All Questions
28 questions
0
votes
0
answers
21
views
Python function variable scoping and expressions [duplicate]
I notice that global variables in Python (3.9.10) can be accessed within functions, but not mutated as shown below:
No error:
def absolute_value(number):
print(y)
if number < 0:
...
- 97
0
votes
1
answer
947
views
Python - Get name list of objects of a specified class in the namespace
I want to get a list of all dictionary objects that exist in the namespace.
I know that %whos() magic function will print the list, but as far as I could tell, it just prints and doesn't return ...
- 1,424
-1
votes
2
answers
285
views
How to stop variables becoming local?
I'm trying to create a function to verify if a move in a game is legal. At the top of my code, I declared the variable Valid.
p1 = [1,1]
p2 = [1,1]
turn = 1
move = 0
Valid = False
and later on, I ...
- 17
0
votes
2
answers
505
views
Python local variable 'message' referenced before assignment problem
liquid = [l_press,l_dosage,l_bottle,l_position,l_clog,l_counter]
for j in range(len(liquid)):
data = liquid_filling(liquid[j])
publish.single(liquid[j],data,qos = 0, hostname = ...
- 47
-1
votes
1
answer
74
views
Assigning variables in a function
In the code below, I can see that the variables end_line and internal_line are assigned to their characters but then below that in the for loop, another variable called end_line is being assigned to ...
- 11
2
votes
0
answers
38
views
Python: A global variable in a local function possible? [duplicate]
Consider the programm:
x = 0
def f():
c = 2
def g():
c = 4
print(c)
print(c)
I want that the c in g() is the same as the c in f().
Normally one would use the keyword ...
- 31
-1
votes
1
answer
40
views
User enter a date string ('year' or 'month') and it applies to date.userinputdate
I have
term = input("Enter a variable name") #choose the term (i.e.,day,week,month)
and in my code there is a section as below
date.term
I like users can input 'month' or 'year' and the ...
- 35
0
votes
1
answer
56
views
Is this a good practice with functions? [closed]
I am working on my very first python programming. I have no PC programming experience. I was having issues with using global variables inside my function. So I defined them again.
Here is the top of ...
- 23
1
vote
1
answer
133
views
Is using globals() or locals() to avoid the creation of a rarely needed variable a good idea?
I have a script that processes folders. A few folders (say 5% of them) have a special status assigned to them based on their content. I use a variable special = True to store this status, which later ...
- 80
0
votes
1
answer
1k
views
Setting **kwargs as local variables
I wanted to receive some arguments via **kwargs and convert them to local variables. So I first tried like this:
for k, v in kwargs.items():
cmd = k + ' = ' + stringify(v)
exec(cmd)
Which ... ...
- 198
0
votes
1
answer
212
views
Python program that identifies variables of a .py file and prints them
I need to create a program that finds all the variables of .py file(globals and locals) and print them.
But I don't know how to use the function dir() or global()/local() on the other .py file for ...
- 31
0
votes
2
answers
999
views
How to acces items in dictionary as variables inside another function?
I'm writing a script that has to intitializate and read lots of variables and some files before actually calculating some stuff. Since I need to perform the calculations several times I separated the ...
- 35
1
vote
1
answer
216
views
Maximise the f_locals dictionary in spyder variable explorer
This is a Spyder IDE specific question
Spyder IDE does not show local variables of a method in variable explorer, it only shows the global variables. So to get the local variables in variable ...
- 175
0
votes
1
answer
57
views
python Fetch existing variables into a list [duplicate]
I've used locals() function and created some variables. Now I need to fetch all the variables created into a list, how should I do?
example:
column_list=[x for x in range(100)]
for i,j in enumerate(...
- 649