jsup 2.1 - investor's relief (experiment on separation of investment and SNS)

by joviansummer original STEEMIT post: https://steemit.com/blog/@joviansummer/jsup-2-1-investor-s-relief-experiment-on-separation-of-investment-and-sns Hello, this is @joviansummer(witness: @jswit). I'm starting a new experiment regarding my @jsup vote service. The purpose of this experiment is to separate STEEM investment and social interaction(posting/commenting). For many people, writing a post daily(literally 365 posts per year) is not easy. It's not fun, and mandatory daily post only written for self-voting delegation service tends to result in useless low-quality content. I hope this new function of @jsup will reduce those posts, and also make it a bit more easy to invest in STEEM without worrying about daily posting. I think pressure of daily posting significantly undermines Steem as SNS. It's not fun. This is how it works: From 11:45 PM to 11:50 PM every night(reference time zone is GMT+9), @jsup checks if eligible delegators wrote something and received daily v...

파이썬 리스트에서 특정 원소에 대응하는 인덱스값 가져오기

by joviansummer
original STEEMIT post: https://steemit.com/blog/@joviansummer/5rmqcm


파이썬에서 리스트(list)의 특정 원소가 어느 위치에 있는지, 즉 인덱스(index)를 구하는 방법입니다.

fruits = ['orange', 'apple', 'banana']

# 'apple'에 해당되는 인덱스 구하기
idx_apple = fruits.index('apple')
print(idx_apple)

1

위의 예시에서 'apple'은 두번째 원소이므로 (0부터 시작하는) 인덱스는 1이 됩니다.

만약 같은 원소가 2개 이상 있을 경우에는 낮은 값의 인덱스가 구해집니다.

x = ['a','b','b','c','d','c']
print(x.index('b'))

1

print(x.index('c'))

3

만약 리스트에 포함되지 않은 원소에 대해서 인덱스를 구하려 할 경우에는 예외(exception)가 발생한다는 점도 유의해야 겠습니다.

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