python threading confusing code 'int' object is not callable

问题

its messy i know, but the threading is so confusing ...i dont know if the problem is in my sintax or if it is in the method im using... the def do inserts in mysql (and its working when is not threading),another strange thing is that after runing the code i noticed rows are inserted correctly but i still get "self._target(*self._args, **self._kwargs) TypeError: 'int' object is not callable"

def thistaginsert(tagy):
    global idn
    global forbidentags
    global termcount
    tagy = tagy[0]
    if not tagy.isdigit():
        if not tagy in forbidentags:
            wordpress.execute(s_term % tagy)
            term0 = wordpress.fetchall()
            term0 = term0[0][0]
            if term0 == 0:
                tmp_i_term = i_term.format(tag1=tagy, tag2=tagy)
                wordpress.execute(tmp_i_term)
                cnx2.commit()
                tmp_s_termname = s_termname.format(buceta=tagy)
                wordpress.execute(tmp_s_termname)
                term = wordpress.fetchall()
                term = term[0]
                wordpress.execute(i_termtax % term)
                cnx2.commit()
                wordpress.execute(s_tax % term)
                tax_id = wordpress.fetchall()
                tax_id = tax_id[0][0]
                tmp_i_RL = i_RL.format(idn=idn, taxid=tax_id)
                wordpress.execute(tmp_i_RL)
                cnx2.commit()
                termcount += 1
            else:
                tmp_s_termname = s_termname.format(buceta=tagy)
                wordpress.execute(tmp_s_termname)
                term = wordpress.fetchall()
                term = term[0]
                wordpress.execute(s_tax % term)
                tax_id = wordpress.fetchall()
                tax_id = tax_id[0][0]
                tmp_i_RL = i_RL.format(idn=idn, taxid=tax_id)
                wordpress.execute(tmp_i_RL)
                cnx2.commit()
                termcount += 1
        return termcount
.
.
. #many lines later
                if tags:
                  for tag in tags:
                        ttt = Thread(target=thistaginsert(tag))
                        ttt.start()
                        threads.append(ttt)
                else:
                    print('no tags')

回答1:

You are directly calling the function and then passing the result to the Thread() constructor as the target function. Since the function returns an int, that explains the error; you are trying to use an int as the thread's entry point, and an int is not callable.

Presumably you intended to have the function invocation happen on another thread. To make that happen, change this:

ttt = Thread(target=thistaginsert(tag))
#                   ^
# This invokes the function and uses the result as the "target" argument.

To:

ttt = Thread(target=lambda: thistaginsert(tag))
#                   ^
# This syntax creates a new function object that will call thistaginsert(tag) when
# it is called, and that new function is what gets passed as the "target" argument.

---

As pointed out in the comments, you can also do this:

ttt = Thread(target=thistaginsert, args=(tag,))
#                               ^ Note the lack of parens; we are passing the
#                                 function object, not calling it!

来源：https://stackoverflow.com/questions/25734595/python-threading-confusing-code-int-object-is-not-callable