pandas check if row contains string code example

Example 1: dataframe column contains string

df[df['A'].str.contains("hello")]

Example 2: filter by row contains pandas

In [3]: df[df['ids'].str.contains("ball")]  # removes all rows where 'ball' not in row['ids']
Out[3]:
     ids  vals
0  aball     1
1  bball     2
3  fball     4