用Python替换文件中的文本

这应该做

replacements = {'zero':'0', 'temp':'bob', 'garbage':'nothing'}with open('path/to/input/file') as infile, open('path/to/output/file', 'w') as outfile:    for line in infile:        for src, target in replacements.iteritems(): line = line.replace(src, target)        outfile.write(line)

编辑
：要解决Eildosa的评论，如果您要执行此操作而不写另一个文件，那么最终将不得不将整个源文件读入内存：

lines = []with open('path/to/input/file') as infile:    for line in infile:        for src, target in replacements.iteritems(): line = line.replace(src, target)        lines.append(line)with open('path/to/input/file', 'w') as outfile:    for line in lines:        outfile.write(line)

编辑： 如果您使用的是Python
3.x，请使用

replacements.items()

replacements.iteritems()