PyCharm end of statement unexpected

Question

I am running PyCharm version 3.6.6 (I checked with sys.version command) and my interpreter is 3.6. The problem is with all the print function. This is the code for edit distance algorithm my teacher provided for us. We are suppose to just run this code so it should work... Please see the attached image to see the error.

def edit_distance(s1, s2):
m = len(s1) + 1
n = len(s2) + 1

deletes = 1
inserts = 1
substitute = 1

# Initialize the matrix
mTable = {}
for i in range(0, m):
    for j in range(0, n):
        mTable[i, j] = 0

for i in range(0, m):
    # Need to add one line here
    mTable[i,0] = i * deletes

for j in range(0, n):
    # Need to add one line here
    mTable[0, j] = j * inserts

cost = 0

for i in range(1, m):
    for j in range(1, n):
       if(s1[i-1] == s2[j-1]):
           cost = 0
       else:
            mTable[i,j]=min(mTable[i-1,j] + deletes,
            mTable[i, j - 1] + inserts,  # (i,j-1) with insert cost
            mTable[i - 1, j - 1] + cost  # (i-1,j-1) with if match cost=0 else cost=substitude

# Print the edit distance matrix
print("Edit Distance Matrix\n")
print("      ", end= ' ')
for j in range(n-1):
    print("| " + s2[j] + " ", end='')
print("\n")
for i in range(0, m):
    if i == 0:
        print("   ", end='')
    if i > 0:
        print(" " + s1[i - 1] + " ", end='')
    for j in range(0, n):
        print("| " + str(mTable[i, j]) + " ", end='')
    print("\n")

return mTable, mTable[m - 1, n - 1]

def get_edits(s1, s2, mTable, nEditDist):
m = len(s1) + 1
n = len(s2) + 1

i_old = m - 1
j_old = n - 1
i_new = m - 1
j_new = n - 1
sOperation = ""
nIndexOfOperation = nEditDist - 1
sOperationList = {}
for i in range(0, nEditDist - 1):
    sOperationList[i] = ""
while 1:
    nLeft = mTable[i_old, j_old-1]
    nUp   = mTable[i_old-1, j_old]
    nUpLeft = mTable[i_old-1, j_old-1]
    if nUpLeft <= nLeft and nUpLeft <= nUp:
        i_new = i_old - 1
        j_new = j_old - 1
        if mTable[i_old, j_old] > nUpLeft:
            sOperation = "Substitute"                     
            sOperationList[nIndexOfOperation] = sOperation
            nIndexOfOperation -= 1
    elif nLeft <= nUpLeft and nLeft <= nUp:
        i_new = i_old
        j_new = j_old - 1
        if mTable[i_old, j_old] > nLeft:
            sOperation = "Insert"                     
            sOperationList[nIndexOfOperation] = sOperation
            nIndexOfOperation -= 1
    elif nUp <= nUpLeft and nUp <= nLeft:
        i_new = i_old - 1
        j_new = j_old
        if mTable[i_old, j_old] > nUp:
            sOperation = "Delete"                  
            sOperationList[nIndexOfOperation] = sOperation
            nIndexOfOperation -= 1
    i_old = i_new
    j_old = j_new
    if i_old == 0 and j_old == 0:
        break

print("the sequence of the edits:")
for i in range(0, nEditDist):
    print("Step " + str(i + 1) + " : " + sOperationList[i])


if __name__ == "__main__":
# Example 1
sString1 = "kitten"
sString2 = "sitting"
# Example 2
# sString1 = "GAMBOL"
# sString2 = "GUMBO"
mTable, nEditDist = edit_distance(sString1, sString2)
print("Edit distance is " + str(nEditDist))
get_edits(sString1, sString2, mTable, nEditDist)

Here's a picture of the errors:

I tried to include 'from future import print_function' at the top but the error won't go away.

Answer 1

You appear to be missing a closing paren towards the beginning of your code:

mTable[i, j] = min(...
    ...
    ... ) <-- on the third line here