Give color to the line plot according to the third variable

Question

I am trying to plot the line plots using for loop, I am giving the overview of my code structure here

epi_dist=[]
for file in glob.glob('*extension'):  
    dist=file.distn()
    epi_dist.append(dist)
    x=[]
    y=[]
    for i  in range(1,1000,2):
        a,b=function(file,i)
        x.append(a)
        y.append(b)
        
    plt.plot(x,y,c=epi_dist)

plt.show()

I wanted to give the color for the line plot according to the variable epi_dist. x and y have the identical number of values.

Looking forward to your valuable suggestions