use global variable in python code example
Example 1: 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
Example 2: python global variables
global var1
var1 = 'whatever'
Example 3: global variable python
# Python global variable
# Probably should not use this, just pass in arguments
x = 0 # variable is in outer scope
print(x) # prints x (0)
def use_global_variables():
# if using a global variable, the variable will not need to be mention while calling the function
global x # calling the x variable from a function
x += 1
print(x) # prints x after adding one in the function (1)
use_global_variables
=============================================
# Output:
0
1
Example 4: 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(' ')
Example 5: how to make a variable global in python
x = 5 #Any variable outside a function is a global variable
def GLOBAL():
global y #if a variable is inside a function, use the 'global' keyword
y = 10 # now this variable (y) is global
Example 6: global variable python
a = 0
def testFor():
global a
if(a == 0):
#run code