Failed to generate schema with typing.Any #237
Description
Hi,
Found issue with schema generation. Please look at example below:
Python 3.6.5 (default, Mar 30 2018, 06:41:53)
Type 'copyright', 'credits' or 'license' for more information
IPython 6.4.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: from pydantic import BaseModel
In [2]: from typing import Dict, Any
In [3]: class Model(BaseModel):
...: foo: Dict[str, Any]
...:
In [4]: Model.schema()
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-4-c6adfc7bfbde> in <module>()
----> 1 Model.schema()
~/Projects/Python/pydantic/pydantic/main.py in schema(cls, by_alias)
297 s['description'] = clean_docstring(cls.__doc__)
298
--> 299 s.update(cls.type_schema(by_alias))
300 cls._schema_cache[by_alias] = s
301 return s
~/Projects/Python/pydantic/pydantic/main.py in type_schema(cls, by_alias)
283 'properties': (
284 {f.alias: f.schema(by_alias) for f in cls.__fields__.values()}
--> 285 if by_alias else
286 {k: f.schema(by_alias) for k, f in cls.__fields__.items()}
287 )
~/Projects/Python/pydantic/pydantic/main.py in <dictcomp>(.0)
282 'type': 'object',
283 'properties': (
--> 284 {f.alias: f.schema(by_alias) for f in cls.__fields__.values()}
285 if by_alias else
286 {k: f.schema(by_alias) for k, f in cls.__fields__.items()}
~/Projects/Python/pydantic/pydantic/fields.py in schema(self, by_alias)
146 s.update(self._schema.extra)
147
--> 148 ts = self.type_schema(by_alias)
149 s.update(ts if isinstance(ts, dict) else {'type': ts})
150 return s
~/Projects/Python/pydantic/pydantic/fields.py in type_schema(self, by_alias)
164 return {
165 'type': 'mapping',
--> 166 'item_type': self._singleton_schema(by_alias),
167 'key_type': self.key_field.type_schema(by_alias)
168 }
~/Projects/Python/pydantic/pydantic/fields.py in _singleton_schema(self, by_alias)
185 'types': [sf.type_schema(by_alias) for sf in self.sub_fields]
186 }
--> 187 elif issubclass(self.type_, Enum):
188 choice_names = self._schema.choice_names or {}
189 return {
TypeError: issubclass() arg 1 must be a class
In [5]: