Add test to import all modules to check validity of stubs (#56)

* add import_all.test builder

* fix errors

* fix typechecking errors

* fix migrations typechecking

django-stubs/contrib/auth/forms.pyi

@@ -1,44 +1,24 @@
-import collections
-import datetime
-from typing import Any, Dict, Iterator, List, Optional, Union, Type
+from typing import Any, Dict, Iterator, Optional
 
 from django.contrib.auth.base_user import AbstractBaseUser
 from django.contrib.auth.models import AbstractUser, User
 from django.contrib.auth.tokens import PasswordResetTokenGenerator
 from django.core.exceptions import ValidationError
 from django.core.handlers.wsgi import WSGIRequest
-from django.forms.utils import ErrorList
-from django.http.request import QueryDict
-from django.utils.datastructures import MultiValueDict
 
 from django import forms
 
 UserModel: Any
 
 class ReadOnlyPasswordHashWidget(forms.Widget):
-    attrs: Dict[Any, Any]
     template_name: str = ...
 
 class ReadOnlyPasswordHashField(forms.Field):
-    widget: Any = ...
     def __init__(self, *args: Any, **kwargs: Any) -> None: ...
-    def bound_data(self, data: None, initial: str) -> str: ...
-    def has_changed(self, initial: str, data: Optional[str]) -> bool: ...
 
-class UsernameField(forms.CharField):
-    def to_python(self, value: Optional[str]) -> str: ...
+class UsernameField(forms.CharField): ...
 
 class UserCreationForm(forms.ModelForm):
-    auto_id: str
-    data: Dict[str, str]
-    empty_permitted: bool
-    error_class: Type[ErrorList]
-    fields: collections.OrderedDict
-    files: Dict[Any, Any]
-    initial: Dict[Any, Any]
-    instance: User
-    is_bound: bool
-    label_suffix: str
     error_messages: Any = ...
     password1: Any = ...
     password2: Any = ...
@@ -46,30 +26,11 @@ class UserCreationForm(forms.ModelForm):
     def clean_password2(self) -> str: ...
 
 class UserChangeForm(forms.ModelForm):
-    auto_id: str
-    data: Dict[Any, Any]
-    empty_permitted: bool
-    error_class: Type[ErrorList]
-    fields: collections.OrderedDict
-    files: Dict[Any, Any]
-    initial: Dict[str, Optional[Union[List[Any], datetime.datetime, int, str]]]
-    instance: User
-    is_bound: bool
-    label_suffix: str
     password: Any = ...
     def __init__(self, *args: Any, **kwargs: Any) -> None: ...
     def clean_password(self) -> str: ...
 
 class AuthenticationForm(forms.Form):
-    auto_id: str
-    data: QueryDict
-    empty_permitted: bool
-    error_class: Type[ErrorList]
-    fields: collections.OrderedDict
-    files: MultiValueDict
-    initial: Dict[Any, Any]
-    is_bound: bool
-    label_suffix: str
     username: Any = ...
     password: Any = ...
     error_messages: Any = ...
@@ -82,21 +43,12 @@ class AuthenticationForm(forms.Form):
     def get_invalid_login_error(self) -> ValidationError: ...
 
 class PasswordResetForm(forms.Form):
-    auto_id: str
-    data: Dict[Any, Any]
-    empty_permitted: bool
-    error_class: Type[ErrorList]
-    fields: collections.OrderedDict
-    files: Dict[Any, Any]
-    initial: Dict[Any, Any]
-    is_bound: bool
-    label_suffix: str
     email: Any = ...
     def send_mail(
         self,
         subject_template_name: str,
         email_template_name: str,
-        context: Dict[str, Union[AbstractBaseUser, str]],
+        context: Dict[str, Any],
         from_email: Optional[str],
         to_email: str,
         html_email_template_name: Optional[str] = ...,
@@ -116,15 +68,6 @@ class PasswordResetForm(forms.Form):
     ) -> None: ...
 
 class SetPasswordForm(forms.Form):
-    auto_id: str
-    data: Dict[Any, Any]
-    empty_permitted: bool
-    error_class: Type[ErrorList]
-    fields: collections.OrderedDict
-    files: Dict[Any, Any]
-    initial: Dict[Any, Any]
-    is_bound: bool
-    label_suffix: str
     error_messages: Any = ...
     new_password1: Any = ...
     new_password2: Any = ...
@@ -134,31 +77,10 @@ class SetPasswordForm(forms.Form):
     def save(self, commit: bool = ...) -> AbstractBaseUser: ...
 
 class PasswordChangeForm(SetPasswordForm):
-    auto_id: str
-    data: Dict[Any, Any]
-    empty_permitted: bool
-    error_class: Type[ErrorList]
-    fields: collections.OrderedDict
-    files: Dict[Any, Any]
-    initial: Dict[Any, Any]
-    is_bound: bool
-    label_suffix: str
-    user: User
-    error_messages: Any = ...
     old_password: Any = ...
-    field_order: Any = ...
     def clean_old_password(self) -> str: ...
 
 class AdminPasswordChangeForm(forms.Form):
-    auto_id: str
-    data: Dict[Any, Any]
-    empty_permitted: bool
-    error_class: Type[ErrorList]
-    fields: collections.OrderedDict
-    files: Dict[Any, Any]
-    initial: Dict[Any, Any]
-    is_bound: bool
-    label_suffix: str
     error_messages: Any = ...
     required_css_class: str = ...
     password1: Any = ...
@@ -167,5 +89,3 @@ class AdminPasswordChangeForm(forms.Form):
     def __init__(self, user: AbstractUser, *args: Any, **kwargs: Any) -> None: ...
     def clean_password2(self) -> str: ...
     def save(self, commit: bool = ...) -> AbstractUser: ...
-    @property
-    def changed_data(self) -> List[str]: ...