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pycharm can't reference global variable inside a function

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0

I defines a global variable in function.But PyCharm can't reference this global variable.
code like this:

a.py:
g_Handle = None
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a
a.g_handle 
# PyCharm will reference 'g_handle' as None,
# but I want reference 'g_handle' as mods.handle_class

I try to add type for g_handle, but I don't want import mods directly in a.py

a.py:
g_handle =None # type: mods.handle_class

but this is not work.can't find mods
so I want to know how to let PyCharm can reference g_handle as mods.handle_class.
Thank you.

python pycharm

share|improve this question

edited Mar 9 at 4:59

sair

asked Mar 9 at 3:46

sairsair

12

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is like you are not defining g_handle in your file a.py. You should define it at the zero-indentation level.
  
  – lmiguelvargasf
  Mar 9 at 3:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  yes . but I don't want assignt it at the zero-indentation level.Only want assign it in function. And I want PyCharm want reference g_handle as mods.handle_class.
  
  – sair
  Mar 9 at 4:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  a global variable by definition should be declared at the zero-indentation level. Otherwise, we are talking about local variables inside a function which are not accessible in other functions due scoping rules.
  
  – lmiguelvargasf
  Mar 9 at 4:02
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  em.I'm sorry for didn't explain this question clearly.I have edited the question already.
  
  – sair
  Mar 9 at 5:02
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it looks like you will have g_handle set as None until you call Init
  
  – lmiguelvargasf
  Mar 9 at 5:07
  

  
  
  
  

 | 
show 1 more comment

0

I defines a global variable in function.But PyCharm can't reference this global variable.
code like this:

a.py:
g_Handle = None
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a
a.g_handle 
# PyCharm will reference 'g_handle' as None,
# but I want reference 'g_handle' as mods.handle_class

I try to add type for g_handle, but I don't want import mods directly in a.py

a.py:
g_handle =None # type: mods.handle_class

but this is not work.can't find mods
so I want to know how to let PyCharm can reference g_handle as mods.handle_class.
Thank you.

python pycharm

share|improve this question

edited Mar 9 at 4:59

sair

asked Mar 9 at 3:46

sairsair

12

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is like you are not defining g_handle in your file a.py. You should define it at the zero-indentation level.
  
  – lmiguelvargasf
  Mar 9 at 3:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  yes . but I don't want assignt it at the zero-indentation level.Only want assign it in function. And I want PyCharm want reference g_handle as mods.handle_class.
  
  – sair
  Mar 9 at 4:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  a global variable by definition should be declared at the zero-indentation level. Otherwise, we are talking about local variables inside a function which are not accessible in other functions due scoping rules.
  
  – lmiguelvargasf
  Mar 9 at 4:02
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  em.I'm sorry for didn't explain this question clearly.I have edited the question already.
  
  – sair
  Mar 9 at 5:02
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it looks like you will have g_handle set as None until you call Init
  
  – lmiguelvargasf
  Mar 9 at 5:07
  

  
  
  
  

 | 
show 1 more comment

I defines a global variable in function.But PyCharm can't reference this global variable.
code like this:

a.py:
g_Handle = None
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a
a.g_handle 
# PyCharm will reference 'g_handle' as None,
# but I want reference 'g_handle' as mods.handle_class

I try to add type for g_handle, but I don't want import mods directly in a.py

a.py:
g_handle =None # type: mods.handle_class

but this is not work.can't find mods
so I want to know how to let PyCharm can reference g_handle as mods.handle_class.
Thank you.

python pycharm

share|improve this question

edited Mar 9 at 4:59

sair

asked Mar 9 at 3:46

sairsair

12

a.py:
g_Handle = None
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a
a.g_handle 
# PyCharm will reference 'g_handle' as None,
# but I want reference 'g_handle' as mods.handle_class

a.py:
g_handle =None # type: mods.handle_class

share|improve this question

edited Mar 9 at 4:59

sair

asked Mar 9 at 3:46

sairsair

12

share|improve this question

edited Mar 9 at 4:59

sair

asked Mar 9 at 3:46

sairsair

12

asked Mar 9 at 3:46

sairsair

12

asked Mar 9 at 3:46

sairsair

12

1 Answer
1

active

oldest

votes

0

I'm not sure if it's an element of the way you're asking your question, but it looks like you've got multiple problems here. The first is an import reference problem (or possibly using an import where a class would be more effective).

See, if you run the code only as you have described and provided, you would never get the correct answer that you seek because the Init function in a.py would never get called.

You need to have the intended global variable defined in some way in the global scope prior to being used like in your code.

The global statement merely tells the interpreter to link the values of the provided variable across all states. It does not define the variable in the outermost scope on its own.

Therefore, something like this (EDIT: FIXED):

a.py:
g_handle = False
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a

a.Init()
a.g_handle

...should work to return what you're looking for.

