23 окт. 2014 г. · According to this answer you can use: df.query('value < 10 | value.isnull()', engine='python'). I verified that it works.

3 сент. 2017 г. · I have pandas dataframe that I want to execute on it query function with isnull() or not isnull() condition like that:

10 мар. 2024 г. · Receiving the same error while testing this with Python 3.10 ( 3.10.9 to be exact) and Pandas 2.2.1 . Somewhat surprising, then, that @ewz93 ...

16 июн. 2016 г. · I am fetching the rows with some values from a pandas dataframe with the following code. I need to convert this code to pandas.query().

1 мая 2019 г. · You can use the 'index' keyword for this: temp_df.query('index == index or index != index'). This will get you both null & non-null indices ...

2 февр. 2018 г. · You can use behaviour NaN - np.nan == np.nan is False , so np.nan != np.nan is True : df = pd.DataFrame({'styleName':list('abcdef'), ...

23 окт. 2016 г. · You can use this hackish method: df.query('A < inf') Luckily the name inf is defined and comparisons with it only returns numbers.

25 авг. 2015 г. · I have a dataframe with columns of different dtypes and I need to use pandas.query to filter the columns. Columns can include missing values: NaN, None and NaT.

25 мар. 2021 г. · I am trying to filter my dataframe with the condition that it should filter the rows based on column condition. so i want to filter all the rows which doesn't ...

18 дек. 2019 г. · Given a pandas dataframe, how should I do sth like the following? df.eval('B * sign(A)') df.query('A.notnull()').