Sudoku test

#zahlen für zeilen, buchstaben für spalten

square1a=[]
square2a=[]
square3a=[]
square4a=[5]
square5a=[6]
square6a=[]
square7a=[3]
square8a=[9]
square9a=[]

square1b=[4]
square2b=[]
square3b=[]
square4b=[]
square5b=[]
square6b=[7]
square7b=[]
square8b=[]
square9b=[]

square1c=[5]
square2c=[]
square3c=[7]
square4c=[]
square5c=[8]
square6c=[]
square7c=[2]
square8c=[]
square9c=[]

square1d=[7]
square2d=[8]
square3d=[6]
square4d=[9]
square5d=[5]
square6d=[]
square7d=[4]
square8d=[1]
square9d=[]

square1e=[]
square2e=[]
square3e=[4]
square4e=[6]
square5e=[]
square6e=[]
square7e=[]
square8e=[]
square9e=[]

square1f=[]
square2f=[5]
square3f=[]
square4f=[4]
square5f=[1]
square6f=[]
square7f=[]
square8f=[]
square9f=[3]

square1g=[]
square2g=[4]
square3g=[]
square4g=[]
square5g=[]
square6g=[]
square7g=[1]
square8g=[]
square9g=[8]

square1h=[6]
square2h=[]
square3h=[]
square4h=[]
square5h=[3]
square6h=[9]
square7h=[]
square8h=[]
square9h=[]

square1i=[1]
square2i=[]
square3i=[2]
square4i=[]
square5i=[]
square6i=[]
square7i=[]
square8i=[6]
square9i=[]



row1=[square1a,square2a,square3a,square4a,square5a,square6a,square7a,square8a,square9a]
row2=[square1b,square2b,square3b,square4b,square5b,square6b,square7b,square8b,square9b]
row3=[square1c,square2c,square3c,square4c,square5c,square6c,square7c,square8c,square9c]
row4=[square1d,square2d,square3d,square4d,square5d,square6d,square7d,square8d,square9d]
row5=[square1e,square2e,square3e,square4e,square5e,square6e,square7e,square8e,square9e]
row6=[square1f,square2f,square3f,square4f,square5f,square6f,square7f,square8f,square9f]
row7=[square1g,square2g,square3g,square4g,square5g,square6g,square7g,square8g,square9g]
row8=[square1h,square2h,square3h,square4h,square5h,square6h,square7h,square8h,square9h]
row9=[square1i,square2i,square3i,square4i,square5i,square6i,square7i,square8i,square9i]

line1=[square1a,square1b,square1c,square1d,square1e,square1f,square1g,square1h,square1i]
line2=[square2a,square2b,square2c,square2d,square2e,square2f,square2g,square2h,square2i]
line3=[square3a,square3b,square3c,square3d,square3e,square3f,square3g,square3h,square3i]
line4=[square4a,square4b,square4c,square4d,square4e,square4f,square4g,square4h,square4i]
line5=[square5a,square5b,square5c,square5d,square5e,square5f,square5g,square5h,square5i]
line6=[square6a,square6b,square6c,square6d,square6e,square6f,square6g,square6h,square6i]
line7=[square7a,square7b,square7c,square7d,square7e,square7f,square7g,square7h,square7i]
line8=[square8a,square8b,square8c,square8d,square8e,square8f,square8g,square8h,square8i]
line9=[square9a,square9b,square9c,square9d,square9e,square9f,square9g,square9h,square9i]

block1=[square1a,square1b,square1c,square2a,square2b,square2c,square3a,square3b,square3c]
block2=[square1d,square1e,square1f,square2d,square2e,square2f,square3d,square3e,square3f]
block3=[square1g,square1h,square1i,square2g,square2h,square2i,square3g,square3h,square3i]
block4=[square4a,square4b,square4c,square5a,square5b,square5c,square6a,square6b,square6c]
block5=[square4d,square4e,square4f,square5d,square5e,square5f,square6d,square6e,square6f]
block6=[square4g,square4h,square4i,square5g,square5h,square5i,square6g,square6h,square6i]
block7=[square7a,square7b,square7c,square8a,square8b,square8c,square9a,square9b,square9c]
block8=[square7d,square7e,square7f,square8d,square8e,square8f,square9d,square9e,square9f]
block9=[square7g,square7h,square7i,square8g,square8h,square8i,square9g,square9h,square9i]

sudoku=[row1,row2,row3,row4,row5,row6,row7,row8,row9]

allSudoku=[row1,row2,row3,row4,row5,row6,row7,row8,row9,line1,line2,line3,line4,line5,line6,line7,line8,line9,block1,block2,block3,block4,block5,block6,block7,block8,block9]

def checkSquare(square):
    if square[1]:
        done=true

    else:
        done=false

    return(done)




def completeSquare(square):
    if square[1]:
        done=true

    elif len(square[0])==(1):
        done=true
        square.append(done)

    else:
        print("failed to complete square content of {}".format(square))
        done=false

    return(done)



#entfernt elemente einer liste(subtract) von einer anderen(list1)
def listSubtract(subtract,list1):
    result=list1
    for a in range (len(subtract)):
        if subtract[a] in list1:
            result=result.remove(subtract[a])

    return (result)



#"row"kann jede liste, die neun Felder umfasst und in der die zahlen von eins bis neun vorkommen sollen sein (also Zeilen, Spalten oder Blöcke).
def checkRow(row):
    notAdd=[]
    for a in row:
#notAdd ist die liste die die in dieser Reihe unmöglichen Zahlen enthält
        if checkSquare(row[a]):
            notAdd.append(row[a[0]])
#possible ist die Liste die alle möglichen zahlen eines feldes speichert
    for b in row:
        if not row[b[1]]:
            if row[b]==[]:
               possible=[1,2,3,4,5,6,7,8,9]
            else:
                possible=[row[b]]
            listSubtract(notAdd,possible)
            row[b]=possible

    return(none)


def checkForComplete(sudoku):
    completeness=0
    for x in range(len(sudoku)):
        print (x)
        for y in range(len(sudoku[x])):
            if completeSquare(sudoku[x[y]]):
                completeness=completeness+1
    return(completeness)


while checkForComplete(sudoku)<81:
    for z in range(len(allSudoku)):
        checkRow(allSudoku[z])