[英]Extracting a string between specified characters in python
I'm a newbie to regular expressions and I have the following string: 我是正则表达式的新手,并且具有以下字符串:
sequence = '["{\"First\":\"Belyuen,NT,0801\",\"Second\":\"Belyuen,NT,0801\"}","{\"First\":\"Larrakeyah,NT,0801\",\"Second\":\"Larrakeyah,NT,0801\"}"]'
I am trying to extract the text Belyuen,NT,0801
and Larrakeyah,NT,0801
in python. 我正在尝试在python中提取文本
Belyuen,NT,0801
和Larrakeyah,NT,0801
。 I have the following code which is not working: 我有以下代码无法正常工作:
re.search('\:\\"...\\', ''.join(sequence))
Ie I want to get the string between characters :\\
and \\
. 即我想获取字符
:\\
和\\
之间的字符串。
Don't use regex for this. 不要为此使用正则表达式。 It appears to be a rather strangely split set of JSON strings.
它似乎是一组相当奇怪的JSON字符串集合。 Join them back together and use the
json
module to decode it. 将它们重新结合在一起,并使用
json
模块对其进行解码。
import json
sequence = '[%s]' % ','.join(sequence)
data = json.loads(sequence)
print data[0]['First'], data[0]['Second']
(Note the json module is new in Python2.6 - if you have a lower version, download and install simplejson). (请注意,json模块是Python2.6中的新增功能-如果您的版本较低,请下载并安装simplejson)。
it seems like a proper serialization of the Python dict, you could just do: 看起来像是对python字典的正确序列化,您可以这样做:
>>> sequence = ["{\"First\":\"Belyuen,NT,0801\",\"Second\":\"Belyuen,NT,0801\"}","{\"First\":\"Larrakeyah,NT,0801\",\"Second\":\"Larrakeyah,NT,0801\"}"]
>>> import json
>>> for i in sequence:
d = json.loads(i)
print(d['First'])
Belyuen,NT,0801
Larrakeyah,NT,0801
you don't need regex 你不需要正则表达式
>>> sequence = ["{\"First\":\"Belyuen,NT,0801\",\"Second\":\"Belyuen,NT,0801\"}","{\"First\":\"Larrakeyah,NT,0801\",\"Second\":\"Larrakeyah,NT,0801\"}"]
>>> for item in sequence:
... print eval(item).values()
...
['Belyuen,NT,0801', 'Belyuen,NT,0801']
['Larrakeyah,NT,0801', 'Larrakeyah,NT,0801']
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