Python：列表和字符串匹配

Question

I have following:

temp = "aaaab123xyz@+"

lists = ["abc", "123.35", "xyz", "AND+"]

for list in lists
  if re.match(list, temp, re.I):
    print "The %s is within %s." % (list,temp)

The re.match is only match the beginning of the string, How to I match substring in between too.

Answer 1

You can use re.search instead of re.match .

It also seems like you don't really need regular expressions here. Your regular expression 123.35 probably doesn't do what you expect because the dot matches anything.

If this is the case then you can do simple string containment using x in s .

Answer 2

Use re.search or just use in if l in temp:

Note : built-in type list should not be shadowed, so for l in lists: is better

Answer 3

You can do this with a slightly more complex check using map and any .

>>> temp = "aaaab123xyz@+"
>>> lists = ["abc", "123.35", "xyz", "AND+"]
>>> any(map(lambda match: match in temp, lists))
True
>>> temp = 'fhgwghads'
>>> any(map(lambda match: match in temp, lists))
False

I'm not sure if this is faster than a compiled regexp.