I have a simple plot with several sets of points and lines connecting each set. I want the points to be plotted on top of the lines (so that the line doesn't show inside the point). Regardless of order of the `plot`

and `scatter`

calls, this plot comes out the same, and not as I'd like. Is there a simple way to do it?

```
import math
import matplotlib.pyplot as plt
def poisson(m):
def f(k):
e = math.e**(-m)
f = math.factorial(k)
g = m**k
return g*e/f
return f
R = range(20)
L = list()
means = (1,4,10)
for m in means:
f = poisson(m)
L.append([f(k) for k in R])
colors = ['r','b','purple']
for c,P in zip(colors,L):
plt.plot(R,P,color='0.2',lw=1.5)
plt.scatter(R,P,s=150,color=c)
ax = plt.axes()
ax.set_xlim(-0.5,20)
ax.set_ylim(-0.01,0.4)
plt.savefig('example.png')
```

You need to set the Z-order.

```
plt.plot(R,P,color='0.2',lw=1.5, zorder=1)
plt.scatter(R,P,s=150,color=c, zorder=2)
```

Check out this example. http://matplotlib.sourceforge.net/examples/pylab_examples/zorder_demo.html

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