Can't find Cause of Traceback Error

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It seems like you are working in the notebook environment in sage. Perhaps you are getting the following output

Traceback (click to the left of this block for traceback)
...
SyntaxError: invalid syntax

And if you click to the left of the block (as indicated above) you should see something like

Traceback (most recent call last):            if sums[i-1] != sums[i] and sums[i] == sums[i+1]: ''' Finding solutions'''
  File "", line 1, in <module>

  File "/tmp/tmp_QhfdJ/___code___.py", line 5
    crev = [] ''' Calculating Cube Roots'''
                                          ^
SyntaxError: invalid syntax

It seems that the trouble is being caused by the use of triple quotes, the hash character (#) is recommended for comments.

def Ramanujan(t):
    cubes = [x**3 for x in range(1,t/10)]
    crev = [] # Calculating Cube Roots
    for x,x3 in enumerate(cubes):
        crev[x3] = x + 1
        sums = sorted(x + y for x in cubes for y in cubes if y < x) # Organizing Data
        for i in range(1, len(sums)-1):
            if sums[i-1] != sums[i] and sums[i] == sums[i+1]: # Finding solutions
                if sums[i]<=t: # Limiting how many solutions printed.
                    print "%10d"%(sums[i]) # Printing desired outputs
                else:
                    break # Ending the function.

The code seems to be broken, Ramanujan(20) yields an error.