How to add weights to grid_2d_graph in Python

Question

Can anyone please help how to add weights to 2d_graph in python. My objective is to add a probability to each edge in python and simulate and check whether there is connection still exists between two nodes.

Step 1 For Example I drawn a 10X10 Graph using networkx.

G = nx.grid_2d_graph(10,10)
plt.figure(figsize=(5,5))
pos = {(x,y):(y,-x) for x,y in G.nodes()}
nx.draw(G, pos=pos, node_color='pink', 
        with_labels=True, node_size=600)

Step 2 I have removed some edges using following code manually.

G.remove_edge((9,0),(9,1))
G.remove_edge((8,1),(7,1))
G.remove_edge((6,3),(5,3))
G.remove_edge((4,4),(3,4))
G.remove_edge((3,4),(3,5))
G.remove_edge((3,6),(2,6))
G.remove_edge((2,7),(1,7))
G.remove_edge((1,7),(1,8))
G.remove_edge((1,8),(1,9))
G.remove_edge((1,9),(0,9))
G.remove_edge((8,1),(9,1))
G.remove_edge((9,1),(9,2))
G.remove_edge((0,8),(0,9))
G.remove_edge((1,7),(0,7))
G.remove_edge((3,5),(2,5))
G.remove_edge((3,2),(3,3))
G.remove_edge((8,0),(7,0))
G.remove_edge((7,2),(6,2))
G.remove_edge((2,2),(1,2))
G.remove_edge((0,2),(0,3))
G.remove_edge((0,3),(0,4))
G.remove_edge((1,2),(1,3))
G.remove_edge((1,3),(0,3))
nx.draw(G, pos=pos, node_color='pink', 
        with_labels=True, node_size=600)

Step 3: My objective is to add a probability to all the edges and see which one is still intact and not intact. Instead of Step 2 I want to automate using Step 3 by fixing probability to each edge and simulate it to check whether there is still connection between two nodes.