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null out n% values in series dictionary python

How can I randomly make n% values null in a pandas series? Let’s say I want 20% null values in my dictionary, series, or list. input something = expected output with 20% null = Answer You can just use series.sample(frac=%) to index and set the values in original series as None.

column “e” of relation “analysis_result” does not exist

connection to postgresql database has been connected successfully.but while executing below query i am getting some kind of error which looks like : column “e” of relation “analysis_result” does not exist LINE 1: INSERT INTO analysis_result(user_id,E,A,C,N,O,total) VALUES … i understand what is the error .i have to put each of E A C N O in quotes but while quoting

discord.py How to make a roll dice command

Hello guys i’m coding a Discord bot in Python and i wanted to code a roll dice command. And i think im doing something wrong. Here is the code: When i type the command and select number 4 my command does works but when i try another number, for an example 6, it doesn’t work. What am i doing wrong?

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