CODEWITHSUNDEEP
pythonfunction
TomSelleck
TomSelleck

Reputation: 6968

Printing a function and its parameters as a string

I have a function which looks like this:

function_dictionary = {'get_user_from_id': (requests.get,                           #Function
                                           (url + "/users/" + str(user_id),),       #Tuple of Arguments
                                           {'headers': headers}),                   #Dictionary of keyword args

                           'get_user_from_username': (requests.get,
                                            (url + "/users?username=" + str(user_id),),
                                            {'headers': headers}),

                           'get_user_from_email': (requests.get,
                                         (url + "/users?email=" + str(user_id),),
                                         {'headers': headers}),

                           'delete': (requests.delete,
                                      (url + "/users/" + str(user_id),),
                                      {'headers': headers}),

                           'patch_user':(requests.patch,
                                         (url + "/users/" + str(user["ID"]),),
                                         {'headers': headers, 'data':json.dumps(user)}),

                           'post': (requests.post,
                                    (url + "/users" ,),
                                    {'headers': headers,'data':json.dumps(user)})
                           }

func, args, kwargs = function_dictionary[request]

func(*args, **kwargs)

result = func(*args, **kwargs)

I need to record the exact line of code which is about to be executed. In a perfect world, I am looking for something like this:

print func(*args, **kwargs).toString or str(func(*args, **kwargs)

Does anybody know if what I am trying to do is possible or should I focus on just building a string myself?

Cheers!

Upvotes: 0

Views: 93

Answers (1)

thefourtheye
thefourtheye

Reputation: 239473

For your case, you can simply do

print func.func_name, args, kwargs

I would write a generic decorator, if I am defining the functions myself, like this

def decorate_logger(func):
    def inner(*args, **kwargs):
        print "Entering", func.func_name, "with Parameters :", args, kwargs
        temp = func(*args, **kwargs)
        print "Leaving ", func.func_name, "with :", temp, "for :", args, kwargs
        return temp
    return inner

@decorate_logger
def sum(a, b, c):
    return a + b + c

print sum(1, 2, 3)
print sum(1, 2, c = 3)

Output

Entering sum with Parameters : (1, 2, 3) {}
Leaving  sum with : 6 for : (1, 2, 3) {}
6
Entering sum with Parameters : (1, 2) {'c': 3}
Leaving  sum with : 6 for : (1, 2) {'c': 3}
6

Upvotes: 3

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