Refers to a spaces where variables and other items may be accessed from any scope.
Questions tagged [globals]
335 questions
4
votes
1 answer
Listing all top level global variables in emacs
Mostly for my own edification I'm trying to list all of the global variables loaded in the current Emacs session. What I was thinking about doing is producing an HTML file with all of the functions listed. Of course, what would also be useful is…
lucidquiet
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4
votes
1 answer
python globals dictionary
I want to merge a dictionary , recieved from another module as a function argument to the globals dictionary of the current module. Any idea how this can be done ?
module - test.py
def setdict(indict):
somedict = dict(globals(), **indict)
what…
Abhaya
- 187
- 2
- 8
4
votes
2 answers
capture change of global variable value in python
How do i detect or capture change of value of a global variable in python
variable = 10
print(variable)
variable = 20
# Detect changes to the value using a signal to trigger a function
UPDATE
AST docs - GOOD INTRO…
Gary
- 2,027
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4
votes
1 answer
How to make global variables work in Spyder inside a function?
I cannot modify global variables interactively in Spyder 4.0.0 with Python 3.8, Windows 10.
There must have been a recent change because this was possible before.
I have the following example file:
x = 5
def IncreaseX():
global x
x +=…
Dollarius
- 51
- 3
4
votes
2 answers
How to avoid using global in C to detect setting of variable?
I have function foo() which is called from two different code flows.
Lets say these two code flows have two different functions calling foo()
bar() and tar()
I want to do make some decision on the basis of which function(bar() or tar()) has called…
Deeps
- 43
- 5
4
votes
5 answers
How to avoid globals in C?
as a beginner I read everywhere to avoid excess use of global variables. Well how to do so? My low skill fails. I am ending up passing tons of structures and it is harder to read than using globals. Argh my code is mess any good book/article…
dummyprogrammer
- 49
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4
votes
1 answer
Is this __import__ functionality correct?
I have a package named jiva_tasks, which I'm trying to import via celery (using the CELERY_IMPORTS attribute of celeryconfig. The import statement that celery is using is this:
__import__(module, [], [], [''])
Oddly enough, when this syntax is…
Jason Baker
- 171,942
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4
votes
2 answers
Scope inside Python exec
When a variable/function is defined inside an exec it seems to go to the locals() instead to the globals() how I can change this behaviour? This only happens when you pass the global and local dictionaries to the exec.
Example:
exec("""
a = 2
def…
Josep Virgili Llop
- 51
- 3
3
votes
2 answers
How to avoid globals in Perl Tk (Tkx) GUI programming using an MVC model
I have an old and very large Perl Tk GUI application that I'm refactoring to Tkx. I want to split the interface into several packages so I can build up the application UI in a modular manner. Also, I want to keep the View separate from the Model,…
Lozzer
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3
votes
3 answers
Javascript Object Question
I'm a beginner w/ Javascript. I'm looking at the following code that someone else wrote:
function MeetingPage()
{
MeetingPage.colors = new Object();
}
...
var meeting = new MeetingPage();
From what I've seen, I believe that the MeetingPage…
mj_
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3
votes
1 answer
Python3 globals() and locals() contents
In my Python3 learning, while trying out globals() and locals(), I made a very basic, stand-alone Python program and received results for which I ask for expert explanation.
I then executed the same 2 functions inside my Python program (any) and…
samtal
- 109
- 1
- 10
3
votes
1 answer
When you declare a variable of the same name both inside and outside the class/function, how do you know which value of the variable will be used?
a=0
b=1
class A:
a=42
b=list((a,a+1,a+2))
x=A()
print(x.b)
output: [42, 43, 44]
VS
a=0
b=1
class A:
a=42
b=list((a+i for i in range(3)))
x=A()
print(x.b)
output: [0, 1, 2]
So in the first example, a=42 was used. But in the second…
Qingwan Kuah
- 131
- 4
3
votes
6 answers
(php) Better way to use global variables? Or how to avoid them?
I was reading somewhere that using global variables is generally a bad idea but I am not sure what the alternative is...
I have this code now and I need to use global $config, $db in every single function. = copy & paste
class Layout {
public…
Martin Zeltin
- 622
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3
votes
2 answers
Is there any point in globals or 'evil' singletons
I previously used Singletons for global classes, if it's absolutely necessary i.e. logging, error handling. But I am now using unit testing which doesn't like these!
I would like to ask a basic question on globals. What's the point in them? …
Christopher Grigg
- 1,895
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- 28
3
votes
2 answers
Python - How to obtain a dictionary(or even a list) of variables in a specific scope; more specific than locals/globals()
So, the title pretty much says it all.
for instance let's look at the below example code:
## How can I obtain a dict/list (like locals()) of all the variables in second and/or third layer scopes via a command
# coming from the first layer?
## Or…
Michael Beyer
- 79
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