style_matplotlib_03.py

#Data to plot:
x=np.linspace(1,12,12)
y=[341,657,424,363,123,544,176,566,737,861,651,719]

#Canvas
fig,ax = plt.subplots(1,1,figsize=(13,7.5),dpi=100)

#Chart
ax.plot(x,y)

#Attributes axes
ax.set_xlabel("Months")
ax.set_ylabel("Random variable")
ax.spines['bottom'].set_linestyle("--")
ax.spines['bottom'].set_linewidth(1)
ax.spines["bottom"].set_color('#404040')
ax.set_ylim(0,1000)

#Attributes plot
plt.locator_params(axis='y', nbins=4)

plt.suptitle("Lorem ipsum dolor sit amet")
plt.show()