Python：将列表输出到csv时，每个行元素都添加了奇怪的间距

Question

我终于得到了我的python程序，将我想要的内容输出到csv的第1行的每个单元格中，但每个项目之后会出现奇怪的标签或间距

以下是相关代码段：

def createvars(filename, count, varlist):       # Appends each suffix to each variable
    varsuffix = list()
    newvarlist = list()
    iterations = 0

    os.system('cls')
    print 'Variable Creation\n-----------------'
    print 'Selected file: ', filename + '\n'

    try:
        iterations = input('How many iterations of the variables do you need?: ')
    except NameError:   
        print 'Please enter an interger value greater than 0'
        os.system('pause')
        createvars(filename, count, varlist)
    for i in range(iterations):
        varsuffix.append(raw_input('Variable Suffix ' + str(i+1) + ': '))
    newvarlist = ['{}_{}'.format(a, b) for b in varsuffix for a in varlist]

    writecsv(filename, newvarlist)

def writecsv(filename, newvarlist):             # Writes to selected CSV file
    with open(filename+'_output.csv', 'wb') as writefile:
    if writefile.closed:
        print 'ERROR: Failed to open file'
        os.system('pause')
        menu(0)
    contentsWrite = csv.writer(writefile, dialect='excel', delimiter='  ')
    contentsWrite.writerows(newvarlist)
    writefile.close
    print 'File saved as: ' + filename + '_output.csv'

这就是我对输出文件中奇怪间距的意思：

Answer 1

您将分隔符设置为双倍空格：

contentsWrite = csv.writer(writefile, dialect='excel', delimiter='  ')

对于Excel，请不要设置分隔符，或者如果需要制表符而不是逗号，请使用excel-tab dialect。

您也不应该将writer.writerows()与平面列表一起使用;每个字符都写为单个列。最好的情况是，如果您希望newvarlist中的每个元素都是一个单独的行，则只为一列生成每行的单独列表：

contentsWrite.writerows([col] for col in newvarlist)