如何获取多个动态文本文件的内容并将其存储在一个文本文件和mysql-Python 2.7中？

我的导入文件夹中有多个文本文件，其中，我希望读取每个文本文件的所有行，并仅将其存储在一个文本文件中。我将测试所有的行是否都被python读取，最终我将把它存储在mysql数据库中。如何使用fileinput实现这一点？我似乎无法启动，我的文件是动态的：以下是我的代码：

for i in range(1, 4):

    dateNow = datetime.datetime.today().date()
    strNow  = dateNow.strftime('%Y%m%d') + ".Dat"
    cstrNow  = pathA + str(i) + "\\" + strNow

    dateYesterday = datetime.datetime.today().date() - timedelta(days = 1)
    strYesterday  = dateYesterday.strftime('%Y%m%d') + ".Dat"
    cstrYesterday = pathA + str(i) + "\\" + strYesterday 

    try:
        with open(cstrNow):
            shutil.copy(cstrNow, pathImport + "\A" + str(i) + "_" + strNow)
            pathNow = pathImport + "\A" + str(i) + "_" + strNow
    except IOError:
        print "No Dat file: " + pathImport + "\A" + str(i) + "_" + strNow

    try:
        with open(cstrYesterday):
            shutil.copy(cstrYesterday, pathImport + "\A" + str(i) + "_" + strYesterday)
            pathYesterday = pathImport + "\A" + str(i) + "_" + strYesterday
    except IOError:
        print "No Dat file: " + pathImport + "\A" + str(i) + "_" + strYesterday


    for line in fileinput.input(pathNow):
        print line
    for line in fileinput.input(pathYesterday):
        print line

我用这个做了测试，但是失败了

  with fileinput.input(files=(pathNow, pathYesterday)) as f:
       for line in f:
          //HOW TO OUTPUT TO TEXT FILE?

现在我对mysql没有问题，但是如果你能给我指出一个好的教程，现在我读了这篇，看起来不错：

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编辑：我正在使用Python2.7，如何获取多个动态文本文件的内容并将其存储在一个文本文件和mysql中？

我希望这将帮助某人

# READ ALL DAT FILE IN PATHIMPORT AND COMBINE INTO ONE TEXT FILE
strToday =  dateToday()   
read_files = glob.glob(pathImport + "\\" + "*.Dat")
with open("C:/swipeimport/" + "M_" + strToday + ".txt", "wb") as outfile:
    for x in read_files:
        with open(x, "rb") as infile:
            outfile.write(infile.read())    

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确切的问题是什么？我编辑了上面的问题。问题是什么？