所有mp3文件的持续时间如何[重复]

Question

我想统计一个目录中的所有 mp3 文件。

import os
from subprocess import check_output

directory = r'c:\test'

sum = 0

for filename in os.listdir(directory):
    if filename.endswith(".mp3"):
        a = str(check_output('ffprobe -i  "'+filename +'" 2>&1 |findstr "Duration"',shell=True))
        a = a.split(",")[0].split("Duration:")[1].strip()
        h, m, s = a.split(':')
        duration = int(h) * 3600 + int(m) * 60 + float(s)
        print(os.path.join(directory, filename, duration))
        sum = sum + duration

sum = round(sum)
print("sum", sum)
time = datetime.timedelta(seconds=sum)
print(str(time))

我收到此错误，但我不知道为什么。有人可以帮我解决错误吗？非常感谢

File "loop.py", line 10
a = str(check_output('ffprobe -i  "'+filename+'" 2>&1 |findstr "Duration"',shell=True))
                                                                                       ^
TabError: inconsistent use of tabs and spaces in indentation

Answer 1

这个错误是任何程序员的祸根。根据您的 IDE，您可以使用 online tool 或全选，缩进然后取消缩进，但是，现在，您只需复制下面的代码，理论上应该可以修复错误（您可能会注意到它看起来一样，但相信我）：

import os
from subprocess import check_output

directory = r'c:\test'

sum = 0

for filename in os.listdir(directory):
    if filename.endswith(".mp3"):
        a = str(check_output('ffprobe -i  "'+file_name+'" 2>&1 |findstr "Duration"',shell=True))
        a = a.split(",")[0].split("Duration:")[1].strip()
        h, m, s = a.split(':')
        duration = int(h) * 3600 + int(m) * 60 + float(s)
        print(os.path.join(directory, filename, duration))
        sum = sum + duration

sum = round(sum)
print("sum", sum)
time = datetime.timedelta(seconds=sum)
print(str(time))

编辑：
新错误的根源在于 duration 不是字符串。使用str()进行转换：

import os
from subprocess import check_output

directory = r'c:\test'

sum = 0

for filename in os.listdir(directory):
    if filename.endswith(".mp3"):
        a = str(check_output('ffprobe -i  "'+file_name+'" 2>&1 |findstr "Duration"',shell=True))
        a = a.split(",")[0].split("Duration:")[1].strip()
        h, m, s = a.split(':')
        duration = int(h) * 3600 + int(m) * 60 + float(s)
        print(os.path.join(directory, filename, str(duration)))
        sum = sum + duration

sum = round(sum)
print("sum", sum)
time = datetime.timedelta(seconds=sum)
print(str(time))