Robofied

## Function with arguments
@ company
def office_hours(start_time,finish_time):
    return ('Hi! Your office hours will be ' + str((int(finish_time.split(':')[0]) - int(start_time.split(':')[0])))+' hours.')
  
print(office_hours('10:00','18:00'))

#[Output]:
#'Hi! Your office hours will be 8 hours.'

Robofied

## Now this nested function will be able to handle any no. of arguments - zero, one , so on arguments and also able to handle ## key value pair arguments as well.
def company(decorated_function):
    ## Importing logging module
    import logging
    ## Creating a file to store the logging info
    logging.basicConfig(filename= 'log_file.log',level=logging.INFO)
        
    ## *args => any no. of aruguments    ## **kwargs => any no. of key      value pair value or dictionary values

    def wrapper_function(*args, **kwargs):

Robofied

## Now this nested function will be able to handle any no. of arguments - zero, one , so on arguments and also able to handle 
## key value pair arguments as well.

def company(decorated_function):
    
    ## *args => any no. of aruguments
    ## **kwargs => any no. of key value pair value or dictionary values
    def wrapper_function(*args, **kwargs):
        print('Wrapper function is executed first')
        return decorated_function(*args, **kwargs)

Robofied

@ company
def office_hours(start_time,finish_time):
    return ('Hi! Your office hours will be ' + str((int(finish_time.split(':')[0]) - int(start_time.split(':')[0])))+ 
              ' hours.')
  
## Here it is giving the error because our wrapper function will not be able to handle any no.of arguments
print(office_hours('10:00','18:00'))

#[Output]:
#---------------------------------------------------------------------------

Robofied

@ company
def new_employee():
    print('Hi! Welcome to Robofied team')
    
new_employee()

#[Output]:
#Wrapper function is executed first
#Hi! Welcome to Robofied team

Robofied

""" defining a nested function, in that inner function i.e, a wrapper function is calling the passed function in outer function
"""
def company(decorated_function):
     
    def wrapper_function():
        print('Wrapper function is executed first')
        ## calling the decorator function
        return decorated_function()
    
    return wrapper_function

Robofied

def office_hours(start_time,finish_time):
    return ('Hi! Your office hours will be ' + str((int(finish_time.split(':')[0]) - int(start_time.split(':')[0])))+ 
              ' hours.')
              
              
args = ('10:00','18:00')
print(office_hours(*args))

#[Output]:
#'Hi! Your office hours will be 8 hours.'

Robofied

## function which is taking multiple or any no. of agruments
## **kwargs takes input in the form of dictionary only.

def multiple_args(**kwargs):
    
    ## printing key and value pair.
    for key, value in kwargs.items():
        print('Key is {0} and value is {1}'.format(key,value))
        
## creating a dictionary to be passed in the function

Robofied

## Creating a function which can take multiple(any no. of ) arguments
## Here in this example it is not much necessary to give unknown number of parameters
## But in some cases we are not knowing then this *args is very useful

def office_hours(*args):
    return ('Hi!'+ str(args[0]) +' Your office hours will be ' + str((int(args[2].split(':')[0]) - int(args[1].split(':')[0])))+ 
              ' hours.')
  
## calling the above function
office_hours('Rajesh','10:00','18:00')

Robofied

def office_hours(start_time, finish_time):
    s = start_time
    f = finish_time
    
    def cal_working_hours():
        return ('Hi '+ '! Your office hours will be ' + str((int(f.split(':')[0]) - int(s.split(':')[0])))+ 
              ' hours.')
    
    ## returning the function but without () 
    return cal_working_hours