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typer_nightmare.py

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+import sys
+import pkgutil
+import importlib
+import inspect
+import time
+import random
+
+
+def import_all_libraries():
+    for e, name, e in pkgutil.iter_modules():
+        if name not in sys.modules:
+            try:
+                importlib.import_module(name)
+            except:
+                pass
+
+def get_defined_classes(module):
+    classes = inspect.getmembers(module, inspect.isclass)
+    return [cls_obj for cls_name, cls_obj in classes]
+
+
+common_default = {int: 0, str: "", bool: False, list: [], dict: {},
+                  set: set(), float: 0.0, complex: complex(0, 0),
+                  tuple: (), iter: iter(())}
+
+
+def typer_nightmare(defined_classes):
+    some_class = random.choice(defined_classes)
+    try:
+        sign = inspect.signature(some_class)
+        params = sign.parameters
+
+        args = {}
+        for name, param in params.items():
+            if param.default != inspect.Parameter.empty:
+                args[name] = param.default
+            else:
+                annotation = param.annotation
+                if annotation in common_default:
+                    args[name] = common_default[annotation]
+                else:
+                    args[name] = None
+
+        return some_class(**args)
+
+    except:
+        try:
+            maybe = some_class()
+            return maybe
+        except:
+            return some_class
+
+
+def main():
+    import_all_libraries()
+    defined_classes = []
+    for module in sys.modules.copy():
+        defined_classes.extend(get_defined_classes(sys.modules[module]))
+    defined_classes_unique = list(set(defined_classes))
+    result = typer_nightmare(defined_classes_unique)
+    print(f"And... you get an object of type {type(result)}, here is your object {result}")
+
+main()