convert dataframe column to integer code example

Example 1: column dataframe to int

df[[column_name]].astype(int)

Example 2: convert a pandas column to int

# convert Series
my_series = pd.to_numeric(my_series)

# convert column "a" of a DataFrame
df["a"] = pd.to_numeric(df["a"])

Example 3: astype float across columns pandas

cols = df.columns[df.dtypes.eq('object')]