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
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)
您可以编写自己的copytree稍微修改一下的版本,这将有助于:
所有这些代码与原始copytree的不同之处在于在复制文件后调用指定的函数。所以在你的例子中,你可以让它更新对话框,或者更新成功复制的文件数,等等
使用ProgressDialog's Update函数,或者UpdatePulse如果您只需要向用户显示正在发生的事情。在
您还可以允许用户中止操作,检查主题上的Mike Driscoll's excellent tutorial。在
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