python修改函数命名方式

#! /usr/bin/env python
#coding=utf-8

# author: ubunoon
# email: netubu # gmail.com
# date: 2011-2-22
# blog: http://www.cnblogs.com/ubunoon #       http://www.qtrstudio.com/blog

import re
import shutil

func = re.compile(r'^def\s(\w+)')
name = re.compile(r'^[a-zA-Z]+(_[a-z])*')

def replaceFuncName(func_name):
    while '_' in func_name:
        value = name.search( func_name )
        if value is not None:
            k = value.groups()[0]
            if k is not None:
                func_name = func_name.replace(k, k[1].upper())
                
    return func_name

def processLine(lines):
    new_lines = []
    for line in lines:
        value = func.match(line)
        if value is not None:
            func_name = value.groups()[0]
            value = name.match( func_name )
            new_func_name = replaceFuncName( func_name)
            
            line = line.replace( func_name, new_func_name )
            
        new_lines.append(line)
        
    return new_lines

if __name__ == '__main__':
    with open('utils.py') as ut:
        new_lines = processLine( ut.readlines() )
        
    shutil.copy( 'utils.py', 'utils.py.bak' )
    
    with open('utils.py', 'w') as ut:
        ut.writelines( new_lines )