.query() 用于否定 str.contains()？

Question

I want to filter out every row where a column has a specific string.

If I want to filter every row that contains that string:

df.query("column_name.str.contains('stringtosearch')")

But if I want to use .query() to filter out every row containing that string I need to negate that str.contains() .

I do not want to use df[~d["column_name"].str.contains("stringtosearch")] because I want a unified syntax and I use .query() everywhere else in my code.

How can I do this with .query() ?

Answer 1

Simply with the ~ operator (or not ), as demonstrated in the query docs in indexing .

df.query("~column_name.str.contains('stringtosearch')")