Answers for "in pandas other NaN what will represent null values"

find nan value in dataframe python

# to mark NaN column as True
df['your column name'].isnull()

handling missing dvalues denoted by a '?' in pandas

# Making a list of missing value typesmissing_values = ["n/a", "na", "--"]df = pd.read_csv("property data.csv", na_values = missing_values)