Get rows in numpy array where column contains string

Question

I have a numpy array with 4 columns. The first column is text.

I want to retrieve every row in the array where the first column contains a substring.

Example: if the string I'm searching for is "table", find and return all rows in the numpy array whose first column contains "table."

I've tried the following:

rows = nparray[searchString in nparray[:,0]]

but that doesn't seem to work

Answer 1

Given a pandas DataFrame df , this will return all rows where searchString is a substring of the value in the column column :

searchString = "table"

df.loc[df['column'].str.contains(searchString, regex=False)]