phpdude

from django.contrib.admin import ModelAdmin, register, SimpleListFilter
from django.db.models.functions import Length, StrIndex, Substr, NullIf, Coalesce
from django.db.models import Value as V

from .models import Item


class AlphanumericSignatureFilter(SimpleListFilter):
    title = 'Signature (alphanumeric)'
    parameter_name = 'signature_alphanumeric'

phpdude

from django.contrib.admin import ModelAdmin, register
from django.db.models import IntegerField
from django.db.models.functions import Cast
from django.db.models.expressions import Func, Value

from .models import Foo


class RegexpMatches(Func):
    function = 'REGEXP_MATCHES'

phpdude

import ast

import astor  # read more at https://astor.readthedocs.io/en/latest/

parsed = ast.parse(open('source.py').read())

for node in ast.walk(parsed):
    # let's work only on functions & classes definitions
    if not isinstance(node, (ast.FunctionDef, ast.ClassDef, ast.AsyncFunctionDef)):
        continue

phpdude

Can do it :)