selenium python question

I want to list URLs in elems. Please advise.

elems = driver.find_elements_by_xpath("//a[contains(@href,'abc.com')]")
#for elem in elems:
url = elems.get_attribute("href")
print(url)

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I'm getting this error.

AttributeError                            Traceback (most recent call last)
<ipython-input-291-f30319c0a4c2> in <module>
      2 #for elem in elems:
      3
----> 4 url = elems.get_attribute("href")
      5 print(url)

AttributeError: 'list' object has no attribute 'get_attribute'

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