Help me resolve this error

#1

15.15

Oops, try again. Your code did not run to end. Check the console window for errors!

Console:
File "python", line 8
elif len(x) % 2 == 0:
^
SyntaxError: invalid syntax

I think I'm on the right track, but I cannot resolve the above error. What is invalid about this syntax?

``````def median(x):
x.sort()
if len(x) == 1:
return x[0]
elif len(x) % 2 != 0:
m = len(x)/2
return m[x]
elif len(x) % 2 == 0:
m = len(x)/2
n = (len(x)/2) - 1
return (m[x] + n[x])/2.0``````

#2

``````if len(x) == 1:
return x[0]
elif len(x) % 2 != 0:
m = len(x)/2
return m[x] #HERE IS BAD INDENTATION
elif len(x) % 2 == 0:``````

It is indented wrong, so that the if-statement stops, and you cannot add an elif.

#3

``````def median(x):
x.sort()
if len(x) == 1:
return x[0]
elif len(x) % 2 != 0:
m = len(x)/2
return m[x]   <===you want to get Element-m from list-x !!!!!
+ indentation error !!
elif len(x) % 2 == 0:
m = len(x)/2
n = (len(x)/2) - 1
return (m[x] + n[x])/2.0  <===you want to get Element-m from list-x !!!!
+ indentation error !!``````

try it like

``````def median(x):
x.sort()
if len(x) == 1:
return x[0]
elif len(x) % 2 != 0:
m = len(x)/2
return x[m]
elif len(x) % 2 == 0:
m = len(x)/2
n = (len(x)/2) - 1
return (x[m] + x[n])/2.0

print median([0,3,4,5,7])
print median([0,3,4,5,7,11])

``````