How to call static method from a static variable inside a class?
I'm trying to implement a simple class with static vars and static methods:
class X(object):
@staticmethod
def do_something(par):
# do something with parameter par
#...
return something
static_var = X.do_something(5) #<-- that's how I call the function
But I have the error NameError: name 'X' is not defined.
How to do call this static function?
python-3.x oop
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
|
show 9 more comments
I'm trying to implement a simple class with static vars and static methods:
class X(object):
@staticmethod
def do_something(par):
# do something with parameter par
#...
return something
static_var = X.do_something(5) #<-- that's how I call the function
But I have the error NameError: name 'X' is not defined.
How to do call this static function?
python-3.x oop
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
Where do you definepar?
– Red Cricket
Nov 23 '18 at 22:19
What are you trying to do?paris a parameter indo_somethingand you're trying to useparoutside of that definition.
– ggorlen
Nov 23 '18 at 22:32
@RedCricket I don't know where to define it. I hope somebody can help.
– mimic
Nov 23 '18 at 22:36
@ggorlen How to define the ANS properly? I'm trying to call static function from the static variable and definitely I'm not doing properly but I don't know how to do it, that's the question.
– mimic
Nov 23 '18 at 22:38
You are not usingparin your method so just get rid of it.
– Red Cricket
Nov 23 '18 at 22:38
|
show 9 more comments
I'm trying to implement a simple class with static vars and static methods:
class X(object):
@staticmethod
def do_something(par):
# do something with parameter par
#...
return something
static_var = X.do_something(5) #<-- that's how I call the function
But I have the error NameError: name 'X' is not defined.
How to do call this static function?
python-3.x oop
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
I'm trying to implement a simple class with static vars and static methods:
class X(object):
@staticmethod
def do_something(par):
# do something with parameter par
#...
return something
static_var = X.do_something(5) #<-- that's how I call the function
But I have the error NameError: name 'X' is not defined.
How to do call this static function?
python-3.x oop
python-3.x oop
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
edited Nov 23 '18 at 23:31
ggorlen
7,1883825
7,1883825
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
asked Nov 23 '18 at 22:09
mimicmimic
1,22622455
1,22622455
Where do you definepar?
– Red Cricket
Nov 23 '18 at 22:19
What are you trying to do?paris a parameter indo_somethingand you're trying to useparoutside of that definition.
– ggorlen
Nov 23 '18 at 22:32
@RedCricket I don't know where to define it. I hope somebody can help.
– mimic
Nov 23 '18 at 22:36
@ggorlen How to define the ANS properly? I'm trying to call static function from the static variable and definitely I'm not doing properly but I don't know how to do it, that's the question.
– mimic
Nov 23 '18 at 22:38
You are not usingparin your method so just get rid of it.
– Red Cricket
Nov 23 '18 at 22:38
|
show 9 more comments
Where do you definepar?
– Red Cricket
Nov 23 '18 at 22:19
What are you trying to do?paris a parameter indo_somethingand you're trying to useparoutside of that definition.
– ggorlen
Nov 23 '18 at 22:32
@RedCricket I don't know where to define it. I hope somebody can help.
– mimic
Nov 23 '18 at 22:36
@ggorlen How to define the ANS properly? I'm trying to call static function from the static variable and definitely I'm not doing properly but I don't know how to do it, that's the question.
– mimic
Nov 23 '18 at 22:38
You are not usingparin your method so just get rid of it.
– Red Cricket
Nov 23 '18 at 22:38
Where do you define
par?– Red Cricket
Nov 23 '18 at 22:19
Where do you define
par?– Red Cricket
Nov 23 '18 at 22:19
What are you trying to do?
par is a parameter in do_something and you're trying to use par outside of that definition.– ggorlen
Nov 23 '18 at 22:32
What are you trying to do?
par is a parameter in do_something and you're trying to use par outside of that definition.– ggorlen
Nov 23 '18 at 22:32
@RedCricket I don't know where to define it. I hope somebody can help.
– mimic
Nov 23 '18 at 22:36
@RedCricket I don't know where to define it. I hope somebody can help.
– mimic
Nov 23 '18 at 22:36
@ggorlen How to define the ANS properly? I'm trying to call static function from the static variable and definitely I'm not doing properly but I don't know how to do it, that's the question.
