python：如果超出特定文件大小，则将文件输出到另一个文本文件

一个简单的示例，如果您不想使用RotatingFileHandler。

您应该

os.stat('filename').st_size

import osimport sysclass RotatingFile(object):    def __init__(self, directory='', filename='foo', max_files=sys.maxint,        max_file_size=50000):        self.ii = 1        self.directory, self.filename      = directory, filename        self.max_file_size, self.max_files = max_file_size, max_files        self.finished, self.fh  = False, None        self.open()    def rotate(self):        """Rotate the file, if necessary"""        if (os.stat(self.filename_template).st_size>self.max_file_size): self.close() self.ii += 1 if (self.ii<=self.max_files):     self.open() else:     self.close()     self.finished = True    def open(self):        self.fh = open(self.filename_template, 'w')    def write(self, text=""):        self.fh.write(text)        self.fh.flush()        self.rotate()    def close(self):        self.fh.close()    @property    def filename_template(self):        return self.directory + self.filename + "_%0.2d" % self.iiif __name__=='__main__':    myfile = RotatingFile(max_files=9)    while not myfile.finished:        myfile.write('this is a test')

运行完之后…

[mpenning@Bucksnort ~]$ ls -la | grep foo_-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_01-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_02-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_03-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_04-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_05-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_06-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_07-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_08-rw-r--r--  1 mpenning mpenning    50008 Jun  5 06:51 foo_09[mpenning@Bucksnort ~]$