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.gitignore vendored Normal file
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# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class
# C extensions
*.so
# Distribution / packaging
.Python
build/
develop-eggs/
dist/
downloads/
eggs/
.eggs/
lib/
lib64/
parts/
sdist/
var/
wheels/
share/python-wheels/
*.egg-info/
.installed.cfg
*.egg
MANIFEST
# PyInstaller
# Usually these files are written by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
htmlcov/
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.coverage.*
.cache
nosetests.xml
coverage.xml
*.cover
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cover/
# Translations
*.mo
*.pot
# Django stuff:
*.log
local_settings.py
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db.sqlite3-journal
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.scrapy
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# PyBuilder
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# Jupyter Notebook
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# IPython
profile_default/
ipython_config.py
# pyenv
# For a library or package, you might want to ignore these files since the code is
# intended to run in multiple environments; otherwise, check them in:
# .python-version
# pipenv
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# However, in case of collaboration, if having platform-specific dependencies or dependencies
# having no cross-platform support, pipenv may install dependencies that don't work, or not
# install all needed dependencies.
#Pipfile.lock
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# This is especially recommended for binary packages to ensure reproducibility, and is more
# commonly ignored for libraries.
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#poetry.lock
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#pdm.lock
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# in version control.
# https://pdm.fming.dev/#use-with-ide
.pdm.toml
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__pypackages__/
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*.sage.py
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LICENSE Normal file
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DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.

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README.md Normal file
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A really simple library for accessing dictionary items using paths. Meant to make working with configuration files easier.
## quick-n-dirty documentalation
The class you want is `confthing.Config(data, delimiter = "/", defaults = {}, requirements = [], **misc_options)`.
- `data` is the dict you want to wrap the class around.
- `delimiter` is whatever you want to use as a path delimiter.
- `defaults` is a dict whose keys are paths and values are the default values for each path.
- `requirements` is a list of paths that must be defined, otherwise MissingRequirementError is raised.
- Miscellaneous options are as follows:
- `strict_subscript`: when True, enables strict mode when getting items via subscript. Default is False.
- `clobber_subscript`: when True, enables clobber mode when setting items via subscript. Default is False.
### Methods
#### `get(path, fallback = None, strict = False)`
Tries to return the value at the specified path, otherwise returns the fallback value (or raises PathNotFoundError if `strict` is True).
#### `set(path, value, clobber = False)`
Tries to set the value at the specified path. If it encounters an item that isn't a dict, it'll raise NotDictError if `clobber` is False, or it'll replace that with an empty dict.
#### Subscripting
Config objects are subscriptable, calling `get` and `set` as appropriate. The two `subscript` options control what `strict` and `clobber` are set to when subscripting.

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pyproject.toml Normal file
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[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"
[project]
name = "confthing"
version = "0.1"
authors = [
{ name="whut", email="watewhut@aaathats3as.com" },
]
description = "Allows working with dicts using path strings"
readme = "README.md"
requires-python = ">=3.7"
classifiers = [
"Programming Language :: Python :: 3",
"License :: Other/Proprietary License",
"Operating System :: OS Independent",
]
[project.urls]
"Homepage" = "https://git.lain.church/whut/confthing"

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src/config-test.yaml Normal file
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alpha:
aleph:
a: 12345
b: abcde
c: ["i","ro","ha"]
bet: 123
gimel: "abc"
dalet:
a:
b:
c:
d: "hey"

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src/confthing/__init__.py Normal file
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class PathError(Exception):
def __init__(self, path):
self.path = path
super().__init__(self.path)
class PathNotFoundError(PathError):
pass
class MissingRequirementError(PathError):
pass
class NotDictError(PathError):
pass
class Config:
def __init__(self, data, delimiter = "/", defaults = {}, requirements = [], **misc_options):
self.data = data
self.delimiter = delimiter
self.strict_subscript = misc_options.get("strict_subscript", False)
self.clobber_subscript = misc_options.get("clobber_subscript", False)
for r in requirements:
if not self.get(r): raise MissingRequirementError(r)
for d in defaults:
try:
self.get(d, strict = True)
except PathNotFoundError:
self.set(d, defaults[d])
def split_path(self, path):
return path.split(self.delimiter)
def get(self, path, fallback = None, strict = False):
elementsAll = self.split_path(path)
def g(elems = elementsAll, obj = self.data):
if not elems or not elems[0] or type(obj) != dict: return obj
head, tail = elems[0], elems[1:]
if strict and head not in obj:
raise PathNotFoundError(path)
return g(tail, obj.get(head, fallback))
return g()
def set(self, path, value, clobber = False):
elementsAll = self.split_path(path)
def s(elems = elementsAll, obj = self.data):
head, tail = elems[0], elems[1:]
# YANDEV MODE ACTIVATE!!!
if not tail:
obj[head] = value
else:
if head not in obj or type(obj[head]) != dict:
if clobber:
obj[head] = {}
else:
raise NotDictError(self.delimiter.join(elementsAll[:-len(tail)]))
s(tail, obj[head])
s()
def __getitem__(self, path):
return self.get(path, self.strict_subscript)
def __setitem__(self, path, value):
self.set(path, value, self.clobber_subscript)

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import yaml
class PathError(Exception):
def __init__(self, path):
self.path = path
super().__init__(self.path)
class PathNotFoundError(PathError):
pass
class MissingRequirementError(PathError):
pass
class NotDictError(PathError):
pass
class Config:
def __init__(self, data, delimiter = "/", defaults = {}, requirements = [], **misc_options):
self.data = yaml.safe_load(open(data)) if type(data) != dict else data
self.delimiter = delimiter
self.strict_subscript = misc_options.get("strict_subscript", False)
self.clobber_subscript = misc_options.get("clobber_subscript", False)
for r in requirements:
if not self.get(r): raise MissingRequirementError(r)
for d in defaults:
if not self.get(d): self.set(d, defaults[d])
def split_path(self, path):
return path.split(self.delimiter)
def get(self, path, fallback = None, strict = False):
elementsAll = self.split_path(path)
def g(elems = elementsAll, obj = self.data):
if not elems or not elems[0] or type(obj) != dict: return obj
head, tail = elems[0], elems[1:]
if strict and head not in obj:
raise PathNotFoundError(path)
return g(tail, obj.get(head, fallback))
return g()
def set(self, path, value, clobber = False):
elementsAll = self.split_path(path)
def s(elems = elementsAll, obj = self.data):
head, tail = elems[0], elems[1:]
# YANDEV MODE ACTIVATE!!!
if not tail:
obj[head] = value
else:
if head not in obj or type(obj[head]) != dict:
if clobber:
obj[head] = {}
else:
raise NotDictError(self.delimiter.join(elementsAll[:-len(tail)]))
s(tail, obj[head])
s()
def __getitem__(self, path):
return self.get(path, self.strict_subscript)
def __setitem__(self, path, value):
self.set(path, value, self.clobber_subscript)

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src/test.py Executable file
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#!/usr/bin/env python3
import confthing, yaml
conf = confthing.Config(yaml.safe_load(open("config-test.yaml")), defaults = {
"alpha/aleph/llll": 1337
}, requirements = [
"alpha/bet"
], clobber_subscript = True)
test = lambda n: print("\"%s\"\n\t%s\n" % (n, conf[n]))
test("")
test("alpha/aleph")
conf["alpha/aleph"] = {"i": "now set to a string"}
test("alpha/aleph/i")
conf["alpha/aleph/i/one/two/three"] = 12345
test("alpha/aleph/i")