[Python 2.7] 2d str matrix table-str generation

matrix-table-printing.py

# Licensed under "The Unlicense"
# Created by CONATH on 03 Feb 2017

def repeatStr(string, times):
    ausgabe = str(string)
    for i in range(times):
        ausgabe += string
    return ausgabe

def maxLength(matrix):
    imaxLength = 0
    for row in range(len(matrix)):
        for column in range(len(matrix[row])):
            vergl = len(matrix[row][column])
            if vergl > imaxLength:
                imaxLength = vergl
    
    return imaxLength

def tableStrWith(matrix, noLeadingBlank = False):
    numRows = len(matrix)
    numCols = len(matrix[0])
    cellLength = maxLength(matrix)
    tableStr = " " if noLeadingBlank else " "+repeatStr(" ", cellLength)
    print("Drucke Adjazenzmatrix fuer {} Knoten!", len(matrix))
    for column in range(numCols):
        tableStr += "| " + matrix[0][column] + repeatStr(" ", cellLength-len(matrix[0][column]))
    
    for row in range(numRows):
        currentRow = " " if noLeadingBlank else " "+matrix[row][0] + repeatStr(" ", cellLength-len(matrix[row][0]))
        for column in range(numCols):
            wert = matrix[row][column];
            currentRow += "| "+ wert + repeatStr(" ", cellLength-len(wert));
        
        tableStr += "\n" if noLeadingBlank else "\n"+repeatStr("-", cellLength);
        for column in range(numCols):
            tableStr += "-+"+repeatStr("-", cellLength);
        tableStr += "\n"+currentRow;
    
    return tableStr

matrix = [["Produkt", "Preis"]]
matrix.append(["Deo", "2,99"])
matrix.append(["Shampoo", "3,29"])

print(matrix)
print(tableStrWith(matrix, True))
print(tableStrWith(matrix, False))