Question

我刚刚设置了一个新的python脚本，当我运行它时，我得到错误代码：

File "conversion.py", line 17
    elif filetype == "Audio":
       ^

我的代码是：

if filetype == "Document":
    path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
    os.chdir(path[1:-2])
    filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
    Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .txt: ")
    from subprocess import check_call   
subprocess.check_call(['unoconv', '-f', Fileextension, filename])

elif filetype == "Audio":
    path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
    os.chdir(path[1:-2])
    filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
    Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .mp3: ")
    body, ext = os.path.splitext("filename")
    check_call(["ffmpeg" ,"-i", filename, body Fileextension])

elif filetype == "Video":
    path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
    os.chdir(path[1:-2])
    filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
    Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .mp4: ")
    body, ext = os.path.splitext("filename")
    from subprocess import check_call   
    check_call(["ffmpeg" ,"-i", filename, body Fileextension])

elif filetype == "Image":
    path = raw_input("Please drag and drop the directory in which the file is stored into the terminal:")
    os.chdir(path[1:-2])
    filename = raw_input("Please enter the name of the file you would like to convert, including the file-type. e.g. test.txt, however please do make sure that the file-name does not have any spaces:")
    Fileextension = raw_input("What filetype would you like the program to convert your file to. E.g. .Jpeg: ")
    body, ext = os.path.splitext("filename")
    from subprocess import check_call   
    check_call(["ffmpeg" ,"-i", filename, body Fileextension])

有没有人知道这里的错误是什么。非常感谢任何解决方案。我一直试图解决它一个小时，我仍然不知道它为什么会发生。

Answer 1

您正在混合制表符和空格，因此您的subprocess.check_call(['unoconv', '-f', Fileextension, filename])行不会缩进得足够远。 Python扩展选项卡以匹配每个 8个空格，但您似乎已将编辑器配置为缩进为4个空格而不是选项卡：

>>> lines = '''\
...             from subprocess import check_call       
...     subprocess.check_call(['unoconv', '-f', Fileextension, filename])
... '''
>>> lines.splitlines()[1]
"    subprocess.check_call(['unoconv', '-f', Fileextension, filename])"
>>> lines.splitlines()[0]
'    \tfrom subprocess import check_call\t'

注意\t行上的import字符，而下一行（在上面打印以更好地调出标签）。除subprocess.call()行外，所有缩进行都使用制表符。

配置编辑器以将标签扩展为空格;当您避免使用缩进标签时，Python效果最佳。 Python style guide强烈建议您在标签上使用空格：

空格是首选的缩进方法。

选项卡应仅用于与代码保持一致   已经缩进了标签。

if语句的错误代码

1 个答案: