Styling

Legend

axis.plot(x, y, label='line 1')
axis.plot(a, b, label='line 2')

axis.legend(loc='upper right') # google other options, normally dont bother
axis.legend(loc=(1.1, 0.5)) # x and y

Visual Styles

axis.plot(x, y, color='#123abc')

axis.plot(x, y, lw=10) # line width is 10x normal

axis.plot(x, y, ls='--') # line style, '--' '-' '-.' ':'

axis.plot(x, y, marker='o') # x o +

axis.plot(x, y, ms=3) # marker size