openpyxl,xlrd,win32com,wxpython,logging

目录

• 一. openpyxl常用操作总结
• 二. xlrd常用操作总结
• 三. win32com常用操作总结
• 四. 自定义异常
• 五. 判断中文
• 六. Excel数字字母转换
• 七. 使用wxpython进行GUI编程
• 八. python日志配置

一. openpyxl常用操作总结

官方文档: https://openpyxl.readthedocs.io/en/stable/tutorial.html

import openpyxl

def read_excel(filepath):
    # 使用openpyxl.load_workbook()打开现有工作簿
    wb = openpyxl.load_workbook(filepath, read_only=True)
    ws = wb.active	# 获取第一个sheet
    row = ws.max_row	# 获取最大行
    col = ws.max_column	# 获取最大列

    li = []
    for row in ws.iter_rows(min_row=2, max_row=row, min_col=1, max_col=col):
        li2 = []
        for cell in row:
            li2.append(cell.value)
        li.append((li2[5], li2[15], li2[16], li2[17])

    dic = {}
    for i in range(1, len(li)):
    	if li[i-1][0] == li[i][0]:
        	if not dic.get(li[i-1][0], ''):
            	dic.setdefault(li[i - 1][0], []).append(li[i-1])
			dic[li[i][0]].append(li[i])
    return dic

二. xlrd常用操作总结

import xlrd

def read_excel(filepath):
	wb = xlrd.open_workbook(filepath)
    ws = wb.sheet_by_index(0)	# 获取第一个sheet
    row = ws.nrows	# 获取最大行
    col = ws.ncols	# 获取最大列
    
    li = []
    for rowx in range(1, row):
        li2 = []
        for colx in range(0, col):
            li2.append(ws.cell_value(rowx, colx))
        li.append((li2[5], li2[15], li2[16], li2[17]))
        
    dic = {}
    for i in range(1, len(li)):
        if li[i - 1][0] == li[i][0]:
            if not dic.get(li[i - 1][0], ''):
                dic.setdefault(li[i - 1][0], []).append(li[i - 1])
            dic[li[i][0]].append(li[i])
    return dic

三. win32com常用操作总结

import os
import win32.client as win32

class ReadExcel:
    def __init__(self, filepath):
        self.xlApp = win32.gencache.EnsureDispatch('Excel.Application')
        self.xlApp.Visible = 0
        # self.xlApp.DisplayAlerts = 0
        
        self.filename = filename
        self.xlBook = self.xlApp.Workbooks.Open(filepath)
        self.sheet = self.xlBook.Worksheets(1)
        
        self.nrows = self.sheet.UsedRange.Rows.Count	# 最大行
        self.ncols = self.sheet.UsedRange.Columns.Count	# 最大列
        
    def close(self):
        self.xlApp.Application.Quit()
    
    def getCell(self, row, col):
        return self.sheet.Cells(row, col).Value
    
    def getRange(self, row1, col1, row2, col2):
        return self.sheet.Range(self.sheet.Cells(row1, col1), self.sheet.Cells(row2, col2)).Value

    
def get_excel_value(filepath):
	excel = ReadExcel(filepath)
    li = []
    for row in range(1, excel.nrows + 1):
        tb_name = excel.getCell(row, 6)
       	field_en = excel.getCell(row, 16)
        field_zh = excel.getCell(row, 17)
        field_type = excel.getCell(row, 18)
        li.append((tb_name, field_en, field_zh, field_type))
    
    dic = {}
    for i in range(1, len(li)):
        if li[i - 1][0] == li[i][0]:
            if not dic.get(li[i - 1][0], ''):
                dic.setdefault(li[i - 1][0], []).append(li[i - 1])
            dic[li[i][0]].append(li[i])
    return dic

四. 自定义异常

class CustomException(Exception):
    '''自定义异常'''

    def __init__(self, msg):
        Exception.__init__(self, msg)
        self.msg = msg

五. 判断中文

def is_chinese(word):
    for ch in word:
        if 'u4e00' <= ch <= 'u9fff':
            return True
    return False

六. Excel数字字母转换

def alpha2num(alpha):
    if type(alpha) is not str:
        return alpha
    col = 0
    power = 1
    for i in range(len(alpha) - 1, -1, -1):
        ch = alpha[i]
        col += (ord(ch) - ord('A') + 1) * power
        power *= 26
    return col


def num2alpha(num):
    if type(num) != int:
        return num
    num = num - 1
    if num > 25:
        ch1 = chr(num % 26 + 65)
        ch2 = chr(num // 26 + 64)
        return ch2 + ch1
    else:
        return chr(num % 26 + 65)


if __name__ == '__main__':
    print(alpha2num('A'))
    print(num2alpha(1))

