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<type 'type'> extends (<class 'gluon.validators.Validator'>,)

Checks if name and extension of file uploaded through file input matches
given criteria.

Does *not* ensure the file type in any way. Returns validation failure
if no data was uploaded.

filename: filename (before dot) regex
extension: extension (after dot) regex
lastdot: which dot should be used as a filename / extension separator:
True means last dot, eg. file.png -> file / png
False means first dot, eg. file.tar.gz -> file / tar.gz
case: 0 - keep the case, 1 - transform the string into lowercase (default),
2 - transform the string into uppercase

If there is no dot present, extension checks will be done against empty
string and filename checks against whole value.

Check if file has a pdf extension (case insensitive):

INPUT(_type='file', _name='name',

Check if file has a tar.gz extension and name starting with backup:

INPUT(_type='file', _name='name',
extension='tar.gz', lastdot=False))

Check if file has no extension and name matching README
(case sensitive):

INPUT(_type='file', _name='name',
extension='^$', case=0)


IS_UPLOAD_FILENAME.__call__ <type 'instancemethod'> belongs to class <type 'instancemethod'>

IS_UPLOAD_FILENAME.__class__ <type 'type'> extends (<type 'object'>,) belongs to class <type 'type'>
type(object) -> the object's type type(name, bases, dict) -> a new type

IS_UPLOAD_FILENAME.__delattr__ <type 'wrapper_descriptor'> belongs to class <type 'wrapper_descriptor'>
x.__delattr__('name') <==> del

IS_UPLOAD_FILENAME.__dict__ <type 'dictproxy'> belongs to class <type 'dictproxy'>

IS_UPLOAD_FILENAME.__doc__ <type 'str'> belongs to class <type 'str'>
str(object='') -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

IS_UPLOAD_FILENAME.__format__ <type 'method_descriptor'> belongs to class <type 'method_descriptor'>
default object formatter

IS_UPLOAD_FILENAME.__getattribute__ <type 'wrapper_descriptor'> belongs to class <type 'wrapper_descriptor'>
x.__getattribute__('name') <==>

IS_UPLOAD_FILENAME.__hash__ <type 'wrapper_descriptor'> belongs to class <type 'wrapper_descriptor'>
x.__hash__() <==> hash(x)

IS_UPLOAD_FILENAME.__init__ <type 'instancemethod'> belongs to class <type 'instancemethod'>

IS_UPLOAD_FILENAME.__module__ <type 'str'> belongs to class <type 'str'>
str(object='') -> string Return a nice string representation of the object. If the argument is a string, the return value is the same object.

IS_UPLOAD_FILENAME.__new__ <type 'builtin_function_or_method'> belongs to class <type 'builtin_function_or_method'>
T.__new__(S, ...) -> a new object with type S, a subtype of T

IS_UPLOAD_FILENAME.__reduce__ <type 'method_descriptor'> belongs to class <type 'method_descriptor'>
helper for pickle

IS_UPLOAD_FILENAME.__reduce_ex__ <type 'method_descriptor'> belongs to class <type 'method_descriptor'>
helper for pickle

IS_UPLOAD_FILENAME.__repr__ <type 'wrapper_descriptor'> belongs to class <type 'wrapper_descriptor'>
x.__repr__() <==> repr(x)

IS_UPLOAD_FILENAME.__setattr__ <type 'wrapper_descriptor'> belongs to class <type 'wrapper_descriptor'>
x.__setattr__('name', value) <==> = value

IS_UPLOAD_FILENAME.__sizeof__ <type 'method_descriptor'> belongs to class <type 'method_descriptor'>
__sizeof__() -> int size of object in memory, in bytes

IS_UPLOAD_FILENAME.__str__ <type 'wrapper_descriptor'> belongs to class <type 'wrapper_descriptor'>
x.__str__() <==> str(x)

IS_UPLOAD_FILENAME.__subclasshook__ <type 'builtin_function_or_method'> belongs to class <type 'builtin_function_or_method'>
Abstract classes can override this to customize issubclass(). This is invoked early on by abc.ABCMeta.__subclasscheck__(). It should return True, False or NotImplemented. If it returns NotImplemented, the normal algorithm is used. Otherwise, it overrides the normal algorithm (and the outcome is cached).

IS_UPLOAD_FILENAME.__weakref__ <type 'getset_descriptor'> belongs to class <type 'getset_descriptor'>
list of weak references to the object (if defined)

IS_UPLOAD_FILENAME.formatter <type 'instancemethod'> belongs to class <type 'instancemethod'>
For some validators returns a formatted version (matching the validator) of value. Otherwise just returns the value.