Answers for "count not nan values in dict"

NAN values count python

# (1) Count NaN values under a single DataFrame column:
df['column name'].isna().sum()

#(2) Count NaN values under an entire DataFrame:
df.isna().sum().sum()

#(3) Count NaN values across a single DataFrame row:
df.loc[[index value]].isna().sum().sum()

how to find total no of nan values in pandas

# will give count of nan values of every column.
df.isna().sum()