[Flask] incomplete reserved words list

[chubinou]

Description

• some python reserved keywords (self, None) are not escaped properly
• some python3 reserved keywords (True, False) are not escaped

Swagger-codegen version

2.2.3

Swagger declaration file content or url

%YAML 1.0
---
swagger: '2.0'
info:
  version: v1
paths:
  /link:
    get:
      responses:
        "200":
          schema:
            $ref: "#/definitions/True"
        "400":
          schema:
            $ref: "#/definitions/self"
definitions:
  True:
    type: object
    properties:
      True:
        type: string
  self:
    type: object
    properties:
      self:
        type: integer

this produce a Link model like

#swagger_server/models/self.py
class Self(Model):
    def __init__(self, self: int=None):
        "..."
        self._self = self
#swagger_server/models/true.py
class True(Model):
    def __init__(self, true: str=None):
        "..."
        

Suggest a fix/enhancement

setReservedWordsLowerCase is called twice, the second time with an incomplete list

[wing328]

Closed via #6112 (which updated reserved word list for both python client and server)