Question

我正在尝试使用xlsxwriter创建一个excel工作簿，但是当我尝试做workbook.close()时，出现以下异常：

Traceback (most recent call last):
  File "/usr/local/bin/fab", line 11, in <module>
    sys.exit(program.run())
  File "/usr/local/lib/python2.7/site-packages/invoke/program.py", line 363, in run
    self.execute()
  File "/usr/local/lib/python2.7/site-packages/invoke/program.py", line 532, in execute
    executor.execute(*self.tasks)
  File "/usr/local/lib/python2.7/site-packages/invoke/executor.py", line 129, in execute
    result = call.task(*args, **call.kwargs)
  File "/usr/local/lib/python2.7/site-packages/invoke/tasks.py", line 128, in __call__
    result = self.body(*args, **kwargs)
  File "/app/fabfile.py", line 168, in test2
    workbook.close()
  File "/usr/local/lib/python2.7/site-packages/xlsxwriter/workbook.py", line 304, in close
    self._store_workbook()
  File "/usr/local/lib/python2.7/site-packages/xlsxwriter/workbook.py", line 676, in _store_workbook
    xlsx_file.write(os_filename, xml_filename)
  File "/usr/lib64/python2.7/zipfile.py", line 1146, in write
    zinfo.header_offset = self.fp.tell()    # Start of header bytes
AttributeError: 'tuple' object has no attribute 'tell'
Exception AttributeError: "'tuple' object has no attribute 'tell'" in <bound method ZipFile.__del__ of <zipfile.ZipFile object at 0x7f87fcffa410>> ignored

我要查询数据库，然后创建3张纸并在其中填充表格，这是代码：

def summary_main():
        start_time = time.time()

        print "starting job}"
        ##setup db and extract summaries
        files_last_date = input("date in yyyy-mm-dd")
        sql_h = SqlHelper()
        date = datetime.today().strftime("%Y-%m-%d")
        file_name=('/app/SUMMARY_',date,'.xlsx')
        print "file name created = ",file_name
        workbook = xlsxwriter.Workbook(file_name)
        get_uploaded_files(workbook,files_last_date,sql_h)

        # getting exception in the following line
        workbook.close()
        print "\n\nSummary has been saved, workbook closed"

上面的代码在我的本地计算机上的python3中可以正常工作，但是在服务器上，我们尝试在python2上运行相同的代码，这是代码无法正常工作的原因吗？在最后一行抛出该异常，这意味着直到那时为止都没有兼容性问题。在get_uploaded_files函数中，我查询数据库并将数据写入工作表，如下所示：

def get_uploaded_files(wb,dt,sql_h):
    sheet = wb.add_worksheet("Uploaded Files")
    data_set = sql_h.getData(dt,1)
    header = ["File ID", "First Name", "Last Name", "File Name", "Comments"]
    sql_h.parse_sql_data(sheet,header,data_set,wb)

以下2个函数在一个名为SqlHelper_py2.py的单独文件中定义

def getData(self,dt,case):
        print(self.conn)
        cur=self.conn.cursor()
        data_set=""
        if case==1:
            cur.execute(self.sql_uploaded_file.replace("%s",str(dt)))
            data_set=cur.fetchall()
        cur.close()
        return data_set


def parse_sql_data(self,sheet,header,data_set,workbook):
        format_bold=workbook.add_format({'bold': True,'border':1})
        format_border=workbook.add_format({'border':1})
        col = 0
        count=0
        dict_max={0:0}
        for h in header:
            sheet.write(0,col,h,format_bold)
            col+=1
            dict_max[count]=len(str(h))
            count+=1
        row = 1
        for data in data_set:
            col=0
            for d in data:
                if(dict_max[col] is not None and len(str(d))>dict_max[col]):
                    dict_max[col]=len(str(d))
                if("datetime.datetime" not in str(type(d))): 
                    sheet.write(row,col,d,format_border)
                col+=1
            row+=1
        for key in dict_max: 
            sheet.set_column(key,key,dict_max[key]+5)

Answer 1

上面的代码在我的本地计算机上的python3中完全可以正常工作

我很难相信，因为您使用了print语句，这将在Python 3上引起语法错误。无论如何，回到您的主要问题：

AttributeError：“元组”对象没有属性“ tell”

tell是一种处理文件对象的方法。 xlswriter不知何故在期望文件对象的地方持有一个元组。我们在您的代码中看到任何可疑的元组了吗？是的：

    file_name=('/app/SUMMARY_',date,'.xlsx')
    workbook = xlsxwriter.Workbook(file_name)

您的file_name不是字符串，而是字符串的元组。 xlsxwriter.Workbook需要一个字符串或一个文件对象。如果看到您没有传递字符串，则认为它必须是文件对象。

要解决此问题，请将文件名的各个部分连接到一个实际的字符串中：

    file_name = ''.join('/app/SUMMARY_',date,'.xlsx')

无法在xlsxwriter中关闭工作表

1 个答案: