Python global variables

Python access global variable

globvar = 0

def set_globvar_to_one():
    global globvar    # Needed to modify global copy of globvar
    globvar = 1

def print_globvar():
    print(globvar)     # No need for global declaration to read value of globvar

set_globvar_to_one()
print_globvar()       # Prints 1

Source: stackoverflow.com

Global in python

a = 'this is a global variable'
def yourFunction(arg):
    #you need to declare a global variable, otherwise an error
    global a
    return a.split(' ')

Python local variables

'''Local variables are those that are defined in a block '''
a = 1 #This is NOT a local variable, this is a global variable
def add():
  b = 1 #This IS a local variable
  print(b)
add()
#If we tried to print(b) outside of the add() function, we would get an error

Python global variables

#### A_FILE.PY
a_global_variable = "Hello"
####sys.path.append(".")

##### B_FILE.PY
import a_file

output = a_file.a_global_variable

print(output)
------> Hello

Similar codes

0 vote146 views1 answer
What hormone causes the feeling of love
Python
1 vote141 views1 answer
Download lambda function layer
Python
0 vote139 views1 answer
Python catch int conversion error
Python
3 votes143 views1 answer
From collections import defaultdict
Python
1 vote140 views2 answers
Python sort list of integers
Python
0 vote133 views1 answer
Como tornar uma string numa lista
Python
21 votes100 views16 answers
How to convert pandas price column to integer
Python
0 vote127 views1 answer
Python turtle set direction
Python
2 votes144 views1 answer
Python pi value
Python
6 votes168 views1 answer
How to print a float with only 2 digits after decimal in python
Python