How to remove a list item from another list based on an element's string

December 2, 2021

I have a list like this:

watchlist = [['NSE:SHIL',1],['NSE:SOLARA',1],['NSE:LINCOLN',1],['NSE:KITEX',1],['NSE:PPL',1],['NSE:PHILIPCARB',1],['NSE:SARLAPOLY',1],['NSE:PANAMAPET',1],['NSE:RPSGVENT',1]]

I want to remove the element list which contains the string ‘SOLARA’. New watchlist should be like this:

watchlist = [['NSE:SHIL',1],['NSE:LINCOLN',1],['NSE:KITEX',1],['NSE:PPL',1],['NSE:PHILIPCARB',1],['NSE:SARLAPOLY',1],['NSE:PANAMAPET',1],['NSE:RPSGVENT',1]]

How do I do that?

thanks in advance

>Solution :

Here’s one way you could do it:

watchlist = [['NSE:SHIL',1],['NSE:SOLARA',1],['NSE:LINCOLN',1],['NSE:KITEX',1],['NSE:PPL',1],['NSE:PHILIPCARB',1],['NSE:SARLAPOLY',1],['NSE:PANAMAPET',1],['NSE:RPSGVENT',1]]

watchlist = [e for e in watchlist if not 'SOLARA' in e[0]]

print(watchlist)