output.py

linux下的一款播放器

# 
# ***** BEGIN LICENSE BLOCK *****
# Source last modified: $Id: output.py,v 1.3 2004/07/07 22:00:04 hubbe Exp $
# 
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"""Override/tee standard output & standard error with style."""

import sys

class OutReplacement:
    def __init__(self, fil):
        self.fil = fil
        self.block_count = 0
        self.fil_list = []

    def __getattr__(self, name):
        return getattr(self.fil, name)

    def Block(self):
        self.block_count = self.block_count + 1

    def UnBlock(self):
        self.block_count = self.block_count - 1

    def AddOutputFile(self, path):
        fil = open(path, "w")
        self.fil_list.append(fil)

    def RemoveOutputFile(self, path):
        rm_fil = None
        for fil in self.fil_list:
            if fil.name == path:
                rm_fil = fil
                break
        if rm_fil:
            self.fil_list.remove(rm_fil)
            rm_fil.close()
    
    def write(self, text):
        if not self.block_count:
            self.fil.write(text)
            self.fil.flush()

        for fil in self.fil_list:
            fil.write(text)
            if hasattr(fil, "flush"):
                fil.flush()

    def flush(self):
        for fil in self.fil_list:
            if hasattr(fil, "flush"):
                fil.flush()
        
## replace sys.stdout with the new class
if not hasattr(sys.stdout, "AddOutputFile"):
    sys.stdout.flush()
    sys.stdout = OutReplacement(sys.stdout)

## Backwards compatibility
OutReplacment = OutReplacement