– mimic
Nov 23 '18 at 22:38
@ggorlen How to define the ANS properly? I'm trying to call static function from the static variable and definitely I'm not doing properly but I don't know how to do it, that's the question.
– mimic
Nov 23 '18 at 22:38
You are not using
par in your method so just get rid of it.– Red Cricket
Nov 23 '18 at 22:38
You are not using
par in your method so just get rid of it.– Red Cricket
Nov 23 '18 at 22:38
|
show 9 more comments
1 Answer
1
active
oldest
votes
It looks like you'd like to initialize the value of a static class variable using a static function from that same class as it's being defined. You can do this using the following syntax taken from this answer but with an added parameter:
class X:
@staticmethod
def do_something(par):
return par
static_var = do_something.__func__(5)
print(X.static_var)
Output:
5
Try it!
Referencing a static method of the class X directly inside the X definition fails because X doesn't yet exist. However, since you have defined the @staticmethod do_something, you can call its __func__ attribute with the parameter and assign the result to static_var.
Having said that, more information about the underlying design goal you're trying to implement could reveal a better approach.
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It looks like you'd like to initialize the value of a static class variable using a static function from that same class as it's being defined. You can do this using the following syntax taken from this answer but with an added parameter:
class X:
@staticmethod
def do_something(par):
return par
static_var = do_something.__func__(5)
print(X.static_var)
Output:
5
Try it!
Referencing a static method of the class X directly inside the X definition fails because X doesn't yet exist. However, since you have defined the @staticmethod do_something, you can call its __func__ attribute with the parameter and assign the result to static_var.
Having said that, more information about the underlying design goal you're trying to implement could reveal a better approach.
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
add a comment |
It looks like you'd like to initialize the value of a static class variable using a static function from that same class as it's being defined. You can do this using the following syntax taken from this answer but with an added parameter:
class X:
@staticmethod
def do_something(par):
return par
static_var = do_something.__func__(5)
print(X.static_var)
Output:
5
Try it!
Referencing a static method of the class X directly inside the X definition fails because X doesn't yet exist. However, since you have defined the @staticmethod do_something, you can call its __func__ attribute with the parameter and assign the result to static_var.
Having said that, more information about the underlying design goal you're trying to implement could reveal a better approach.
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
add a comment |
It looks like you'd like to initialize the value of a static class variable using a static function from that same class as it's being defined. You can do this using the following syntax taken from this answer but with an added parameter:
class X:
@staticmethod
def do_something(par):
return par
static_var = do_something.__func__(5)
print(X.static_var)
Output:
5
Try it!
Referencing a static method of the class X directly inside the X definition fails because X doesn't yet exist. However, since you have defined the @staticmethod do_something, you can call its __func__ attribute with the parameter and assign the result to static_var.
Having said that, more information about the underlying design goal you're trying to implement could reveal a better approach.
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
It looks like you'd like to initialize the value of a static class variable using a static function from that same class as it's being defined. You can do this using the following syntax taken from this answer but with an added parameter:
class X:
@staticmethod
def do_something(par):
return par
static_var = do_something.__func__(5)
print(X.static_var)
Output:
5
Try it!
Referencing a static method of the class X directly inside the X definition fails because X doesn't yet exist. However, since you have defined the @staticmethod do_something, you can call its __func__ attribute with the parameter and assign the result to static_var.
Having said that, more information about the underlying design goal you're trying to implement could reveal a better approach.
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
answered Nov 23 '18 at 23:20
ggorlenggorlen
7,1883825
7,1883825
add a comment |
add a comment |
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Where do you define
par?– Red Cricket
Nov 23 '18 at 22:19
What are you trying to do?
paris a parameter indo_somethingand you're trying to useparoutside of that definition.– ggorlen
Nov 23 '18 at 22:32
@RedCricket I don't know where to define it. I hope somebody can help.
– mimic
Nov 23 '18 at 22:36
@ggorlen How to define the ANS properly? I'm trying to call static function from the static variable and definitely I'm not doing properly but I don't know how to do it, that's the question.
– mimic
Nov 23 '18 at 22:38
You are not using
parin your method so just get rid of it.– Red Cricket
Nov 23 '18 at 22:38