PySimpleGUI图形界面实例｜PDF表格转换Excel文件

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实例要求：

使用PySimpleGUI做一个把单位考勤系统导出的pdf文件合并输出Excel的应用，故事出自：https://hannyang.blog.csdn.net/article/details/135395946

当时时间紧，没有好好做界面且输出csv文件了事。今天趁周六休息，把代码做一下升级处理，使用库pdfplumber直接遍历多个pdf文件，得到数据后输出Excel文件即可。之前先合并pdf文件再取数，纯粹有点多余。

原始文件：

输出文件：

运行界面：

完整代码：

import os, xlwt, pyperclip, pdfplumber
import datetime as dt
import PySimpleGUI as sg# 全局变量
table_head = '姓名,部门,应到,实到,出勤率,迟到次数,早退次数,加班(分钟)'
path, font = '', ('宋体',12)
date, data = [], []
DateFormat = '    .  . -    .  .  '
ErrMessage = '错误'
SortedType = ["出勤率排序","加班时长排序","迟到次数排序","早退次数排序"]# 定义布局
layout = [[sg.Text("昆山分行考勤表",font=('',16)),sg.Text(pad=(132,10)),sg.Text("请选择考勤文件:",font=font),sg.Input(key="-FOLDER-", enable_events=True, readonly=True,font=font,size=18),sg.FolderBrowse(button_text='...', enable_events=True, initial_folder='./')],[sg.Text("考勤日期：",font=font),sg.Text(DateFormat,key='-DATE-',font=font)],[sg.Table(values='',headings=table_head.split(','),key='-TABLE-',auto_size_columns=False,justification='left',num_rows=10)],[sg.Button("输出Excel文件",size=(12,1),pad=(15,30)),sg.Button(SortedType[0], enable_events=True,size=(10,1),pad=(15,30)),sg.Button(SortedType[1], enable_events=True,size=(10,1),pad=(15,30)),sg.Button(SortedType[2], enable_events=True,size=(10,1),pad=(15,30)),sg.Button(SortedType[3], enable_events=True,size=(10,1),pad=(15,30)),sg.Button("退出",size=(10,1),pad=(15,30))],[sg.StatusBar('',key="-BAR-",font=font,size=92)]
]# 读取pdf表格
def read_table(file):dct = dict()with pdfplumber.open(file) as pdf:for page in pdf.pages:tables = page.extract_tables(table_settings = {})for table in tables:for lst in table:tmp = lst[1:]if not any(tmp): continuetmp = [tmp[0]]+tmp[3:8]+[tmp[-1]]tmp[0] = tmp[0].replace('\n','')tmp[0] = tmp[0].split('/')tmp[0] = tmp[0][-1]if lst[0]=='时间':dct[lst[0]] = tmp[0]else:dct[','.join([lst[0],tmp[0]])] = ','.join(tmp[1:])return dct# 写入xls文件
def write_sheet():global data, date, table_head, ErrMessageif ErrMessage[:2] in ('错误','输出'): returnmyxl = xlwt.Workbook()style = xlwt.easyxf('align: wrap yes; align: horiz center; font: bold yes;') sheet = myxl.add_sheet('考勤表')wcol = [20,40,60,30,30,40,40,40,60]for i,w in enumerate(wcol):sheet.col(i).width = w * 80sheet.write_merge(0,0,0,8,'出勤统计报表',style)style = xlwt.easyxf('borders:top thin; borders:bottom thin; borders:left thin; borders:right thin;') sheet.write_merge(1,1,0,2,'考勤日期：'+date[0])for i,head in enumerate(['序号']+table_head.split(',')):sheet.write(2,i,head,style)for i,row in enumerate(data):for j,col in enumerate([str(i+1)]+row):sheet.write(3+i,j,col,style)for i,t in enumerate(SortedType):if t in ErrMessage:tmp = SortedType[i]breakelse: tmp = ""excel_file = f'昆山分行考勤表{date[0]}({tmp}{strDateTime()}).xls'ErrMessage = f'输出文件为：{excel_file}'try:myxl.save(excel_file)except:ErrMessage = '写入excel文件失败！'finally:pyperclip.copy('\\'.join((os.getcwd(),excel_file)))window['-BAR-'].update(ErrMessage)# 获取当前时间
def strDateTime(diff=0):now = dt.datetime.now()time = now + dt.timedelta(days=diff)    return f'{time.year}{time.month:02}{time.day:02}{time.hour:02}{time.minute:02}{time.second:02}'# 选择并处理文件
def on_text_changed(event, values):global date, data, path, ErrMessagenew_path = values["-FOLDER-"]window["-FOLDER-"].update(new_path.split('/')[-1])if path==new_path: returnelse: path = new_pathpdfs = [f for f in os.listdir(path) if f.endswith('.pdf') and not f.startswith('PDFmerged')]if len(pdfs)==0:ErrMessage = '错误：所选文件夹中没有PDF文件！'window['-BAR-'].update(ErrMessage)window['-DATE-'].update(DateFormat)window['-TABLE-'].update(values=[])returndate, data, sheet = [], [], dict()for pdf in pdfs:dct = read_table('/'.join([path,pdf]))date.append(dct['时间'])sheet.update(dct)if date:window['-DATE-'].update(date[-1])for k,v in sheet.items():if k in ('时间','姓名,所属组织','普通班个人出勤统计报表,'): continuedata.append(','.join([k,v]).split(','))window['-TABLE-'].update(values=data)persons = len(data)departments = len(set([d[1] for d in data]))if len(set(date))!=1:data = []ErrMessage = f'错误：请检查所选文件存在多个时间段：{",".join(set(date))}'else:ErrMessage = f'考勤人数：{persons} / 部门数：{departments}'window['-BAR-'].update(ErrMessage)# 表格排序
def on_table_sorted(event, data):global ErrMessageif not data: returnslist = ['x[-4][:-1]', 'x[-1]', 'x[-3]', 'x[-2]']style = slist[SortedType.index(event)]data = sorted(data, key=lambda x: float(eval(style)), reverse=True)window['-TABLE-'].update(values=data)ErrMessage = f'已按{event}更新！'window['-BAR-'].update(ErrMessage)# 创建窗口
window = sg.Window("汇总考勤表", layout, finalize=True)# 事件循环
while True:event, values = window.read()if event == sg.WINDOW_CLOSED or event == "退出":breakelif event == "-FOLDER-":on_text_changed(event, values)elif event in SortedType:on_table_sorted(event, data)elif event == "输出Excel文件":write_sheet()# 关闭窗口
window.close()

