18 lines
457 B
Python
18 lines
457 B
Python
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class History:
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def __init__(self):
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self.urls = []
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def has_links(self):
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"""Return True if there is at least one URL in the history."""
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return bool(self.urls)
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def push(self, url):
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"""Add an URL to the history."""
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if not self.urls or self.urls[-1] != url:
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self.urls.append(url)
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def pop(self):
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"""Return latest URL added to history and remove it."""
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return self.urls.pop()
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