[Python] Incorrect code generated for integer properties with enum

Description

Data type of enum items in Python generated code for property setter does not match to given yaml/json datatype (and/or expected type of property). It leads to permanent validation failures.

Swagger-codegen version

2.2.1

Swagger declaration file content or url

yaml

baudrate:
  type: integer
  format: int32
  enum:
    - 1200
    - 2400
    - 4800
    - 9600
    - 19200

json

"baudrate" : {
    "type" : "integer",
    "format" : "int32",
    "enum" : [1200, 2400, 4800, 9600, 19200]
}

Produced code

@baudrate.setter
def baudrate(self, baudrate):
    """
    Sets the baudrate of this ModbusRtuSettings.

    :param baudrate: The baudrate of this ModbusRtuSettings.
    :type: int
    """
    allowed_values = ["1200", "2400", "4800", "9600", "19200"]
    if baudrate not in allowed_values:
        raise ValueError(
            "Invalid value for `baudrate` ({0}), must be one of {1}"
            .format(baudrate, allowed_values)
        )

    self._baudrate = baudrate

Expected code

    ...
    allowed_values = [1200, 2400, 4800, 9600, 19200]
    if baudrate not in allowed_values:
    ...

Command line used for generation

So far used/generated via swagger-editor (generator)

Start with the Python generator used by swagger-codegen 2.2.1 and reproduce generation from the YAML or JSON declaration shown here. Trace how integer enum values become the setter's allowed_values list, then verify that generated values remain integers and no longer cause validation failures.