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https://github.com/ax-va/python-example-collection
https://github.com/ax-va/python-example-collection
Last synced: about 18 hours ago
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- Host: GitHub
- URL: https://github.com/ax-va/python-example-collection
- Owner: ax-va
- Created: 2023-09-20T16:11:01.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2024-10-29T19:40:35.000Z (21 days ago)
- Last Synced: 2024-10-29T21:40:31.273Z (21 days ago)
- Size: 15.2 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Python-Example-Collection
## Install using `pip`
As of Python 3.3, the build-in `venv` package created a virtual environment
`python -m venv env_dir_name [--prompt my_proj]`.
The `--prompt` parameter is optional. If it is not supplied, the prompt will match the directory name.
As of Python 3.9, providing `--prompt .` will tell `venv` to use the parent directory as the prompt.
See also: https://docs.python.org/3/library/venv.html
Create a virtual environment, activate it on POSIX systems, and install a package
```unix
$ python3 -m venv venv_name
$ source venv_name/bin/activate
(venv_name) ...$ pip install pytest
```
or using `virtualenv`
```unix
$ python3 -m pip install virtualenv
$ python3 -m virtualenv venv_name
$ source venv_name/bin/activate
(venv_name) ...$ pip install pytest
```
Deactivate the venv
```unix
(venv_name) ...$ deactivate
```
Create a virtual environment, activate it on Windows systems, and install `pytest`
```windows
>python -m venv venv_name
>venv_name\Scripts\activate.bat
(venv_name) ...> pip install pytest
```
Activate in PowerShell
```windows
>venv_name\Scripts\Activate.ps1
```
## Install a local package
Install a local pacḱage located in the current directory
```unix
$ pip install ./my_package
```
## Install packages in editable mode
Editable mode refers to a way of installing a Python package such that any changes
you make to the source code are immediately reflected without needing to reinstall the package.
Install in editable mode from the current directory
```unix
(venv_editable) ...$ pip install -e .
```
Install in editable mode with optional dependencies for testing
```unix
(venv_editable) ...$ pip install -e "./cards_proj_failed/[test]"
```
`[test]` in the `-e` parameters refers to optional dependencies for testing given in `pyproject.toml`.
## Other installation capabilities
Install from GitHub
```unix
$ pip install git+https://github.com/okken/pytest-skip-slow
```
Specify a version to install
```unix
$ pip install git+https://github.com/pytest-dev/[email protected]
```
Specify a branch to install
```unix
$ pip install git+https://github.com/pytest-dev/pytest-cov@master
```
Install from `.whl`
```unix
$ pip install --no-index --find-links=
```
Download a bunch of various versions into a local cache of packages,
and then point `pip` there instead of PyPI to install them into virtual environments later.
This is great for situations like running `tox` or CI test suites without needing to grab packages from PyPI.
```unix
(venv) ...$ mkdir ~/.pipcache
(venv) ...$ pip download -d ~/pipcache pytest
...
(venv) ...$ pip install --no-index --find-links=~/pipcache pytest
```
See also: https://pip.pypa.io/en/stable/
## Publish packages to PyPI
https://packaging.python.org/en/latest/tutorials/packaging-projects/#uploading-the-distribution-archives
https://flit.pypa.io/en/latest/upload.html#controlling-package-uploads
## johnnydep
```unix
$ johnnydep pandas==2.2.0 --verbose 0
```