七. 使用wxpython进行GUI编程

import wx
import os
from tools.converter import MyScript


wildcard = u"Excel文件 (*.xls)|*.xls|" 
           u"Excel文件 (*.xlsx)|*.xlsx|" 
           u"Excel文件 (*.xlsm)|*.xlsm|" 
           u"Excel文件 (*.xltx)|*.xltx|" 
           u"Excel文件 (*.xltm)|*.xltm|" 
           u"Excel文件 (*.xlsb)|*.xlsb|" 
           u"Excel文件 (*.xlam)|*.xlam"
        

class MyFileDialog(wx.Frame):
    """文件选择，保存"""

    # ----------------------------------------------------------------------
    def __init__(self):
        """Constructor"""
        wx.Frame.__init__(self, None, -1, 'xml转sql和sh', size=(600, 500))
        self.filepath = ''
        self.savepath = ''

        wx.StaticText(self, -1, '接口单元:', (20, 25))
        self.interface = wx.TextCtrl(self, pos=(75, 20))

        self.btnChoose = wx.Button(self, -1, u"选择文件", (75, 100))
        self.Bind(wx.EVT_BUTTON, self.OnBtnChoose, self.btnChoose)

        self.btnSave = wx.Button(self, -1, u"保存文件", (75, 140))
        self.Bind(wx.EVT_BUTTON, self.OnBtnSave, self.btnSave)

        self.btnSubmit = wx.Button(self, -1, u"确认转换", (75, 180))
        self.Bind(wx.EVT_BUTTON, self.OnBtnSubmit, self.btnSubmit)

    def OnBtnChoose(self, event):
        '''选择文件'''
        dlg = wx.FileDialog(self, message=u"选择文件",
                            defaultDir=os.getcwd(),
                            defaultFile="",
                            wildcard=wildcard,
                            style=wx.FD_OPEN | wx.FD_MULTIPLE | wx.FD_CHANGE_DIR)

        if dlg.ShowModal() == wx.ID_OK:
            self.filepath = dlg.GetPath()
        dlg.Destroy()

    def OnBtnSave(self, event):
        '''保存文件'''
        dlg = wx.DirDialog(self, message=u"保存文件",
                           style=wx.DD_DEFAULT_STYLE)
        if dlg.ShowModal() == wx.ID_OK:
            self.savepath = dlg.GetPath()
        dlg.Destroy()

    def OnBtnSubmit(self, event):
        '''确认转换'''

        if not self.filepath:
            msg = '请选择您要转换的文件'
            dlg = ErrorDialog(None, -1, msg)
            dlg.ShowModal()
            dlg.Destroy()

        if not self.savepath:
            msg = '请选择保存路径'
            dlg = ErrorDialog(None, -1, msg)
            dlg.ShowModal()
            dlg.Destroy()

        if not self.interface.GetValue():
            msg = '接口单元不能为空'
            dlg = ErrorDialog(None, -1, msg)
            dlg.ShowModal()
            dlg.Destroy()

        if self.filepath and self.savepath and self.interface.GetValue():

            filepath = self.filepath
            savepath = self.savepath
            interface = self.interface.GetValue()

            logger.info(f'interface: {interface}')
            logger.info(f'filepath: {filepath}')
            logger.info(f'savepath: {savepath}')

            try:
                script = MyScript(filepath, savepath, interface)
                script.get_all_files()

                dlg = ErrorDialog(None, -1, '转换成功!')
                dlg.ShowModal()
                dlg.Destroy()

            except Exception as e:
                logger.warning(str(e), exc_info=True)
                dlg = ErrorDialog(None, -1, '出错了,请查看日志文件')
                dlg.ShowModal()
                dlg.Destroy()


class ErrorDialog(wx.Dialog):
    def __init__(self, parent, id, msg):
        super(ErrorDialog, self).__init__(parent, id, '提示信息', size=(600, 150))
        self.app = wx.GetApp()

        self.msg = msg

        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(wx.StaticText(self, -1, self.msg), 0, wx.ALIGN_CENTER_HORIZONTAL | wx.TOP, border=30)
        self.sizer.Add(wx.Button(self, wx.ID_OK), 0, wx.ALIGN_CENTER_HORIZONTAL | wx.BOTTOM, border=0)
        self.SetSizer(self.sizer)


class App(wx.App):
    def __init__(self):
        wx.App.__init__(self)

    def OnInit(self):
        self.dialog = MyFileDialog()
        self.dialog.Show(True)

        return True
    

if __name__ == '__main__':
    app = App()
    app.MainLoop()

八. python日志配置

import logging

logger = logging.getLogger(__name__)

logger.setLevel(level=logging.INFO)
handler = logging.FileHandler("log.txt")
handler.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)


# 注意: 在logger.xxx()中添加一个exc_info=True参数,就可以将错误信息写入日志文件中了