hasn't been integrated in the standard distribution until fairly recently. Starting from Python 3.3, venv is included: https://docs.python.org/3/library/venv.html https://docs.python.org/3/library/venv.html > Compare this to how languages like Go, Rust, Ruby, and Julia handle packages and dependencies and Python is an absolute disaster. Absolute disaster is a bit strong, but it's admittedly not as good as the other languages you mentioned. I think every Python developer who knows other languages will agree. That doesn't stop us from getting our job done though and the situation is improving.