If you could use a class instead of importing from another module, you could save yourself from trouble too:

import mods

class a():
 g_handle = False
 global g_handle

 def __init__(self, handle_class):
 g_handle = handle_class()

if __name__ == "__main__":
 a(mods.handle_class).g_handle

share|improve this answer

edited Mar 10 at 12:54

answered Mar 9 at 4:38

etherwaretherwar

8319

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  but PyCharm can't reference a.g_handle as mods.handle_class alse, and no have smart code completion.I'm sorry for didn't explain this question clearly.
  
  – sair
  Mar 9 at 4:55
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  sorry I made a mistake in my code. it should work now. I changed g = False to g_handle = False
  
  – etherwar
  Mar 10 at 12:46
  

  
  
  
  

add a comment | 

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0

I'm not sure if it's an element of the way you're asking your question, but it looks like you've got multiple problems here. The first is an import reference problem (or possibly using an import where a class would be more effective).

See, if you run the code only as you have described and provided, you would never get the correct answer that you seek because the Init function in a.py would never get called.

You need to have the intended global variable defined in some way in the global scope prior to being used like in your code.

The global statement merely tells the interpreter to link the values of the provided variable across all states. It does not define the variable in the outermost scope on its own.

Therefore, something like this (EDIT: FIXED):

a.py:
g_handle = False
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a

a.Init()
a.g_handle

...should work to return what you're looking for.

If you could use a class instead of importing from another module, you could save yourself from trouble too:

import mods

class a():
 g_handle = False
 global g_handle

 def __init__(self, handle_class):
 g_handle = handle_class()

if __name__ == "__main__":
 a(mods.handle_class).g_handle

share|improve this answer

edited Mar 10 at 12:54

answered Mar 9 at 4:38

etherwaretherwar

8319

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  but PyCharm can't reference a.g_handle as mods.handle_class alse, and no have smart code completion.I'm sorry for didn't explain this question clearly.
  
  – sair
  Mar 9 at 4:55
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  sorry I made a mistake in my code. it should work now. I changed g = False to g_handle = False
  
  – etherwar
  Mar 10 at 12:46
  

  
  
  
  

add a comment | 

0

I'm not sure if it's an element of the way you're asking your question, but it looks like you've got multiple problems here. The first is an import reference problem (or possibly using an import where a class would be more effective).

See, if you run the code only as you have described and provided, you would never get the correct answer that you seek because the Init function in a.py would never get called.

You need to have the intended global variable defined in some way in the global scope prior to being used like in your code.

The global statement merely tells the interpreter to link the values of the provided variable across all states. It does not define the variable in the outermost scope on its own.

Therefore, something like this (EDIT: FIXED):

a.py:
g_handle = False
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a

a.Init()
a.g_handle

...should work to return what you're looking for.

If you could use a class instead of importing from another module, you could save yourself from trouble too:

import mods

class a():
 g_handle = False
 global g_handle

 def __init__(self, handle_class):
 g_handle = handle_class()

if __name__ == "__main__":
 a(mods.handle_class).g_handle

share|improve this answer

edited Mar 10 at 12:54

answered Mar 9 at 4:38

etherwaretherwar

8319

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  but PyCharm can't reference a.g_handle as mods.handle_class alse, and no have smart code completion.I'm sorry for didn't explain this question clearly.
  
  – sair
  Mar 9 at 4:55
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  sorry I made a mistake in my code. it should work now. I changed g = False to g_handle = False
  
  – etherwar
  Mar 10 at 12:46
  

  
  
  
  

add a comment | 

I'm not sure if it's an element of the way you're asking your question, but it looks like you've got multiple problems here. The first is an import reference problem (or possibly using an import where a class would be more effective).

See, if you run the code only as you have described and provided, you would never get the correct answer that you seek because the Init function in a.py would never get called.

You need to have the intended global variable defined in some way in the global scope prior to being used like in your code.

The global statement merely tells the interpreter to link the values of the provided variable across all states. It does not define the variable in the outermost scope on its own.

Therefore, something like this (EDIT: FIXED):

a.py:
g_handle = False
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a

a.Init()
a.g_handle

...should work to return what you're looking for.

If you could use a class instead of importing from another module, you could save yourself from trouble too:

import mods

class a():
 g_handle = False
 global g_handle

 def __init__(self, handle_class):
 g_handle = handle_class()

if __name__ == "__main__":
 a(mods.handle_class).g_handle

share|improve this answer

edited Mar 10 at 12:54

answered Mar 9 at 4:38

etherwaretherwar

8319

a.py:
g_handle = False
def Init():
 import mods
 global g_handle
 g_handle = mods.handle_class()

b.py:
import a

a.Init()
a.g_handle

import mods

class a():
 g_handle = False
 global g_handle

 def __init__(self, handle_class):
 g_handle = handle_class()

if __name__ == "__main__":
 a(mods.handle_class).g_handle

share|improve this answer

edited Mar 10 at 12:54

answered Mar 9 at 4:38

etherwaretherwar

8319

answered Mar 9 at 4:38

etherwaretherwar

8319

answered Mar 9 at 4:38

etherwaretherwar

8319