这是一个简短的示例，应该使用正则表达式来解决问题：

import re

rep = {"condition1": "", "condition2": "text"} # define desired replacements here

# use these three lines to do the replacement
rep = dict((re.escape(k), v) for k, v in rep.iteritems()) 
#Python 3 renamed dict.iteritems to dict.items so use rep.items() for latest versions
pattern = re.compile("|".join(rep.keys()))
text = pattern.sub(lambda m: rep[re.escape(m.group(0))], text)

例如：

>>> pattern.sub(lambda m: rep[re.escape(m.group(0))], "(condition1) and --condition2--")

’() and –text–‘