Decorator patter

#decorator pattern uses a decorator that adds a bahavior to an existing function or class  
# e.g. here is aDecorator that is a wrapper function 
def aDecorator(func):     #func is the wrapped function
   def wrapper(*args, **kwargs):
      ret = func(*args, **kwargs)  #get reault of wrapped function
      return f' Decorator has converted result to upper-case: {ret.upper()} '
   return wrapper          #wrapper contains the decoration and result of wrapped function 

@aDecorator                # aDecorator is the wrapper function
def exampleFunction():
   return "basic output"   #lower-case string

print(exampleFunction())   #addDecoration adds note and converts to Upper-case

#Output:
#  Decorator has converted result to upper-case: BASIC OUTPUT

Similar codes

26 votes324 views5 answers
Display max rows pandas
Python
0 vote336 views1 answer
Multiple delimiters pandas
Python
0 vote329 views1 answer
Mu python replicate array n times
Python
0 vote304 views1 answer
Verilog import module
Python
0 vote369 views1 answer
Mysql.connector.errors.InterfaceError: Failed executing the operation; Not all parameters were used in the SQL statement
Python
1 vote307 views1 answer
'set' object is not reversible
Python
1 vote291 views1 answer
Anaconda install requests
Python
0 vote304 views1 answer
Python use variable name as variable
Python
0 vote308 views1 answer
Group the values for each key in the RDD into a single sequence.
Python
9 votes309 views1 answer
Pass argument to a py file
Python