Count lines of code in directory using Python

I have a project whose lines of code I want to count. Is it possible to count all the lines of code in the file directory containing the project by using Python?

from os import listdir
from os.path import isfile, join

def countLinesInPath(path,directory):
    count=0
    for line in open(join(directory,path), encoding="utf8"):
        count+=1
    return count

def countLines(paths,directory):
    count=0
    for path in paths:
        count=count+countLinesInPath(path,directory)
    return count

def getPaths(directory):
    return [f for f in listdir(directory) if isfile(join(directory, f))]

def countIn(directory):
    return countLines(getPaths(directory),directory)

To count all the lines of code in the files in a directory, call the "countIn" function, passing the directory as a parameter.