Pip From REPL
======
Run pip to install packages from the Python interactive shell aka REPL.
If you are leading a programming workshop and want to avoid headaches of running pip from students' machines (with all their possible environment configurations), pipfromrepl provides a single set of instructions to quickly get packages correctly installed.
The benefit of pipfromrepl is that the user doesn't need to know how to navigate the command-line or have their PATH environment variables set up. If multiple versions of Python are installed, pipfromrepl uses the pip module associated with the currently running interactive shell. The goal of pipfromrepl is to reduce the number of steps that students and beginners need to take to get Python packages installed on their computer.
Pipfromrepl is meant to assist students and instructors. It's probably a good idea to not rely on it in production environments.
Installation
------------
To install pipfromrepl from the REPL, copy and paste the following into the REPL:
import subprocess, sys; subprocess.run([sys.executable, '-m', 'pip', 'install', 'pipfromrepl'])
Pipfromrepl works on Python 2.7 and Python 3.4+. Linux users may need to install pip separately by running `sudo apt-get install python3-pip` from a Terminal.
Quickstart Guide
----------------
After installing pipfromrepl, run `import pipfromrepl`:
>>> import pipfromrepl
Call `pipfromrepl.install()` to install a package from PyPI:
>>> pipfromrepl.install('pymsgbox')
Collecting pymsgbox
Using cached PyMsgBox-1.0.9-py3-none-any.whl
Installing collected packages: pymsgbox
Successfully installed pymsgbox-1.0.9
Call `pipfromrepl.list()` to list the installed packages:
>>> pipfromrepl.list()
Package Version Editable project location
----------- ------- -------------------------
pip 22.3.1
pipfromrepl 0.1.0 C:\github\pipfromrepl
PyMsgBox 1.0.9
setuptools 65.5.1
wheel 0.37.1
Call `pipfromrepl.uninstall()` to uninstall a package:
>>> pipfromrepl.uninstall('pymsgbox')
Found existing installation: PyMsgBox 1.0.9
Uninstalling PyMsgBox-1.0.9:
Would remove:
c:\users\al\.virtualenvs\pipfromrepl-fxbqt5ki\lib\site-packages\pymsgbox-1.0.9.dist-info\*
c:\users\al\.virtualenvs\pipfromrepl-fxbqt5ki\lib\site-packages\pymsgbox\*
Proceed (Y/n)? Successfully uninstalled PyMsgBox-1.0.9
Additional Details
----------------
The `uninstall()` function has a `confirm` keyword argument you can set to `True` to force the user to manually enter Y to proceed.
The `user_install()` function passes the `'--user'` argument to pip.
You can install a specific version just like pip: `pipfromrepl.install('pymsgbox==1.0.9')`
You can pass pip commands to pip directly with the `pip()` functions:
>>> import pipfromrepl
>>> pipfromrepl.pip('install pymsgbox')
Collecting pymsgbox
Using cached PyMsgBox-1.0.9-py3-none-any.whl
Installing collected packages: pymsgbox
Successfully installed pymsgbox-1.0.9
>>> pipfromrepl.pip('list')
Package Version Editable project location
---------------- ---------- -------------------------
certifi 2022.9.24
distlib 0.3.6
filelock 3.8.0
pip 22.3.1
pipenv 2022.11.11
pipfromrepl 0.1.0 C:\github\pipfromrepl
platformdirs 2.5.4
PyMsgBox 1.0.9
setuptools 65.5.1
virtualenv 20.16.7
virtualenv-clone 0.5.7
wheel 0.37.1
>>> pipfromrepl.pip('uninstall pymsgbox')
Found existing installation: PyMsgBox 1.0.9
Uninstalling PyMsgBox-1.0.9:
Would remove:
c:\users\al\.virtualenvs\pipfromrepl-fxbqt5ki\lib\site-packages\pymsgbox-1.0.9.dist-info\*
c:\users\al\.virtualenvs\pipfromrepl-fxbqt5ki\lib\site-packages\pymsgbox\*
Proceed (Y/n)? y
Successfully uninstalled PyMsgBox-1.0.9
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