如何确定字符串和整数之间的bool？ [英] How to determine the bool between the strings and ints?
问题描述
大家好，
我有一本设置字典。 settinfgs可以是字符串，整数
或bools。我想将这个列表动态地写入磁盘中的一个很大的
for循环，不幸的是bool需要写入0或1到带有WriteInt的
配置，整数也用WriteInt和字符串
用简单的写。
列表是这样的;
options [A] = True
options [b] = 1
options [C] =" Hello"
I想使用isinstance来确定它是bool还是int或
字符串。但是我很困惑在交互式编辑器中尝试它;
>> a =错误
if isinstance（a，bool）：
.... print" OK"
....
OK
> ;> if isinstance（a，int）：
.... print" OK"
....
OK
>> ;>
我收不到。是以某种方式从''int'派生的bool？什么是
检查我想写的配置是int还是
bool的最好方法是什么？
问候，
- Jorgen
Jorgen Boddeaécrit：
大家好，
我有一本设置字典。 settinfgs可以是字符串，整数
或bools。我想将这个列表动态地写入磁盘中的一个很大的
for循环，不幸的是bool需要写入0或1到带有WriteInt的
配置，整数也用WriteInt和字符串
用简单的写。
列表是这样的;
options [A] = True
options [b] = 1
options [C] =" Hello"
I想使用isinstance来确定它是bool还是int或
字符串。但是我很困惑在交互式编辑器中尝试它;
>>> a = False
如果isinstance（a，bool）：
... print" OK"
...
OK
>>> if isinstance（a，int）：
...打印OK
...
OK
我不明白。是以某种方式从''int'派生的bool？
显然：是的！ - ）
什么是
最好检查我想写的配置是int还是
bool的方法？
>> isinstance（0，bool）
False
>> isinstance（1，bool）
False
>>>
但无论如何，我不明白这一点，因为需要写出bool
为0或1的配置与WriteInt，整数也与WriteInt。
所以你只是不在乎它是否是一个bool？或者我错过了什么？
9月7日上午8:40，Jorgen Bodde < jorgen.maill ... @ gmail.comwrote：
大家好，
我有一个设置字典。 settinfgs可以是字符串，整数
或bools。我想将这个列表动态地写入磁盘中的一个很大的
for循环，不幸的是bool需要写入0或1到带有WriteInt的
配置，整数也用WriteInt和字符串
用简单的写。
列表是这样的;
options [A] = True
options [b] = 1
options [C] =" Hello"
I想使用isinstance来确定它是bool还是int或
字符串。但是我很困惑在交互式编辑器中尝试它;
> a = False
if isinstance（a， bool）：
...打印OK
...
OK>> if isinstance（a，int）：
...打印OK
...
好的
我收不到。是以某种方式从''int'派生的bool？什么是
检查我想写的配置是int还是
bool的最好方法是什么？
问候，
- Jorgen
这是在过去两周的讨论中提出但我不能找到
找到它在搜索谷歌。
看来你可以得到确切的类（而不是这是
类或衍生物那个isinstance（）似乎提供了具有__class__属性的
：
>> a = True
打印.__ class__ == bool
True
>> print a .__ class__ == int
False
>> b = 1
print b .__ class__ == int
True
>> print b .__ class__ == bool
False
棒极了！谢谢你！
至于为什么关心他们是否是bool，我写的是真实和假的
属性，内部机制就像这样工作所以我需要
来区分。
再次感谢大家，
- Jorgen
ps。对不起TheFlyingDutch亲自邮寄给你，我一直忘了
这个邮件列表在回复时没有默认回用户列表
;-)
Hi All,
I have a dictionary with settings. The settinfgs can be strings, ints
or bools. I would like to write this list dynamically to disk in a big
for loop, unfortunately the bools need to be written as 0 or 1 to the
config with WriteInt, the integers also with WriteInt and the strings
with a simple Write.
The list is something like;
options[A] = True
options[b] = 1
options[C] = "Hello"
I wanted to use isinstance to determine if it is a bool or an int or a
string. However I am confused trying it out in the interactive editor;
>>a = False
if isinstance(a, bool):
.... print "OK"
....
OK
>>if isinstance(a, int):
.... print "OK"
....
OK
>>>
I don''t get it. is the bool derived from ''int'' in some way? What is
the best way to check if the config I want to write is an int or a
bool ?
Regards,
- Jorgen
Jorgen Bodde a écrit :Hi All,
I have a dictionary with settings. The settinfgs can be strings, ints
or bools. I would like to write this list dynamically to disk in a big
for loop, unfortunately the bools need to be written as 0 or 1 to the
config with WriteInt, the integers also with WriteInt and the strings
with a simple Write.
The list is something like;
options[A] = True
options[b] = 1
options[C] = "Hello"
I wanted to use isinstance to determine if it is a bool or an int or a
string. However I am confused trying it out in the interactive editor;
>>>a = False
if isinstance(a, bool):
... print "OK"
...
OK>>>if isinstance(a, int):
... print "OK"
...
OK
I don''t get it. is the bool derived from ''int'' in some way?Obviously : yes !-)
What is
the best way to check if the config I want to write is an int or a
bool ?
>>isinstance(0, bool)
False
>>isinstance(1, bool)
False
>>>
But anyway, I don''t get the point, since "the bools need to be written
as 0 or 1 to the config with WriteInt, the integers also with WriteInt".
So you just don''t care if it''s a bool or not ? Or did I miss something ?
On Sep 7, 8:40 am, "Jorgen Bodde" <jorgen.maill...@gmail.comwrote:Hi All,
I have a dictionary with settings. The settinfgs can be strings, ints
or bools. I would like to write this list dynamically to disk in a big
for loop, unfortunately the bools need to be written as 0 or 1 to the
config with WriteInt, the integers also with WriteInt and the strings
with a simple Write.
The list is something like;
options[A] = True
options[b] = 1
options[C] = "Hello"
I wanted to use isinstance to determine if it is a bool or an int or a
string. However I am confused trying it out in the interactive editor;
>a = False
if isinstance(a, bool):
... print "OK"
...
OK>>if isinstance(a, int):
... print "OK"
...
OK
I don''t get it. is the bool derived from ''int'' in some way? What is
the best way to check if the config I want to write is an int or a
bool ?
Regards,
- JorgenThis came up in a discussion within the last two weeks but I cannot
find it in a search of google.
It appear that you can get the exact class (as opposed to "is this
class or a derivative" that isinstance() seems to provide)
with the __class__ attribute:
>>a = True
print a.__class__ == bool
True
>>print a.__class__ == int
False
>>b = 1
print b.__class__ == int
True
>>print b.__class__ == bool
False
Awesome! Thanks you!
As for why caring if they are bools or not, I write True and False to
the properties, the internal mechanism works like this so I need to
make that distinction.
Thanks again guys,
- Jorgen
ps. Sorry TheFlyingDutch for mailing you personally, I keep forgetting
this mailinglist does not default back to the user list when replying
;-)
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