Cannot download songs which are only invalid characters.

[thesadru]

Describe the bug
When trying to download songs like / / // / /

To Reproduce
Please copy paste the entire command, running it in verbose more by passing the -V flag.
example: spotify_dl -V -l "https://open.spotify.com/track/3gCPs1TDRH9v9QlF5h3zD5" -o "."

Starting spotify_dl
Setting debug mode on spotify_dl
Checking for tokens
Tokens fetched: 5101752732e048cb95519b4c5ae9af0b 912b21db564c454fb7288ff8932627be
Arguments: Namespace(url='https://open.spotify.com/track/3gCPs1TDRH9v9QlF5h3zD5', output='.', download=True, format_str='bestaudio/best', skip_mp3=False, scrape=True, verbose=True, version=False)
Got item type track and item_id 3gCPs1TDRH9v9QlF5h3zD5
Traceback (most recent call last):
  File "c:\program files\python39\lib\pathlib.py", line 1312, in mkdir
    self._accessor.mkdir(self, mode)
FileNotFoundError: [WinError 3] The system cannot find the path specified: '    '

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\program files\python39\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\program files\python39\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\D\AppData\Roaming\Python\Python39\Scripts\spotify_dl.exe\__main__.py", line 7, in <module>
  File "C:\Users\D\AppData\Roaming\Python\Python39\site-packages\spotify_dl\spotify_dl.py", line 79, in spotify_dl
    save_path.mkdir(parents=True, exist_ok=True)
  File "c:\program files\python39\lib\pathlib.py", line 1317, in mkdir
    self.mkdir(mode, parents=False, exist_ok=exist_ok)
  File "c:\program files\python39\lib\pathlib.py", line 1312, in mkdir
    self._accessor.mkdir(self, mode)
FileNotFoundError: [WinError 3] The system cannot find the path specified: '    '
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Expected behavior
The characters should have been somehow escaped.

Desktop (please complete the following information):

• OS: Windows 10
• Python version: 3.9.0
• spotify_dl version: 7.5.0

[SathyaBhat]

ha, this is amusing. I'll take a look

[kithenry]

what if all special or illegal characters in a download query instead of being replaced with something else, are prepended [escaped] with a back slash \.. how is that

[SathyaBhat]

what if all special or illegal characters in a download query instead of being replaced with something else, are prepended [escaped] with a back slash \.. how is that

@kithstack1 the script is used on all OS, and escaping with \ is not valid because WIndows considers \ as a reserved character, thus filenames cannot have \

for this reason the sanitze function exists, but that replaces all "illegal" characters with.. nothing, so probably a better replacement would be an underscore _