Question

出于某种原因，我的open语句中出现语法错误：

def printStatsToFile():
    global dictionary
    statslines = []
    if dictionary=={}:
        createDictionary()
    for n in dictionary:
        statslines.append("Key = " + str(n) + "    Total number of words with " + str(n) + " characters = " + str(len(dictionary[n]))
    open(statsWords.dat, "w").writelines(statslines)
    print "Your stats are now available in statsWords.dat."
    mainFunction()

这是错误：

tog:hw4 lukasolson$ python hw4_lukasolson.py
  File "hw4_lukasolson.py", line 61
    open(statsWords.dat, "w").writelines(statslines)
       ^
SyntaxError: invalid syntax

奇怪的是，当我注释掉部分代码时，一切都运行得很好：

def printStatsToFile():
    statslines = []
    """
    global dictionary
    if dictionary=={}:
        createDictionary()
    for n in dictionary:
        statslines.append("Key = " + str(n) + "    Total number of words with " + str(n) + " characters = " + str(len(dictionary[n]))
    """
    open("statsWords.dat", "w").writelines(statslines)
    print "Your stats are now available in statsWords.dat."
    mainFunction()

我正在运行python 2.7.6，据我所知，我的语法应该是正确的。

tog:hw4 lukasolson$ python
Python 2.7.6rc1 (v2.7.6rc1:4913d0e9be30+, Oct 27 2013, 20:52:11) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>

Answer 1

你在它上面的一行上错过了一个右括号。

Answer 2

您需要将statsWords.dat作为字符串传递。因此，该行应如下所示：

open("statsWords.dat", "w").writelines(statslines)

使用open（）时的Python语法错误

2 个答案: