fixed None path breaking in get_url()

[arham-sayyed]

Fixed None Path breaking the code in get_url() function.

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Title: Improved download and get_url methods in Storage class

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Description:

This PR addresses issues with the download and get_url methods in the Storage class. The changes ensure more consistent behavior and cleaner code.

Changes:

1. Download Method:

   • Simplified the path stripping logic.
   • Used lstrip for cleaner removal of leading slashes.

2. Get URL Method:

   • Used ternary condition to simplify the logic.
   • Used lstrip to ensure consistent behavior.

Code Changes:

Before:

def download(self, path, filename, token=None):
    ...
    if path.startswith('/'):
        path = path[1:]
    ...
def get_url(self, token):
    ...
    if path.startswith('/'):
        path = path[1:]
    ...

After:

def download(self, path, filename, token=None):
    ...
    path = path.lstrip('/')
    ...
def get_url(self, token):
    ...
    path = self.path if self.path else ''
    path = path.lstrip('/')
    ...

Impact:

These changes result in a cleaner and more maintainable codebase. They also ensure consistent behavior when manipulating paths in the Storage class.

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Credits: @ndesamuelmbah