python add utf-8 character set
python 3.*以前的版本，打印汉字等亚洲字符，需要在.py文件的开头额外添加编码信息。这里我就是简单的写了一个添加utf-8编码的工具方法，方便自己使用。其实，在 pyDev IDE里面，可以给每个文件定义开头的。我的博客里面有。这里就给出一个可以遍历指定目录里面所有.py的文件，没有添加编码的，全部添加编码。
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#-*-coding:utf-8-*-'''Created on 2012-4-22@author: kanpiaoxue'''from string import stripimport osclass PythonUtil(object): UTF8_STRING = '#-*-coding:utf-8-*-' def __init__(self): pass def addAddUtf8(self, inputFile): needUtf8ListFiles = self.needUtf8(inputFile) count = len(needUtf8ListFiles) if count > 0: for tmpFile in needUtf8ListFiles: print tmpFile, ' need to add ', self.UTF8_STRING readFile = None writeFile = None try: readFile = open(tmpFile, 'r') lines = readFile.readlines() lines.insert(0, self.UTF8_STRING + '\n') writeFile = open(tmpFile, 'w') writeFile.writelines(lines) print 'add ', self.UTF8_STRING, ' to ', tmpFile finally: if readFile is not None: readFile.close() if writeFile is not None: writeFile.flush() writeFile.close() print '\n-------------- result report begin --------------' if count > 0: print 'add ', self.UTF8_STRING, ' to ', count, ' files successfully.' else: print 'there are not any files needing to add ', self.UTF8_STRING print '-------------- result report end --------------\n' def needUtf8(self, inputFile): needUtf8ListFiles = [] if not os.path.isdir(inputFile): print '[', inputFile, '] is not a valid folder. Please check it.' return needUtf8ListFiles for root, dirs, files in os.walk(inputFile): for name in files: f = os.path.join(root, name) if f.endswith('.py') : tmpFile = None try: tmpFile = open(f, 'r') lines = tmpFile.readlines() if len(lines) > 0: if strip(lines[0]) != self.UTF8_STRING: needUtf8ListFiles.append(f) else: needUtf8ListFiles.append(f) finally: if tmpFile is not None: tmpFile.close() return needUtf8ListFiles if __name__ == '__main__': f = r'E:\workspace_python' pythonUtil = PythonUtil() pythonUtil.addAddUtf8(f)