Difference between revisions of "Python deployments"
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(pip is a pain in the penis) |
(brief updates for 2017) |
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| − | Hynek Schlawack | + | See Digital Ocean's quick guide to [https://www.digitalocean.com/community/tutorials/how-to-install-python-3-and-set-up-a-local-programming-environment-on-ubuntu-16-04 setting up a local Python programming environment], including [https://virtualenv.pypa.io/en/stable/ virtual environments], which is what I did for [https://github.com/Miserlou/SoundScrape SoundScrape] Btw, SoundScrape is a neat tool to download sound files from SoundCloud. |
| + | <ref> | ||
| + | <source lang="bash"> | ||
| + | cd | ||
| + | mkdir environments | ||
| + | cd environments/ | ||
| + | pyvenv my_env | ||
| + | source my_env/bin/activate | ||
| + | pip install --upgrade pip | ||
| + | pip install soundscrape | ||
| + | pip install soundscrape --upgrade | ||
| + | soundscrape https://soundcloud.com/pianoman_weddings/coldplay | ||
| + | </source> | ||
| + | </ref> | ||
| + | |||
| + | Hynek Schlawack (from 2013) | ||
* [https://hynek.me/talks/python-deployments/ Notes] | * [https://hynek.me/talks/python-deployments/ Notes] | ||
* [https://www.youtube.com/watch?v=RvbDCzroavY Video] | * [https://www.youtube.com/watch?v=RvbDCzroavY Video] | ||
== Python Packaging == | == Python Packaging == | ||
| − | + | In the old days (2015) there were still debates about how to package Python and install stuff. Now, it's settled. Use pip. Easy_install is dead. See the [https://docs.python.org/3/installing/index.html docs]. Also note that <code>venv</code> is the successor to <code>virtualenv</code> | |
| − | https:// | + | |
| + | == Basic PIP == | ||
| + | Do NOT (normally) use sudo with pip. Use a virtual environment: | ||
| + | <source lang="bash"> | ||
| + | $ virtualenv myenv | ||
| + | .. some output .. | ||
| + | $ source myenv/bin/activate | ||
| + | (myenv) $ pip install what-i-want | ||
| + | </source> | ||
| + | You only use sudo or elevated permissions when you want to install stuff for the global, system-wide Python installation. | ||
| − | + | It is best to use a virtual environment which isolates packages for you. That way you can play around without polluting the global python install. | |
| − | + | As a bonus, virtualenv does not need elevated permissions. | |
| − | |||
| − | * Installing a package is as simple as <code> | + | * Installing a package is as simple as <code>pip install foo</code> |
| − | * Upgrades are <code> | + | * Upgrades are <code>pip install --upgrade foo</code> |
| − | * <code> | + | * <code>pip uninstall foo</code> if you want to remove foo |
{{References}} | {{References}} | ||
Revision as of 08:52, 27 February 2017
See Digital Ocean's quick guide to setting up a local Python programming environment, including virtual environments, which is what I did for SoundScrape Btw, SoundScrape is a neat tool to download sound files from SoundCloud. [1]
Hynek Schlawack (from 2013)
Python Packaging[edit | edit source]
In the old days (2015) there were still debates about how to package Python and install stuff. Now, it's settled. Use pip. Easy_install is dead. See the docs. Also note that venv is the successor to virtualenv
Basic PIP[edit | edit source]
Do NOT (normally) use sudo with pip. Use a virtual environment:
$ virtualenv myenv
.. some output ..
$ source myenv/bin/activate
(myenv) $ pip install what-i-want
You only use sudo or elevated permissions when you want to install stuff for the global, system-wide Python installation.
It is best to use a virtual environment which isolates packages for you. That way you can play around without polluting the global python install.
As a bonus, virtualenv does not need elevated permissions.
- Installing a package is as simple as
pip install foo - Upgrades are
pip install --upgrade foo pip uninstall fooif you want to remove foo
References[edit source]
- ↑
cd mkdir environments cd environments/ pyvenv my_env source my_env/bin/activate pip install --upgrade pip pip install soundscrape pip install soundscrape --upgrade soundscrape https://soundcloud.com/pianoman_weddings/coldplay
