Are the elements of the list number?

There is a list ['2014', '2015', '2016', 'zzz', 'aaa', 'xxx'], you need to determine whether the list item number. How can this be done?
July 9th 19 at 10:09
1 answer
July 9th 19 at 10:11
S. isdigit()
Thank you. It turns out, lost the brackets when writing :( - Velma_Weissnat68 commented on July 9th 19 at 10:14

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