df count missing values

In [5]: df = pd.DataFrame({'a':[1,2,np.nan], 'b':[np.nan,1,np.nan]})

In [6]: df.isna().sum()
Out[6]:
a    1
b    2
dtype: int64

Submit

how to make a class in python	ModuleNotFoundError: No module named pip._internal	httpie on windows
python read json file	pandas create new column	python write to file
what is the use of class in python	install opencv python	rename columns pandas
rename columns in python	pip upgrade command	how to upgrade pip
command to upgrade the PIP	download pip install	command to update pip
how to upgrade pip in cmd	how to check python version	python iterate dictionary key value
python install pip	windows python pip upgrade	python virtual environment
how to update pip in python	how to read a file in python	how to update pip python
how to replace nan with 0 in pandas	check package version python	streamlit ssl error
networkx remove nodes with degree	get wd in python	find text between two strings regex python
create zero array in python	upgrade python version mc	python get image dimensions
pandas drop empty columns	summation django queryset	oddlyspecific09123890183019283
convert a dictionary into dataframe python	write dataframe to csv python	pygame draw circle
check value vowel user input python	remove commas from string python	No module named sklearn.cross_validation
pandas version check in python	convert column string to int pandas	python italic
python - prime number generator	.annotate unique distinct	current datetime pandas