unpacking * is throwing syntax error on leetcode

Question

I am solving the coin change problem. I run code on jupyter-notebook with the given example on leetcode and it works.

The same code does not work on leetcode. causing syntax error:

Here is the code to copy:

def best_sum(target,nums):
    dp=[None for y in range(target+1)]
    dp[0]=[]
    for i in range(len(dp)):
        if dp[i]!=None:
            for num in nums:
                if i+num<=target:
                    combination=[*dp[i],num]
                    if dp[i+num]==None or len(combination)<len(dp[i+num]):
                        dp[i+num]=combination
    return dp[-1]
best_sum(11,[1,2,5])

Any idea what version of Python they're using? The `*` syntax within a list is allowed in Python 3, but not Python 2. — Tom Karzes, Aug 01 '21 at 05:51
@TomKarzes LeetCode identifies two languages `python` and `python3`. The former is obviously Py 2.7. — iBug, Aug 01 '21 at 05:58
@iBug They should add `python2`, and either eliminate `python` or else change it to be equivalent to `python3`, since Python 2 is no longer supported, and inappropriate as a default version of Python. — Tom Karzes, Aug 01 '21 at 06:01

iBug · Accepted Answer · 2021-08-01T06:00:35.507

6

Set your LeetCode language to "Python 3". The unpacking opereator isn't a thing in Python 2.

In case you weren't aware, there are two languages python and python3 available on LeetCode. Obviously python refers to Python 2.7.

edited Aug 01 '21 at 06:00

answered Aug 01 '21 at 05:51

iBug

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unpacking * is throwing syntax error on leetcode

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