filedialog tkinter and opening files

Question

I m working for the first time on coding a Browse button for a program in Python3  I ve been searching the internet and this site  and even python standard library   I have found sample code and very superficial explanations of things  but I haven t been able to find anything that addresses the problem I m having directly  or a good enough explanation so I can customize code to my needs   Here is the relevant snippet   Button self  text    Browse   command   self load file  width   10            grid row   1  column   0  sticky   W           def load file self        filename   filedialog askopenfilename filetypes      Template files      tplate                                                               HTML files      html   htm                                                               All files                 if filename           try               self settings  template   set filename          except               messagebox showerror  Open Source File    Failed to read file  n  s   filename              return   The method is a hybrid of some code I found along the way with my own customizations  It seems like I finally got it to work  kinda   though its not exactly how I need it   I get this error when I activate the  Browse  button  NameError  global name  filedialog  is not defined   I ve found fairly similar issues along the way but all the solutions suggested I have covered  I went into the  filedialog  help section of IDLE but didn t glean anything from there either   Would someone mind providing a break down and a little guidance on this  none of my books address it specifically  and I ve checked all the solutions provided to others   I m lost

User · Answer

Did you try adding the self prefix to the fileName and replacing the method above the Button   With the self  it becomes visible between methods        def load file self       self fileName   filedialog askopenfilename filetypes      Template files      tplate                                                           HTML files      html   htm                                                           All files

User · Answer

I had to specify individual commands first and then use the   to bring all in command    from tkinter import filedialog from tkinter import

User · Answer

The exception you get is telling you filedialog is not in your namespace  filedialog  and btw messagebox  is a tkinter module  so it is not imported just with from tkinter import     gt  gt  gt  from tkinter import    gt  gt  gt  filedialog Traceback  most recent call last     File   lt interactive input gt    line 1  in  lt module gt  NameError  name  filedialog  is not defined  gt  gt  gt     you should use for example    gt  gt  gt  from tkinter import filedialog  gt  gt  gt  filedialog  lt module  tkinter filedialog  from  C  Python32 lib tkinter filedialog py  gt   gt  gt  gt    or    gt  gt  gt  import tkinter filedialog as fdialog   or   gt  gt  gt  from tkinter filedialog import askopenfilename   So this would do for your browse button   from tkinter import   from tkinter filedialog import askopenfilename from tkinter messagebox import showerror  class MyFrame Frame       def   init   self           Frame   init   self          self master title  Example           self master rowconfigure 5  weight 1          self master columnconfigure 5  weight 1          self grid sticky W E N S           self button   Button self  text  Browse   command self load file  width 10          self button grid row 1  column 0  sticky W       def load file self           fname   askopenfilename filetypes    Template files      tplate                                                 HTML files      html   htm                                                 All files                     if fname              try                  print    here it comes  self settings  template   set fname                  except                         lt - naked except is a bad idea                 showerror  Open Source File    Failed to read file n  s     fname              return   if   name         main         MyFrame   mainloop

[python] filedialog, tkinter and opening files

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