代码分析：

重点代码都用彩色字体加粗标注了：

遍历表格

读取代码如下：

import pdfplumber

def read_table(file):
dct = dict()
with pdfplumber.open(file) as pdf:
for page in pdf.pages:
tables = page.extract_tables(table_settings = {})
for table in tables:
for lst in table:
# 根据表格实际情况来清洗数据
return dct

布局界面

import PySimpleGUI as pg

layout = [
[sg.Text("昆山分行考勤表",font=('',16)),
sg.Text(pad=(132,10)),
sg.Text("请选择考勤文件:",font=font),
sg.Input(key="-FOLDER-", enable_events=True, readonly=True,font=font,size=18),
sg.FolderBrowse(button_text='...', enable_events=True, initial_folder='./')
],
[sg.Text("考勤日期：",font=font),
sg.Text(DateFormat,key='-DATE-',font=font)
],
[sg.Table(values='',
headings=table_head.split(','),
key='-TABLE-',
auto_size_columns=False,
justification='left',
num_rows=10)],
[sg.Button("输出Excel文件",size=(12,1),pad=(15,30)),
sg.Button(SortedType[0], enable_events=True,size=(10,1),pad=(15,30)),
sg.Button(SortedType[1], enable_events=True,size=(10,1),pad=(15,30)),
sg.Button(SortedType[2], enable_events=True,size=(10,1),pad=(15,30)),
sg.Button(SortedType[3], enable_events=True,size=(10,1),pad=(15,30)),
sg.Button("退出",size=(10,1),pad=(15,30))],
[sg.StatusBar('',key="-BAR-",font=font,size=92)]
]

控件简介

除了最常用的Text, Input, Button，使用了 FolderBrowse、Table、StatsBar 三个不是最常用的控件，分别是文件夹打开框、表格和状态栏。

表格最重要的三个参数： values, headings, auto_size_columns

sg.Table(values='', headings=table_head.split(','), auto_size_columns=False)

表格数据values和表头headings都列表(分别是二维和一维的)，auto_size_columns=False建议不要缺省，否则列宽不可控，各列都自动缩进紧靠在一起。

表格更新数据的方法：window['-TABLE-'].update(values=data)

写入表格

import xlwt

def write_sheet():
global data, date, table_head, ErrMessage
if ErrMessage[:2] in ('错误','输出'): return
myxl = xlwt.Workbook()
style = xlwt.easyxf('align: wrap yes; align: horiz center; font: bold yes;')
sheet = myxl.add_sheet('考勤表')
wcol = [20,40,60,30,30,40,40,40,60]
for i,w in enumerate(wcol):
sheet.col(i).width = w * 80
sheet.write_merge(0,0,0,8,'出勤统计报表',style)
style = xlwt.easyxf('borders:top thin; borders:bottom thin; borders:left thin; borders:right thin;')
sheet.write_merge(1,1,0,2,'考勤日期：'+date[0])
for i,head in enumerate(['序号']+table_head.split(',')):
sheet.write(2,i,head,style)
for i,row in enumerate(data):
for j,col in enumerate([str(i+1)]+row):
sheet.write(3+i,j,col,style)
for i,t in enumerate(SortedType):
if t in ErrMessage:
tmp = SortedType[i]
break
else: tmp = ""
excel_file = f'昆山分行考勤表{date[0]}({tmp}{strDateTime()}).xls'
ErrMessage = f'输出文件为：{excel_file}'
try:
myxl.save(excel_file)
except:
ErrMessage = '写入excel文件失败！'

注意单格和多个的写入区别： sheet.write() sheet.write_merge()

事件循环

while True:
event, values = window.read()
if event == sg.WINDOW_CLOSED or event == "退出":
break
elif event == "-FOLDER-":
on_text_changed(event, values)
elif event in SortedType:
on_table_sorted(event, data)
elif event == "输出Excel文件":
write_sheet()

# 表格排序

SortedType = ["出勤率排序","加班时长排序","迟到次数排序","早退次数排序"]
def on_table_sorted(event, data):
global ErrMessage
if not data: return
slist = ['x[-4][:-1]', 'x[-1]', 'x[-3]', 'x[-2]']
style = slist[SortedType.index(event)]
data = sorted(data, key=lambda x: float(eval(style)), reverse=True)
window['-TABLE-'].update(values=data)
ErrMessage = f'已按{event}更新！'
window['-BAR-'].update(ErrMessage)