template tags for inspecting variables inside templates

inspect.py

from django import template
register = template.Library()

@register.simple_tag
def props(obj):
    result = []
    for key in dir(obj):
        try:
            result.append("%s -> %s<br/>" % (key, getattr(obj, key)))
        except Exception as e:
            result.append("%s -> %s<br/>" % (key, e))
    
    return "".join(result)

@register.simple_tag
def classof(obj):
    return obj.__class__.__name__
    
@register.simple_tag
def dictof(obj):
    return str(obj.__dict__)

@register.simple_tag
def metaof(obj):
    return str(obj.__class__.__class__)