wxpython filecopy进度条

Question

朋友，请好心帮助我如何在Windows中复制文件夹时更新WX Widgets python中的进度条。我尝试了很多。 即时通讯python，但不是那么专业。只是想从控制台python编程切换到gui编程。请帮助我。

在此先感谢！ Ganesh R

Answer 1

使用ProgressDialog's Update函数或UpdatePulse如果您只需要向用户显示正在发生的事情。

pulse_dlg = wx.ProgressDialog(title="Dialog Title", message="Dialog Message", maximum=100) 
# Some stuff happens 
for i in range(10): 
    wx.MilliSleep(250) 
    pulse_dlg.Update(10*i) 

您还可以允许用户中止操作，关于这个问题的检查Mike Driscoll's excellent tutorial。

Answer 2

你可以写的copytree自己极轻微修改后的版本是会有所帮助：

import shutil 
import os.path 
import os 

def file_copied(): 
    print "File copied!" 

# Usage example: copytree(src, dst, cb=file_copied) 
def copytree(src, dst, symlinks=False, ignore=None, cb=None): 
    """Recursively copy a directory tree using copy2(). 

    The destination directory must not already exist. 
    If exception(s) occur, an Error is raised with a list of reasons. 

    If the optional symlinks flag is true, symbolic links in the 
    source tree result in symbolic links in the destination tree; if 
    it is false, the contents of the files pointed to by symbolic 
    links are copied. 

    The optional ignore argument is a callable. If given, it 
    is called with the `src` parameter, which is the directory 
    being visited by copytree(), and `names` which is the list of 
    `src` contents, as returned by os.listdir(): 

     callable(src, names) -> ignored_names 

    Since copytree() is called recursively, the callable will be 
    called once for each directory that is copied. It returns a 
    list of names relative to the `src` directory that should 
    not be copied. 

    XXX Consider this example code rather than the ultimate tool. 

    """ 
    names = os.listdir(src) 
    if ignore is not None: 
     ignored_names = ignore(src, names) 
    else: 
     ignored_names = set() 

    os.makedirs(dst) 
    errors = [] 
    for name in names: 
     if name in ignored_names: 
      continue 
     srcname = os.path.join(src, name) 
     dstname = os.path.join(dst, name) 
     try: 
      if symlinks and os.path.islink(srcname): 
       linkto = os.readlink(srcname) 
       os.symlink(linkto, dstname) 
      elif os.path.isdir(srcname): 
       copytree(srcname, dstname, symlinks, ignore) 
      else: 
       # Will raise a SpecialFileError for unsupported file types 
       shutil.copy2(srcname, dstname) 
       if cb is not None: 
        cb() 
     # catch the Error from the recursive copytree so that we can 
     # continue with other files 
     except Error, err: 
      errors.extend(err.args[0]) 
     except EnvironmentError, why: 
      errors.append((srcname, dstname, str(why))) 
    try: 
     shutil.copystat(src, dst) 
    except OSError, why: 
     if WindowsError is not None and isinstance(why, WindowsError): 
      # Copying file access times may fail on Windows 
      pass 
     else: 
      errors.extend((src, dst, str(why))) 
    if errors: 
     raise Error, errors 

所有这些代码确实不同于原来copytree是做出特定功能的调用后，副本文件。所以在你的情况代替file_copied（）你可以让它更新（）对话框，或更新成功复制的文件数的计数等。