如何使用Python 3从文件夹/目录搜索和播放mp3文件？

Question

我想编写一个python代码，当给出一个字符串（要搜索的mp3文件的名称）时，它会搜索与文件名匹配的给定字符串的目录。找到后，它会打开并播放它。

我有一个代码来搜索给定的目录给定的字符串。是否可以修改此代码以实现上述任务？谢谢。 `

#Import os module 
import os 

# Ask the user to enter string to search 
search_path = input("Enter directory path to search : ") 
file_type = input("File Type : ") 
search_str = input("Enter the search string : ") 

# Append a directory separator if not already present 
if not (search_path.endswith("/") or search_path.endswith("\\")): 
     search_path = search_path + "/" 

# If path does not exist, set search path to current directory 
if not os.path.exists(search_path): 
     search_path ="." 

# Repeat for each file in the directory 
for fname in os.listdir(path=search_path): 

    # Apply file type filter 
    if fname.endswith(file_type): 

     # Open file for reading 
     fo = open(search_path + fname) 

     # Read the first line from the file 
     line = fo.readline() 

     # Initialize counter for line number 
     line_no = 1 

     # Loop until EOF 
     while line != '' : 
       # Search for string in line 
       index = line.find(search_str) 
       if (index != -1) : 
        print(fname, "[", line_no, ",", index, "] ", line, sep="") 

       # Read next line 
       line = fo.readline() 

       # Increment line counter 
       line_no += 1 
     # Close the files 
     fo.close() 

Answer 1

这段代码有点不同，但对上述问题最好。

!/usr/bin/env python3 

import os 
import random 
import sys 

rdm = raw_input("Would you let me make a choice? 0 or 1: ") 

#cur_dir = os.getcwd() 

if rdm == '1': 
    print("Playing random song") 
    folder=os.listdir(os.getcwd()) #To randomly play a song 
    file=random.choice(folder) 
    ext3=['.mp3'] 
    print('First random pick: '+file) 

    while file[-4:] not in ext3 : 
     print('Not an MP3 file : '+file) 
     file=random.choice(folder) 
    else: 
     os.startfile(file) 
     print('Song name: '+file) 

    sys.exit() 

else: 
    if rdm == '0': 
     file_name = raw_input("File Name: ") #file to be searched 
     #cur_dir = raw_input("Search Directory: ") # Dir from where search starts can be replaced with any path 
     cur_dir = os.getcwd() 
     while True: 
      file_list = os.listdir(cur_dir) 
      parent_dir = os.path.dirname(cur_dir) 
      if file_name in file_list: 
       print ("File Exists in: "), cur_dir 
       # 
       os.startfile(file_name) 
       # 
       break 
      else: 
       if cur_dir == parent_dir: #if dir is root dir 
        print ("File not found") 
        break 
       else: 
        cur_dir = parent_dir