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 vote276 views1 answer
Image data generator keras with tf.data.Data.from_generator
Python
0 vote287 views1 answer
Restaurant management system in django
Python Django
2 votes298 views3 answers
How to set indian timezone in django
Python Django
6 votes287 views3 answers
Messages django
Python Django
1 vote264 views1 answer
Python nCr n choose r function
Python
0 vote279 views1 answer
.replace pandas in for loop
Python
2 votes262 views1 answer
Python for doing os command execution
Python
0 vote261 views1 answer
Label encoding multiple columns
Python
29 votes270 views6 answers
List to string python
Python
0 vote264 views1 answer
Python get pc runtime
Python