Python从数组中删除匹配模式的元素

Question

我有一个字典，其中包含作为键的字符串和作为值的列表。

我想删除所有包含字符串“food”、“staging”、“msatl”和“azeus”的列表元素。我已经有了下面的代码，但是我很难将我在 filterIP 中的逻辑应用于我拥有的其余字符串。

    def filterIP(fullList):
       regexIP = re.compile(r'\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}$')
       return filter(lambda i: not regexIP.search(i), fullList)

    groups = {key : [domain.replace('fake.com', 'env.fake.com')
      for domain in filterIP(list(set(items)))]
        for (key, items) in groups.iteritems() }

    for key, value in groups.iteritems():
      value.sort()

    meta = { "_meta" : { "hostvars" : hostvars } }
    groups.update(meta)

    print(self.json_format_dict(groups, pretty=True))

电流输出示例

 "role_thumper": [
    "thumper-msatl1-prod-1.env.fake.com",
    "thumper-msatl1-prod-2.env.fake.com",
    "thumper-rwva1-prod-1.env.fake.com",
    "thumper-rwva1-prod-2.env.fake.com",
    "thumper-rwva1-prod-3.env.fake.com",
    "thumper-rwva1-prod-4.env.fake.com",
    "thumper-rwva1-prod-5.env.fake.com",
    "thumper-rwva1-prod-6.env.fake.com",
    "thumper-staging-1.env.fake.com"
  ],
  "role_thumper_mongo": [
    "thumper-mongo-staging-1.env.fake.com",
    "thumper-mongo-staging-2.env.fake.com",
    "thumpermongo-rwva1-staging-1.env.fake.com",
    "thumpermongo-rwva1-staging-2.env.fake.com"
  ],
  "role_thumper_mongo_arb": [
    "thumper-mongo-arb-staging-1.env.fake.com",
    "thumpermongo-arb-rwva1-staging-1.env.fake.com"
  ],

Answer 1

列表理解就是你所追求的

x= ["a", "b", "aa", "aba"]
x_filtered = [i for i in x if "a" not in i]
print(x_filtered)
>>> ['b']

这只是 for 循环的简写。

x_filtered = []
for i in x:
    if "a" not in i:
        x_filtered.append(i)