因此，我一直在开发一个递归函数，该函数在仅.txt文件的python目录中循环，并且单词必须为4个字符长，并且忽略某些单词。我无法获取此以打印常用字词

import os
os.listdir("/Users/tylerjones/Downloads")

def walk(dirname,mydict):    
    for name in os.listdir(dirname):
    path = os.path.join(dirname,name)
    if os.path.isfile(path):
        if (path.endswith(".txt")):
            #listifyFile(path,mydict)
            files.append(path)
    else:
        walk(path)
for line in walk:
    line = line.translate(line.maketrans(' ',' ',string.punctuation))
    ignore = ['the','a','if','in','it','of','or','on','and','to','because','ok','']
    line = line.lower()
    for word in line:
        if (line in d) and len(word)==4:
            d[word] = d[word] + 1
            print(d)
        else:
            d[word] = 1
            print(d)