引用・参考

http://qiita.com/wanwanland/items/ce272419dde2f95cdabc

https://docs.python.jp/3/howto/regex.html

基本形（コンパイル無=使いまわさない）

import re
pattern = r"[c-e]"
target = "abcdefg"
matchObject = re.search(pattern , target)

基本形（コンパイル有＝使いまわす場合）

import re
pattern = r"cde"
target = "abcdefg"
ptn = re.compile(pattern)
matchObject = ptn.search(target)

実例

import re
pattern = r"[c-e]{2,}"
target = "abcdefgABCDEFG"
matchObject = re.search(pattern,target,re.IGNORECASE)
print("matchObject          = ",matchObject)
print("matchObject.group()  = ",matchObject.group())
print("matchObject.span()   = ",matchObject.span())
matchObject = re.findall(pattern,target,re.IGNORECASE)
print("matchObject(findall) = ",matchObject)

結果

matchObject = <_sre.SRE_Match object; span=(2, 5), match='cde'> matchObject.group() = cde matchObject.span() = (2, 5) matchObject(findall) = [‘cde’, ‘CDE’]

プロパティ

構文