折腾：
【已解决】Flask-restful中想要使用marshal格式化enum变量
期间，对于一个Python中的枚举变量：
class ItemType(enum.Enum): Unknown = "Unknown" # not set yet Small = "Small" # like file Medium = "Medium" # use bag Large = "Large" # use box VeryLarge = "VeryLarge" # use car |
希望对应的变量：
class EnumItem(fields.Raw): def format(self, value): gLog.debug("value=%s", value) return "%s" % (value) ‘itemType’ : EnumItem(attribute="itemType"), |
输出的是：
value=Small
结果是：
value=ItemType.Small
python enum to string
Python Enum class (with tostring fromstring) – Stack Overflow
Enum converter in python – Stack Overflow
django – How to get all values from python enum class? – Stack Overflow
加上str（unicode）的强制转换？
结果：
class EnumItem(fields.Raw): def format(self, value): gLog.debug("value=%s", value) gLog.debug("str(value)=%s", str(value)) gLog.debug("unicode(value)=%s", unicode(value)) valueStr = "%s" % (value) gLog.debug("valueStr=%s", valueStr) return valueStr |
输出：
| <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:40]: value=ItemType.Small <div–<—————————————————————————— <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:41]: str(value)=ItemType.Small <div–<—————————————————————————— <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:42]: unicode(value)=ItemType.Small <div–<—————————————————————————— <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:44]: valueStr=ItemType.Small |
python string enum output field value
How can I represent an ‘Enum’ in Python? – Stack Overflow
python string enum format
python enum string format
enum in Python | Python Conquers The Universe
8.13. enum — Support for enumerations — Python 3.5.2 documentation
>>> print(Color.red.name) red >>> member = Color.red >>> member.name ‘red’ >>> member.value 1 |
看来是可以：
通过枚举值的name和value，分别获得枚举值名字和对应的值
然后代码：
class ItemType(enum.Enum): Unknown = "Unknown" # not set yet Small = "Small" # like file Medium = "Medium" # use bag Large = "Large" # use box VeryLarge = "VeryLarge" # use car class EnumItem(fields.Raw): def format(self, someEnum): gLog.debug("someEnum=%s", someEnum) gLog.debug("str(someEnum)=%s", str(someEnum)) gLog.debug("unicode(someEnum)=%s", unicode(someEnum)) someEnumStr = "%s" % (someEnum) gLog.debug("someEnumStr=%s", someEnumStr) someEnumName = someEnum.name someEnumValue = someEnum.value gLog.debug("someEnumName=%s, someEnumValue=%s", someEnumName, someEnumValue) return someEnumValue |
就可以输出需要的结果了：
| <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:40]: someEnum=ItemType.Small <div–<—————————————————————————— <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:41]: str(someEnum)=ItemType.Small <div–<—————————————————————————— <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:42]: unicode(someEnum)=ItemType.Small <div–<—————————————————————————— <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:44]: someEnumStr=ItemType.Small <div–<—————————————————————————— <div–<—————————————————————————— DEBUG in Task [/root/RunningFast/staging/runningfast/resources/Task.py:48]: someEnumName=Small, someEnumValue=Small |
【总结】
此处，Python中的enum（注意，此处虽然是Python 2.7，但是安装了python34中enum34:
pip install enum34，所以使用起来，就是Python 3.4中的enum）
想要输出对应的字符串类型的enum中的对应的某个enum变量的值，即值的字符串，可以使用：
someEnumValue = someEnum.value |
即可。
另外，想要输出枚举值中某个类型的名字，可以用：
someEnumName = someEnum.name |