Answers for "convert all numeric columns to int pandas"

column dataframe to int

df[[column_name]].astype(int)

python dataframe get numeric columns

dfnew = df.select_dtypes(include=np.number)

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"])