Change matplotlib grid color with rcParams

Question

How is this done? mpl.rcParams['grid.color'] doesn't work.

Default is white:

import matplotlib.pyplot as plt
import matplotlib as mpl

plt.plot([1, 2])

And changing with plt.grid works fine:

plt.plot([1, 2])
plt.grid(c='black')

But not rcParams:

mpl.rcParams['grid.color'] = 'black'
plt.plot([1, 2])

Answer 1

You would first want to set the grid on, then determine its color

mpl.rcParams.update({"axes.grid" : True, "grid.color": "black"})

Answer 2

You should add plt.grid() in your second example.

Like this :

import matplotlib.pyplot as plt
import matplotlib as mpl

plt.plot([1, 2])
mpl.rcParams['grid.color'] = 'black'
plt.grid()

And further idea: You can also try to use seaborn, it is build on top of matplotlib and has really nice formatations:

import matplotlib.pyplot as plt
import seaborn as sns
sns.set()

plt.plot([1, 2])