関連ワード:  how to draw a line plot in python    how to draw a line graph in python    how to draw a line chart in python    how to draw a line plot in matplotlib    how to draw a line in scatter plot in python    how to draw a line graph in matplotlib    how to draw multiple line graph in python    how to make a line graph in python matplotlib    how to draw a vertical line in python plot    how to draw a horizontal line in python plot