Python3 how to use multi-threading ascending program running speed

from git_tools.git_tool import get_collect_projects, QQNews_Git
from threading import Thread, Lock
import datetime

base_url = ""
project_members_commits_lang_info = {}
lock = Lock()
threads = []

'''
Author:zenkilan
'''


def count_time(func):
  def took_up_time(*args, **kwargs):
    start_time = ()
    ret = func(*args, **kwargs)
    end_time = ()
    took_up_time = (end_time - start_time).total_seconds()
    print(f"{func.__name__} execution took up time:{took_up_time}")
    return ret

  return took_up_time


def get_project_member_lang_code_lines(git, member, begin_date, end_date):
  global project_members_commits_lang_info
  global lock
  member_name = member["username"]
  r = git.get_user_info(member_name)
  if not r["id"]:
    return
  user_commits_lang_info = git.get_commits_user_lang_diff_between(r["id"], begin_date, end_date)
  if len(user_commits_lang_info) == 0:
    return
  ()
  project_members_commits_lang_info.setdefault(, dict())
  project_members_commits_lang_info[][member_name] = user_commits_lang_info
  ()


def get_project_lang_code_lines(project, begin_date, end_date):
  global threads
  git = QQNews_Git(project[1], base_url, project[0])
  project_members = git.get_project_members()
  if len(project_members) == 0:
    return
  for member in project_members:
    thread = Thread(target=get_project_member_lang_code_lines, args=(git, member, begin_date, end_date))
    (thread)
    ()


@count_time
def get_projects_lang_code_lines(begin_date, end_date):
  """
  Getting project line-of-code language-related statistics - a new approach (to improve efficiency)
  Applying multithreading instead of for loops
  Concurrent access to shared external resources
  :return.
  """
  global project_members_commits_lang_info
  global threads
  for project in get_collect_projects():
    thread = Thread(target=get_project_lang_code_lines, args=(project, begin_date, end_date))
    (thread)
    ()


@count_time
def get_projects_lang_code_lines_old(begin_date, end_date):
  """
  Getting project line-of-code language-related statistics - the old way (seriously time-consuming)
  Programming using the most basic ideas
  Double for loop nesting and each level contains time consuming operations
  :return.
  """
  project_members_commits_lang_info = {}
  for project in get_collect_projects():
    git = QQNews_Git(project[1], base_url, project[0])
    project_members = git.get_project_members()
    user_commits_lang_info_dict = {}
    if len(project_members) == 0:
      continue
    for member in project_members:
      member_name = member["username"]
      r = git.get_user_info(member_name, debug=False)
      if not r["id"]:
        continue
      try:
        user_commits_lang_info = git.get_commits_user_lang_diff_between(r["id"], begin_date, end_date)
        if len(user_commits_lang_info) == 0:
          continue
        user_commits_lang_info_dict[member_name] = user_commits_lang_info
        project_members_commits_lang_info[] = user_commits_lang_info_dict
      except:
        pass
  return project_members_commits_lang_info


def test_results_equal(resultA, resultB):
  """
  Test method
  :param resultA.
  :param resultB.
  :return.
  """
  print(resultA)
  print(resultB)
  assert len(str(resultA)) == len(str(resultB))


if __name__ == '__main__':
  from git_tools.config import begin_date, end_date

  get_projects_lang_code_lines(begin_date, end_date)
  for t in threads:
    ()
  old_result = get_projects_lang_code_lines_old(begin_date, end_date)
  test_results_equal(old_result, project_members_commits_lang_info)