A little software practice python

A friend wrote a small software in Python, just not how to seriously use Python programming, so improve

The main practice of some knowledge:

1.python Tkinter page Layout, this time the software used a grid

2.Event Event Binding

3. Processing of strings.

Use of 4.tkFileDialog

5. A little bit of object-oriented programming.

6.python Coding structure and practice code good Habits

Post-improvement:

1. Add scroll bar

2. Add algorithm transform file

3. You can modify the save path

4. Hardening Error Handling

5. Add a function that, depending on the type, opens the converted file with the direct double-click Office.

The pits encountered:

Error in mouse event binding:

When using the Bind method, the binding event must be written in a branch, as follows, the correct way to write, otherwise, if written in one line, the mouse binding event will have type error

self.Text_in=Text(master,width=40,height=25,yscrollcommand=self.Text_in_sv.set,xscrollcommand=self.Text_in_sh.set, wrap=‘none‘)
self.Text_in.insert(END,‘请双击选择文件，可多选！！‘)
self.Text_in.grid(row=2,column=0)

Incorrect notation, so that the event binding is unsuccessful:

Self. Text_in=text (master,width=40,height=25,yscrollcommand=self. Text_in_sv.set,xscrollcommand=self. Text_in_sh.set, wrap= ' None '). Grid (Row=2,column=0)

String Conversion Essentials

Pop-up string last character elegant notation files[:-1]

Rough Code:

For name in filenames:                if name = = Filenames[-1]: Self                    . Text_in.insert (end,name) break self                . Text_in.insert (end,name+ ' \ n ')

For the last line without ' \ n ', only in this way, there is no elegant wording

#-*-coding:utf-8-*-# __author__ = ' Big Cow ' from Tkinter import *import tablibimport tkinterimport tkfiledialogclass Main Frame (tkinter.frame): def __init__ (self,master): tkinter.frame.__init__ (Self,master) Label_top=la        Bel (master,text= ' Convert small Software ') Label_top.grid (row=0,columnspan=3) Label_l=label (master,text= "Conversion input:")                Label_l.grid (row=1,column=0) Label_m=label (master,text= "========") Label_m.grid (Row=1,column=1) Label_r=label (master,text= "Convert output") Label_r.grid (row=1,column=2) self. TEXT_IN_SV = Tkinter.scrollbar (self, orient=tkinter.vertical) #文本框-vertical scroll bar self. Text_in_sh = Tkinter.scrollbar (self, orient=tkinter.horizontal) #文本框-horizontal scroll bar self. Text_in=text (master,width=40,height=25,yscrollcommand=self. Text_in_sv.set,xscrollcommand=self. Text_in_sh.set, wrap= ' none ') self. Text_in.insert (END, ' Double click to select File, can choose multiple!! ') self. Text_in.grid (row=2,column=0) BuTton_trans=button (master,text= '---"xls ', Width=6,command=self.txt2xls) Button_trans.grid (row=2,column=1) Self. Text_out = Text (master,width=40,height=25,wrap= ' none ') self. Text_out.grid (row=2,column=2,padx=15) label_bottom =label (master,text= ' Power by Cow ') LABEL_BOTTOM.G RID (row=3,columnspan=3,sticky= ' es ') self. Text_in.bind (' <Double-Button-1> ', self. Operatefiles) # define options for opening or saving a file Self.file_opt = options = {} Optio ns[' defaultextension ' = '. txt ' options[' filetypes '] = [(' All Files ', '. * '), (' Text files ', '. txt ')] options [' initialdir '] = ' c:\\ ' options[' initialfile '] = ' cow.txt ' options[' parent '] = Master options[' title '        ] = ' Pls chouse a file ' options[' multiple '] = 1 #save Path self.dir_opt = options = {} options[' initialdir ' = ' c:\\ ' options[' mustexist '] = False options[' parent '] = MasteR options[' title '] = ' This is a title ' Def operatefiles (self,event=none): filenames = Tkfiledialo G.askopenfilename (**self.file_opt) if filenames:self.                    Text_in.delete (0.0, tkinter.end) for name in Filenames:if name = = Filenames[-1]: Self. Text_in.insert (end,name) break self. Text_in.insert (end,name+ ' \ n ') def Openxls (self): Pass def Txt2xls (self): files = Self .                Text_in.get (1.0, END) if files:for text in Files[:-1].split (' \ n '): Print text                      Try:headers = (' servername ', ' location ', ' name ', ' upstream ') data = [] data = Tablib. Dataset (*data, Headers=headers) linuxlines=open (text, "RB") for line in Linuxlines.re                        Adlines (): Col=line.split (' | ') If Len (COL)!=4:continue for server in Col[3].split (";"):                    Data.append ([Col[0],col[1],col[2],server]) Open (text+ ". xls", "WB"). Write (Data.xls) Linuxlines.close () self. Text_out.insert (end,text+ '. xls\n ') except:print "Error" Else:print " Please enter the correct file!! "Def main (): root = tkinter.tk () root.columnconfigure (0, weight=1) root.rowconfigure (0, W    eight=1) root.title (' Txt2xls ') root.geometry (' 620x360 ') Main_frame = MainFrame (root) Main_frame.mainloop () if __name__ = = "__main__": Main () Pass

A little software practice python